Overdose
Symptoms and Signs
Symptoms following acute NSAID overdoses are usually limited to lethargy, drowsiness,
nausea, vomiting, and epigastric pain, which are generally reversible with supportive
care. Gastrointestinal bleeding can occur. Hypertension, acute renal failure, respiratory
depression and coma may occur, but are rare. Anaphylactoid reactions have been reported
with therapeutic ingestion of NSAIDs, and may occur following an overdose.
Treatment
Patients should be managed by symptomatic and supportive care following a NSAIDs
overdose. There are no specific antidotes. Emesis and/or activated charcoal (60 g to 100 g
in adults, 1 g/kg to 2 g/kg in children) and/or osmotic cathartic may be indicated in
patients seen within 4 hours of ingestion with symptoms or following a large oral
overdose (5 to 10 times the usual dose). Forced diuresis, alkalization of urine,
hemodialysis or hemoperfusion may not be useful due to high protein binding.
Single overdoses of TORADOL have been variously associated with abdominal pain,
nausea, vomiting, hyperventilation, peptic ulcers and/or erosive gastritis and renal
dysfunction which have resolved after discontinuation of dosing.
Undesirable effects
Adverse reaction rates increase with higher doses of TORADOL (ketorolac tromethamine). Practitioners
should be alert for the severe complications of treatment with TORADOL (ketorolac tromethamine) , such
as GI ulceration, bleeding and perforation, postoperative bleeding, acute renal
failure, anaphylactic and anaphylactoid reactions and liver failure (see BOXED
WARNING, WARNINGS, PRECAUTIONS,
and DOSAGE AND ADMINISTRATION). These NSAID-related
complications can be serious in certain patients for whom TORADOL (ketorolac tromethamine) is indicated,
especially when the drug is used inappropriately.
In patients taking TORADOL (ketorolac tromethamine) or other NSAIDs in clinical trials, the most frequently
reported adverse experiences in approximately 1% to 10% of patients are:
| Gastrointestinal (GI) experiences including:
|
| abdominal pain* |
constipation/diarrhea |
dyspepsia* |
| flatulence |
GI fullness |
GI ulcers (gastric/duodenal) |
| gross bleeding/perforation |
Heartburn |
nausea* |
| stomatitis |
Vomiting |
|
| Other experiences: |
| abnormal renal function |
Anemia |
dizziness |
| drowsiness |
Edema |
elevated liver enzymes |
| headaches* |
Hypertension |
increased bleeding time |
| injection site pain |
Pruritus |
purpura |
| rashes |
Tinnitus |
sweating |
| *Incidence greater than 10% |
Additional adverse experiences reported occasionally ( < 1% in patients taking
TORADOL (ketorolac tromethamine) or other NSAIDs in clinical trials) include:
Body as a Whole: fever, infections, sepsis
Cardiovascular: congestive heart failure, palpitation, pallor, tachycardia,
syncope
Dermatologic: alopecia, photosensitivity, urticaria
Gastrointestinal: anorexia, dry mouth, eructation, esophagitis, excessive
thirst, gastritis, glossitis, hematemesis, hepatitis, increased appetite, jaundice,
melena, rectal bleeding
Hemic and Lymphatic: ecchymosis, eosinophilia, epistaxis, leukopenia,
thrombocytopenia
Metabolic and Nutritional: weight change
Nervous System: abnormal dreams, abnormal thinking, anxiety, asthenia,
confusion, depression, euphoria, extrapyramidal symptoms, hallucinations, hyperkinesis,
inability to concentrate, insomnia, nervousness, paresthesia, somnolence, stupor,
tremors, vertigo, malaise
Reproductive, female: infertility
Respiratory: asthma, cough, dyspnea, pulmonary edema, rhinitis
Special Senses: abnormal taste, abnormal vision, blurred vision, hearing
loss
Urogenital: cystitis, dysuria, hematuria, increased urinary frequency,
interstitial nephritis, oliguria/polyuria, proteinuria, renal failure, urinary
retention
Other rarely observed reactions (reported from postmarketing experience in
patients taking TORADOL (ketorolac tromethamine) or other NSAIDs) are:
Body as a Whole: angioedema, death, hypersensitivity reactions such
as anaphylaxis, anaphylactoid reaction, laryngeal edema, tongue edema (see WARNINGS),
myalgia
Cardiovascular: arrhythmia, bradycardia, chest pain, flushing, hypotension,
myocardial infarction, vasculitis
Dermatologic: exfoliative dermatitis, erythema multiforme, Lyell's syndrome,
bullous reactions including Stevens-Johnson syndrome and toxic epidermal necrolysis
Gastrointestinal: acute pancreatitis, liver failure, ulcerative stomatitis,
exacerbation of inflammatory bowel disease (ulcerative colitis, Crohn's disease)
Hemic and Lymphatic: agranulocytosis, aplastic anemia, hemolytic anemia,
lymphadenopathy, pancytopenia, postoperative wound hemorrhage (rarely requiring
blood transfusion - see BOXED WARNING, WARNINGS,
and PRECAUTIONS)
Metabolic and Nutritional: hyperglycemia, hyperkalemia, hyponatremia
Nervous System: aseptic meningitis, convulsions, coma, psychosis
Respiratory: bronchospasm, respiratory depression, pneumonia
Special Senses: conjunctivitis
Urogenital: flank pain with or without hematuria and/or azotemia, hemolytic
uremic syndrome
Postmarketing Surveillance Study
A large postmarketing observational, nonrandomized study, involving approximately
10,000 patients receiving ketorolac tromethamineIV/IM, demonstrated
that the risk of clinically serious gastrointestinal (GI) bleeding was dose-dependent
(see Tables 3A and 3B). This was particularly true in elderly patients who received
an average daily dose greater than 60 mg/day of ketorolac tromethamineIV/IM
(see Table 3A).
