Q-tussin cf

Contraindications

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What is the most important information I should know about Q-Tussin CF?

Hyperthyroidism; HTN & coronary disease. Concurrent use or use w/in 2 wk of MAOI therapy. Childn <2 yr.

Undesirable effects

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What are the possible side effects of Q-Tussin CF?

Dizziness, headache, nausea, nervousness, or trouble sleeping may occur. If any of these effects persist or worsen, contact your doctor or pharmacist promptly.

If your doctor has prescribed this drug, remember that your doctor has prescribed it because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor if any of these unlikely but serious side effects occur: mental/mood changes (e.g., confusion, hallucinations), shaking (tremors), weakness.

Tell your doctor if any of these rare but very serious side effects occur: fast/slow/irregular heartbeat.

A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Therapeutic indications

An indication is a term used for the list of condition or symptom or illness for which the medicine is prescribed or used by the patient. For example, acetaminophen or paracetamol is used for fever by the patient, or the doctor prescribes it for a headache or body pains. Now fever, headache and body pains are the indications of paracetamol. A patient should be aware of the indications of medications used for common conditions because they can be taken over the counter in the pharmacy meaning without prescription by the Physician.

used to treat symptoms caused by the common cold, flu, allergies, hay fever, or other breathing illnesses (e.g., sinusitis, bronchitis). Dextromethorphan (Q-Q-Tussin CF) is a cough suppressant that affects a certain part of the brain (cough center), reducing the urge to cough. Decongestants help relieve stuffy nose symptoms. Antihistamines relieve watery eyes, itchy eyes/nose/throat, runny nose, and sneezing.

There are many brands and forms of Q-Tussin CF (Phenylephrine (Q-Q-Tussin CF)) available. Not all brands are listed on this leaflet.

Dextromethorphan (Q-Q-Tussin CF) is a cough suppressant that affects signals in the brain that trigger cough reflex.

Guaifenesin (Q-Q-Tussin CF) is an expectorant that loosens congestion in your chest and throat.

Phenylephrine (Q-Q-Tussin CF) is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Q-Tussin CF (Phenylephrine (Q-Q-Tussin CF)) is a combination medicine used to treat cough, stuffy nose, and chest congestion caused by allergies, the common cold, or the flu.

This medicine will not treat a cough that is caused by smoking, asthma, or emphysema.

Q-Tussin CF (Phenylephrine