Table 3 Incidence of Clinically Serious GI Bleeding as Related
to Age, Total Daily Dose, and History of GI Perforation, Ulcer, Bleeding (PUB)
After up to 5 Days of Treatment With Ketorolac TromethamineIV/IMA.
| A. Adult Patients Without History of PUB
|
| Age of Patients |
Total Daily Dose of Ketorolac TromethamineIV/IM |
| |
≤ 60 mg |
> 60 to 90 mg |
> 90 to 120 mg |
> 120 mg |
| < 65 years of age |
0.4% |
0.4% |
0.9% |
4.6% |
| ≥ 65 years of age |
1.2% |
2.8% |
2.2% |
7.7% |
| B. Adult Patients With History of PUB |
| Age of Patients |
Total Daily Dose of Ketorolac TromethamineIV/IM |
| |
≤ 60 mg |
> 60 to 90 mg |
> 90 to 120 mg |
> 120 mg |
| < 65 years of age |
2.1% |
4.6% |
7.8% |
15.4% |
| ≥ 65 years of age |
4.7% |
3.7% |
2.8% |
25.0% |
Fertility, pregnancy and lactation
In late pregnancy, as with other NSAIDs, TORADOL (ketorolac tromethamine) should be avoided because
it may cause premature closure of the ductus arteriosus.
PRECAUTIONS
Special warnings and precautions for use
WARNINGS
(see also BOXED WARNING)
The total combined duration of use of TORADOLORAL and IV or IM dosing
of ketorolac tromethamine is not to exceed 5 days in adults. TORADOL (ketorolac tromethamine) ORAL
is not indicated for use in pediatric patients.
The most serious risks associated with TORADOL (ketorolac tromethamine) are:
Gastrointestinal Effects - Risk of Ulceration, Bleeding, and Perforation
TORADOL (ketorolac tromethamine) is contraindicated in patients with previously documented peptic ulcers
and/or GI bleeding. Toradol (ketorolac tromethamine) can cause serious gastrointestinal (GI) adverse
events including bleeding, ulceration and perforation, of the stomach, small
intestine, or large intestine, which can be fatal. These serious adverse events
can occur at any time, with or without warning symptoms, in patients treated
with TORADOL (ketorolac tromethamine).
Only one in five patients who develop a serious upper GI adverse event on NSAID
therapy is symptomatic. Minor upper gastrointestinal problems, such as dyspepsia,
are common and may also occur at any time during NSAID therapy. The incidence
and severity of gastrointestinal complications increases with increasing dose
of, and duration of treatment with, TORADOL (ketorolac tromethamine). Do not use TORADOL (ketorolac tromethamine) for more than
five days. However, even short-term therapy is not without risk. In addition
to past history of ulcer disease, other factors that increase the risk for GI
bleeding in patients treated with NSAIDs include concomitant use of oral corticosteroids,
or anticoagulants, longer duration of NSAID therapy, smoking, use of alcohol,
older age, and poor general health status. Most spontaneous reports of fatal
GI events are in elderly or debilitated patients and therefore, special care
should be taken in treating this population.
To minimize the potential risk for an adverse GI event, the lowest effective
dose should be used for the shortest possible duration. Patients and physicians
should remain alert for signs and symptoms of GI ulceration and bleeding during
NSAID therapy and promptly initiate additional evaluation and treatment if a
serious GI adverse event is suspected. This should include discontinuation of
TORADOL (ketorolac tromethamine) until a serious GI adverse event is ruled out. For high risk patients,
alternate therapies that do not involve NSAIDs should be considered.
NSAIDs should be given with care to patients with a history of inflammatory
bowel disease (ulcerative colitis, Crohn's disease) as their condition may be
exacerbated.
Hemorrhage
Because prostaglandins play an important role in hemostasis and NSAIDs affect
platelet aggregation as well, use of TORADOL (ketorolac tromethamine) in patients who have coagulation
disorders should be undertaken very cautiously, and those patients should be
carefully monitored. Patients on therapeutic doses of anticoagulants (eg, heparin
or dicumarol derivatives) have an increased risk of bleeding complications if
given TORADOL (ketorolac tromethamine) concurrently; therefore, physicians should administer such concomitant
therapy only extremely cautiously. The concurrent use of TORADOL (ketorolac tromethamine) and therapy
that affects hemostasis, including prophylactic low-dose heparin (2500 to 5000
units q12h), warfarin and dextrans have not been studied extensively, but may
also be associated with an increased risk of bleeding. Until data from such
studies are available, physicians should carefully weigh the benefits against
the risks and use such concomitant therapy in these patients only extremely
cautiously. Patients receiving therapy that affects hemostasis should be monitored
closely.
In postmarketing experience, postoperative hematomas and other signs of wound
bleeding have been reported in association with the peri-operative use of IV
or IM dosing of ketorolac tromethamine. Therefore, peri-operative use of TORADOL (ketorolac tromethamine)
should be avoided and postoperative use be undertaken with caution when hemostasis
is critical (see PRECAUTIONS).
Renal Effects
Long-term administration of NSAIDs has resulted in renal papillary necrosis
and other renal injury. Renal toxicity has also been seen in patients in whom
renal prostaglandins have a compensatory role in the maintenance of renal perfusion.
In these patients, administration of a NSAID may cause a dose-dependent reduction
in prostaglandin formation and, secondarily, in renal blood flow, which may
precipitate overt renal decompensation. Patients at greatest risk of this reaction
are those with impaired renal function, heart failure, liver dysfunction, those
taking diuretics and ACE inhibitors, and the elderly. Discontinuation of NSAID
therapy is usually followed by recovery to the pretreatment state.
TORADOL (ketorolac tromethamine) and its metabolites are eliminated primarily by the kidneys, which,
in patients with reduced creatinine clearance, will result in diminished clearance
of the drug (see CLINICAL PHARMACOLOGY).
Therefore, TORADOL (ketorolac tromethamine) should be used with caution in patients with impaired renal
function (see DOSAGE AND ADMINISTRATION)
and such patients should be followed closely. With the use of TORADOL (ketorolac tromethamine) , there
have been reports of acute renal failure, interstitial nephritis and nephrotic
syndrome.
Impaired Renal Function
TORADOL (ketorolac tromethamine) is contraindicated in patients with serum creatinine concentrations
indicating advanced renal impairment (see CONTRAINDICATIONS).
TORADOL (ketorolac tromethamine) should be used with caution in patients with impaired renal function
or a history of kidney disease because it is a potent inhibitor of prostaglandin
synthesis. Because patients with underlying renal insufficiency are at increased
risk of developing acute renal decompensation or failure, the risks and benefits
should be assessed prior to giving TORADOL (ketorolac tromethamine) to these patients.
Anaphylactoid Reactions
As with other NSAIDs, anaphylactoid reactions may occur in patients without
a known previous exposure or hypersensitivity to TORADOL (ketorolac tromethamine). TORADOL (ketorolac tromethamine) should not
be given to patients with the aspirin triad. This symptom complex typically
occurs in asthmatic patients who experience rhinitis with or without nasal polyps,
or who exhibit severe, potentially fatal bronchospasm after taking aspirin or
other NSAIDs (see CONTRAINDICATIONS and PRECAUTIONS:
Preexisting Asthma). Anaphylactoid reactions, like anaphylaxis, may have
a fatal outcome. Emergency help should be sought in cases where an anaphylactoid
reaction occurs.
Cardiovascular Effects
Cardiovascular Thrombotic Events
Clinical trials of several COX-2 selective and nonselective NSAIDs of up to
three years duration have shown an increased risk of serious cardiovascular
(CV) thrombotic events, myocardial infarction, and stroke, which can be fatal.
All NSAIDs, both COX-2 selective and nonselective, may have a similar risk.
Patients with known CV disease or risk factors for CV disease may be at greater
risk. To minimize the potential risk for an adverse CV event in patients treated
with an NSAID, the lowest effective dose should be used for the shortest duration
possible. Physicians and patients should remain alert for the development of
such events, even in the absence of previous CV symptoms. Patients should be
informed about the signs and/or symptoms of serious CV events and the steps
to take if they occur.
There is no consistent evidence that concurrent use of aspirin mitigates the
increased risk of serious CV thrombotic events associated with NSAID use. The
concurrent use of aspirin and an NSAID does increase the risk of serious GI
events (see Gastrointestinal Effects - Risk of Ulceration, Bleeding, and
Perforation). Two large, controlled clinical trials of a COX-2 selective
NSAID for the treatment of pain in the first 10-14 days following CABG surgery
found an increased incidence of myocardial infarction and stroke (see CONTRAINDICATIONS).
Hypertension
NSAIDs, including TORADOL (ketorolac tromethamine) , can lead to onset of new hypertension or worsening
of preexisting hypertension, either of which may contribute to the increased
incidence of CV events. Patients taking thiazides or loop diuretics may have
impaired response to these therapies when taking NSAIDs. NSAIDs, including TORADOL (ketorolac tromethamine) ,
should be used with caution in patients with hypertension. Blood pressure (BP)
should be monitored closely during the initiation of NSAID treatment and throughout
the course of therapy.
Congestive Heart Failure and Edema
Fluid retention, edema, retention of NaCl, oliguria, elevations of serum urea
nitrogen and creatinine have been reported in clinical trials with TORADOL (ketorolac tromethamine).
Therefore, TORADOL (ketorolac tromethamine) should be used only very cautiously in patients with cardiac
decompensation, hypertension or similar conditions.
Skin Reactions
NSAIDS, including TORADOL (ketorolac tromethamine) , can cause serious skin adverse events such
as exfoliative dermatitis, Stevens-Johnson Syndrome (SJS), and toxic epidermal
necrolysis (TEN), which can be fatal. These serious events may occur without
warning. Patients should be informed about the signs and symptoms of
serious skin manifestations and use of the drug should be discontinued at the
first appearance of skin rash, mucosal lesions, or any other sign of hypersensitivity.
Pregnancy
In late pregnancy, as with other NSAIDs, TORADOL (ketorolac tromethamine) should be avoided because
it may cause premature closure of the ductus arteriosus.
PRECAUTIONS
General
TORADOL (ketorolac tromethamine) cannot be expected to substitute for corticosteroids or to treat corticosteroid
insufficiency. Abrupt discontinuation of corticosteroids may lead to disease
exacerbation. Patients on prolonged corticosteroid therapy should have their
therapy tapered slowly if a decision is made to discontinue corticosteroids.
The pharmacological activity of TORADOL (ketorolac tromethamine) in reducing inflammation may diminish
the utility of this diagnostic sign in detecting complications of presumed noninfectious,
painful conditions.
Hepatic Effect
TORADOL (ketorolac tromethamine) should be used with caution in patients with impaired hepatic function
or a history of liver disease. Borderline elevations of one or more liver tests
may occur in up to 15% of patients taking NSAIDs including TORADOL (ketorolac tromethamine). These laboratory
abnormalities may progress, may remain unchanged, or may be transient with continuing
therapy. Notable elevations of ALT or AST (approximately three or more times
the upper limit of normal) have been reported in approximately 1% of patients
in clinical trials with NSAIDs. In addition, rare cases of severe hepatic reactions,
including jaundice and fatal fulminant hepatitis, liver necrosis and hepatic
failure, some of them with fatal outcomes have been reported.
A patient with symptoms and/or signs suggesting liver dysfunction, or in whom
an abnormal liver test has occurred, should be evaluated for evidence of the
development of a more severe hepatic reaction while on therapy with TORADOL (ketorolac tromethamine).
If clinical signs and symptoms consistent with liver disease develop, or if
systemic manifestations occur (eg, eosinophilia, rash, etc.), TORADOL (ketorolac tromethamine) should
be discontinued.
Hematologic Effect
Anemia is sometimes seen in patients receiving NSAIDs, including TORADOL (ketorolac tromethamine). This
may be due to fluid retention, occult or gross GI blood loss, or an incompletely
described effect upon erythropoiesis. Patients on long-term treatment with NSAIDs,
including TORADOL (ketorolac tromethamine) , should have their hemoglobin or hematocrit checked if they
exhibit any signs or symptoms of anemia. NSAIDs inhibit platelet aggregation
and have been shown to prolong bleeding time in some patients. Unlike aspirin,
their effect on platelet function is quantitatively less, of shorter duration,
and reversible. Patients receiving TORADOL (ketorolac tromethamine) who may be adversely affected by
alterations in platelet function, such as those with coagulation disorders or
patients receiving anticoagulants, should be carefully monitored.
Preexisting Asthma
Patients with asthma may have aspirin-sensitive asthma. The use of aspirin
in patients with aspirin-sensitive asthma has been associated with severe bronchospasm
which can be fatal. Since cross reactivity, including bronchospasm, between
aspirin and other nonsteroidal anti-inflammatory drugs has been reported in
such aspirin-sensitive patients, TORADOL (ketorolac tromethamine) should not be administered to patients
with this form of aspirin sensitivity and should be used with caution in patients
with preexisting asthma.
Information for Patients
TORADOL (ketorolac tromethamine) is a potent NSAID and may cause serious side effects such as gastrointestinal
bleeding or kidney failure, which may result in hospitalization and even fatal
outcome.
Physicians, when prescribing TORADOL (ketorolac tromethamine) , should inform their patients or their
guardians of the potential risks of TORADOL treatment (see BOXED
WARNING, WARNINGS, PRECAUTIONS, and ADVERSE
REACTIONS sections), instruct patients to seek medical advice if they
develop treatment-related adverse events, and advise patients not to give
TORADOL (ketorolac tromethamine) ORAL to other family members and to discard any unused drug.
Remember that the total combined duration of use of TORADOLORAL
and IV or IM dosing of ketorolac tromethamine is not to exceed 5 days in adults.
TORADOL (ketorolac tromethamine) ORAL is not indicated for use in pediatric patients.
Patients should be informed of the following information before initiating
therapy with an NSAID and periodically during the course of ongoing therapy.
Patients should also be encouraged to read the NSAID Medication
Guide that accompanies each prescription dispensed.
- TORADOL (ketorolac tromethamine) , like other NSAIDs, may cause serious CV side effects, such as MI
or stroke, which may result in hospitalization and even death. Although serious
CV events can occur without warning symptoms, patients should be alert for
the signs and symptoms of chest pain, shortness of breath, weakness, slurring
of speech, and should ask for medical advice when observing any indicative
sign or symptoms. Patients should be apprised of the importance of this follow-up
(see WARNINGS: Cardiovascular Effects).
- TORADOL (ketorolac tromethamine) , like other NSAIDs, can cause GI discomfort and rarely, serious
GI side effects, such as ulcers and bleeding, which may result in hospitalization
and even death. Although serious GI tract ulcerations and bleeding can occur
without warning symptoms, patients should be alert for the signs and symptoms
of ulcerations and bleeding, and should ask for medical advice when observing
any indicative sign or symptoms including epigastric pain, dyspepsia, melena,
and hematemesis. Patients should be apprised of the importance of this follow-up
(see WARNINGS: Gastrointestinal Effects - Risk of Ulceration, Bleeding,
and Perforation).
- TORADOL (ketorolac tromethamine) , like other NSAIDs, can cause serious skin side effects such as
exfoliative dermatitis, SJS, and TEN, which may result in hospitalizations
and even death. Although serious skin reactions may occur without warning,
patients should be alert for the signs and symptoms of skin rash and blisters,
fever, or other signs of hypersensitivity such as itching, and should ask
for medical advice when observing any indicative signs or symptoms. Patients
should be advised to stop the drug immediately if they develop any type of
rash and contact their physicians as soon as possible.
- Patients should promptly report signs or symptoms of unexplained weight
gain or edema to their physicians.
- Patients should be informed of the warning signs and symptoms of hepatotoxicity
(eg, nausea, fatigue, lethargy, pruritus, jaundice, right upper quadrant tenderness,
and “flu-like” symptoms). If these occur, patients should be instructed
to stop therapy and seek immediate medical therapy.
- Patients should be informed of the signs of an anaphylactoid reaction (eg,
difficulty breathing, swelling of the face or throat). If these occur, patients
should be instructed to seek immediate emergency help (see WARNINGS).
- In late pregnancy, as with other NSAIDs, TORADOL (ketorolac tromethamine) should be avoided because
it will cause premature closure of the ductus arteriosus.
Laboratory Tests
Because serious GI tract ulcerations and bleeding can occur without warning
symptoms, physicians should monitor for signs or symptoms of GI bleeding. Patients
on long-term treatment with NSAIDs, should have their CBC and a chemistry profile
checked periodically. If clinical signs and symptoms consistent with liver or
renal disease develop, systemic manifestations occur (eg, eosinophilia, rash,
etc.) or if abnormal liver tests persist or worsen, TORADOL (ketorolac tromethamine) should be discontinued.
Carcinogenesis, Mutagenesis and Impairment of Fertility
An 18-month study in mice with oral doses of ketorolac tromethamine at 2 mg/kg/day
(0.9 times the human systemic exposure at the recommended IM or IV dose of 30
mg qid, based on area-under-the-plasma-concentration curve [AUC]), and a 24-month
study in rats at 5 mg/kg/day (0.5 times the human AUC) showed no evidence of
tumorigenicity. Ketorolac tromethamine was not mutagenic in the Ames test, unscheduled
DNA synthesis and repair, and in forward mutation assays.
Ketorolac tromethamine did not cause chromosome breakage in the in vivo mouse
micronucleus assay. At 1590 μg/mL and at higher concentrations, ketorolac
tromethamine increased the incidence of chromosomal aberrations in Chinese hamster
ovarian cells.
Impairment of fertility did not occur in male or female rats at oral doses
of 9 mg/kg (0.9 times the human AUC) and 16 mg/kg (1.6 times the human AUC)
of ketorolac tromethamine, respectively.
Pregnancy
Teratogenic Effects: Pregnancy Category C
Reproduction studies have been performed during organogenesis using daily oral
doses of ketorolac tromethamine at 3.6 mg/kg (0.37 times the human AUC) in rabbits
and at 10 mg/kg (1.0 times the human AUC) in rats. Results of these studies
did not reveal evidence of teratogenicity to the fetus. However, animal reproduction
studies are not always predictive of human response.
Nonteratogenic Effects
Because of the known effects of nonsteroidal anti-inflammatory drugs on the
fetal cardiovascular system (closure of ductus arteriosus), use during pregnancy
(particularly late pregnancy) should be avoided. Oral doses of ketorolac tromethamine
at 1.5 mg/kg (0.14 times the human AUC), administered after gestation Day 17,
caused dystocia and higher pup mortality in rats.
There are no adequate and well-controlled studies of TORADOL (ketorolac tromethamine) in pregnant women.
TORADOL (ketorolac tromethamine) should be used during pregnancy only if the potential benefit justifies
the potential risk to the fetus.
Labor and Delivery
The use of TORADOL (ketorolac tromethamine) is contraindicated in labor and delivery because, through
its prostaglandin synthesis inhibitory effect, it may adversely affect fetal
circulation and inhibit uterine contractions, thus increasing the risk of uterine
hemorrhage (see CONTRAINDICATIONS).
Effects on Fertility
The use of ketorolac tromethamine, as with any drug known to inhibit cyclooxygenase/prostaglandin
synthesis, may impair fertility and is not recommended in women attempting to
conceive. In women who have difficulty conceiving or are undergoing investigation
of infertility, withdrawal of ketorolac tromethamine should be considered.
Nursing Mothers
After a single administration of 10 mg of TORADOL (ketorolac tromethamine) ORAL to humans,
the maximum milk concentration observed was 7.3 ng/mL, and the maximum milk-to-plasma
ratio was 0.037. After 1 day of dosing (qid), the maximum milk concentration
was 7.9 ng/mL, and the maximum milk-to-plasma ratio was 0.025. Because of the
possible adverse effects of prostaglandin-inhibiting drugs on neonates, use
in nursing mothers is contraindicated.
Pediatric Use
TORADOL (ketorolac tromethamine) ORAL is not indicated for use in pediatric patients. The
safety and effectiveness of TORADOL (ketorolac tromethamine) ORAL in pediatric patients below
the age of 17 have not been established.
Geriatric Use ( ≥ 65 years of age)
Because ketorolac tromethamine may be cleared more slowly by the elderly (see
CLINICAL PHARMACOLOGY) who are also more
sensitive to the dose-related adverse effects of NSAIDs (see WARNINGS: Gastrointestinal
Effects - Risk of Ulceration, Bleeding, and Perforation), extreme caution,
reduced dosages (see DOSAGE AND ADMINISTRATION),
and careful clinical monitoring must be used when treating the elderly with
TORADOL (ketorolac tromethamine).
Interaction with other medicinal products and other forms of interaction
SIDE EFFECTS
Adverse reaction rates increase with higher doses of TORADOL (ketorolac tromethamine). Practitioners
should be alert for the severe complications of treatment with TORADOL (ketorolac tromethamine) , such
as GI ulceration, bleeding and perforation, postoperative bleeding, acute renal
failure, anaphylactic and anaphylactoid reactions and liver failure (see BOXED
WARNING, WARNINGS, PRECAUTIONS,
and DOSAGE AND ADMINISTRATION). These NSAID-related
complications can be serious in certain patients for whom TORADOL (ketorolac tromethamine) is indicated,
especially when the drug is used inappropriately.
In patients taking TORADOL (ketorolac tromethamine) or other NSAIDs in clinical trials, the most frequently
reported adverse experiences in approximately 1% to 10% of patients are:
| Gastrointestinal (GI) experiences including:
|
| abdominal pain* |
constipation/diarrhea |
dyspepsia* |
| flatulence |
GI fullness |
GI ulcers (gastric/duodenal) |
| gross bleeding/perforation |
Heartburn |
nausea* |
| stomatitis |
Vomiting |
|
| Other experiences: |
| abnormal renal function |
Anemia |
dizziness |
| drowsiness |
Edema |
elevated liver enzymes |
| headaches* |
Hypertension |
increased bleeding time |
| injection site pain |
Pruritus |
purpura |
| rashes |
Tinnitus |
sweating |
| *Incidence greater than 10% |
Additional adverse experiences reported occasionally ( < 1% in patients taking
TORADOL (ketorolac tromethamine) or other NSAIDs in clinical trials) include:
Body as a Whole: fever, infections, sepsis
Cardiovascular: congestive heart failure, palpitation, pallor, tachycardia,
syncope
Dermatologic: alopecia, photosensitivity, urticaria
Gastrointestinal: anorexia, dry mouth, eructation, esophagitis, excessive
thirst, gastritis, glossitis, hematemesis, hepatitis, increased appetite, jaundice,
melena, rectal bleeding
Hemic and Lymphatic: ecchymosis, eosinophilia, epistaxis, leukopenia,
thrombocytopenia
Metabolic and Nutritional: weight change
Nervous System: abnormal dreams, abnormal thinking, anxiety, asthenia,
confusion, depression, euphoria, extrapyramidal symptoms, hallucinations, hyperkinesis,
inability to concentrate, insomnia, nervousness, paresthesia, somnolence, stupor,
tremors, vertigo, malaise
Reproductive, female: infertility
Respiratory: asthma, cough, dyspnea, pulmonary edema, rhinitis
Special Senses: abnormal taste, abnormal vision, blurred vision, hearing
loss
Urogenital: cystitis, dysuria, hematuria, increased urinary frequency,
interstitial nephritis, oliguria/polyuria, proteinuria, renal failure, urinary
retention
Other rarely observed reactions (reported from postmarketing experience in
patients taking TORADOL (ketorolac tromethamine) or other NSAIDs) are:
Body as a Whole: angioedema, death, hypersensitivity reactions such
as anaphylaxis, anaphylactoid reaction, laryngeal edema, tongue edema (see WARNINGS),
myalgia
Cardiovascular: arrhythmia, bradycardia, chest pain, flushing, hypotension,
myocardial infarction, vasculitis
Dermatologic: exfoliative dermatitis, erythema multiforme, Lyell's syndrome,
bullous reactions including Stevens-Johnson syndrome and toxic epidermal necrolysis
Gastrointestinal: acute pancreatitis, liver failure, ulcerative stomatitis,
exacerbation of inflammatory bowel disease (ulcerative colitis, Crohn's disease)
Hemic and Lymphatic: agranulocytosis, aplastic anemia, hemolytic anemia,
lymphadenopathy, pancytopenia, postoperative wound hemorrhage (rarely requiring
blood transfusion - see BOXED WARNING, WARNINGS,
and PRECAUTIONS)
Metabolic and Nutritional: hyperglycemia, hyperkalemia, hyponatremia
Nervous System: aseptic meningitis, convulsions, coma, psychosis
Respiratory: bronchospasm, respiratory depression, pneumonia
Special Senses: conjunctivitis
Urogenital: flank pain with or without hematuria and/or azotemia, hemolytic
uremic syndrome
Postmarketing Surveillance Study
A large postmarketing observational, nonrandomized study, involving approximately
10,000 patients receiving ketorolac tromethamineIV/IM, demonstrated
that the risk of clinically serious gastrointestinal (GI) bleeding was dose-dependent
(see Tables 3A and 3B). This was particularly true in elderly patients who received
an average daily dose greater than 60 mg/day of ketorolac tromethamineIV/IM
(see Table 3A).
Table 3 Incidence of Clinically Serious GI Bleeding as Related
to Age, Total Daily Dose, and History of GI Perforation, Ulcer, Bleeding (PUB)
After up to 5 Days of Treatment With Ketorolac TromethamineIV/IMA.
| A. Adult Patients Without History of PUB
|
| Age of Patients |
Total Daily Dose of Ketorolac TromethamineIV/IM |
| |
≤ 60 mg |
> 60 to 90 mg |
> 90 to 120 mg |
> 120 mg |
| < 65 years of age |
0.4% |
0.4% |
0.9% |
4.6% |
| ≥ 65 years of age |
1.2% |
2.8% |
2.2% |
7.7% |
| B. Adult Patients With History of PUB |
| Age of Patients |
Total Daily Dose of Ketorolac TromethamineIV/IM |
| |
≤ 60 mg |
> 60 to 90 mg |
> 90 to 120 mg |
> 120 mg |
| < 65 years of age |
2.1% |
4.6% |
7.8% |
15.4% |
| ≥ 65 years of age |
4.7% |
3.7% |
2.8% |
25.0% |
DRUG INTERACTIONS
Ketorolac is highly bound to human plasma protein (mean 99.2%). There is no
evidence in animal or human studies that TORADOL (ketorolac tromethamine) induces or inhibits hepatic
enzymes capable of metabolizing itself or other drugs.
Warfarin, Digoxin, Salicylate, and Heparin
The in vitro binding of warfarin to plasma proteins is only slightly
reduced by ketorolac tromethamine (99.5% control vs 99.3%) when ketorolac plasma
concentrations reach 5 to 10 μg/mL. Ketorolac does not alter digoxin
protein binding. In vitro studies indicate that, at therapeutic concentrations
of salicylate (300 μg/mL), the binding of ketorolac was reduced
from approximately 99.2% to 97.5%, representing a potential twofold increase
in unbound ketorolac plasma levels. Therapeutic concentrations of digoxin,
warfarin, ibuprofen, naproxen, piroxicam, acetaminophen, phenytoin and
tolbutamide did not alter ketorolac tromethamine protein binding.
In a study involving 12 adult volunteers, TORADOL (ketorolac tromethamine) ORAL was coadministered
with a single dose of 25 mg warfarin, causing no significant changes
in pharmacokinetics or pharmacodynamics of warfarin. In another study, ketorolac
tromethamine dosed IV or IM was given with two doses of 5000 U of heparin
to 11 healthy volunteers, resulting in a mean template bleeding time of 6.4
minutes (3.2 to 11.4 min) compared to a mean of 6.0 minutes (3.4 to 7.5 min)
for heparin alone and 5.1 minutes (3.5 to 8.5 min) for placebo. Although these
results do not indicate a significant interaction between TORADOL (ketorolac tromethamine) and warfarin
or heparin, the administration of TORADOL (ketorolac tromethamine) to patients taking anticoagulants
should be done extremely cautiously, and patients should be closely monitored
(see WARNINGS and PRECAUTIONS:
Hematologic Effect).
The effects of warfarin and NSAIDs, in general, on GI bleeding are synergistic,
such that the users of both drugs together have a risk of serious GI bleeding
higher than the users of either drug alone.
Aspirin
When TORADOL (ketorolac tromethamine) is administered with aspirin, its protein binding is reduced,
although the clearance of free TORADOL (ketorolac tromethamine) is not altered. The clinical significance
of this interaction is not known; however, as with other NSAIDs, concomitant
administration of ketorolac tromethamine and aspirin is not generally recommended
because of the potential of increased adverse effects.
Diuretics
Clinical studies, as well as postmarketing observations, have shown that TORADOL (ketorolac tromethamine)
can reduce the natriuretic effect of furosemide and thiazides in some patients.
This response has been attributed to inhibition of renal prostaglandin synthesis.
During concomitant therapy with NSAIDs, the patient should be observed closely
for signs of renal failure (see WARNINGS: Renal
Effects), as well as to assure diuretic efficacy.
Probenecid
Concomitant administration of TORADOL (ketorolac tromethamine) ORAL and probenecid
resulted in decreased clearance and volume of distribution of ketorolac and
significant increases in ketorolac plasma levels (total AUC increased approximately
threefold from 5.4 to 17.8 μg/h/mL) and terminal half-life increased approximately
twofold from 6.6 to 15.1 hours. Therefore, concomitant use of TORADOL (ketorolac tromethamine) and probenecid
is contraindicated.
Lithium
NSAIDs have produced an elevation of plasma lithium levels and a reduction
in renal lithium clearance. The mean minimum lithium concentration increased
15% and the renal clearance was decreased by approximately 20%. These effects
have been attributed to inhibition of renal prostaglandin synthesis by the NSAID.
Thus, when NSAIDs and lithium are administered concurrently, subjects should
be observed carefully for signs of lithium toxicity.
Methotrexate
NSAIDs have been reported to competitively inhibit methotrexate accumulation
in rabbit kidney slices. This may indicate that they could enhance the toxicity
of methotrexate. Caution should be used when NSAIDs are administered concomitantly
with methotrexate.
ACE Inhibitors/Angiotension II Receptor Antagonists
Concomitant use of ACE inhibitors and/or angiotension II receptor
antagonists may increase the risk of renal impairment, particularly
in volume-depleted patients.
Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE
inhibitors and/or angiotension II receptor antagonists. This interaction should
be given consideration in patients taking NSAIDs concomitantly with ACE inhibitors
and/or angiotension II receptor antagonists.
Antiepileptic Drugs
Sporadic cases of seizures have been reported during concomitant use of TORADOL (ketorolac tromethamine)
and antiepileptic drugs (phenytoin, carbamazepine).
Psychoactive Drugs
Hallucinations have been reported when TORADOL (ketorolac tromethamine) was used in patients taking
psychoactive drugs (fluoxetine, thiothixene, alprazolam).
Pentoxifylline
When ketorolac tromethamine is administered concurrently with pentoxifylline,
there is an increased tendency to bleeding.
Nondepolarizing Muscle Relaxants
In postmarketing experience there have been reports of a possible interaction
between ketorolac tromethamineIV/IM and nondepolarizing muscle
relaxants that resulted in apnea. The concurrent use of ketorolac tromethamine
with muscle relaxants has not been formally studied.
Selective Serotonin Reuptake Inhibitors (SSRIs)
There is an increased risk of gastrointestinal bleeding when selective serotonin
reuptake inhibitors (SSRIs) are combined with NSAIDs. Caution should be used
when NSAIDs are administered concomitantly with SSRIs.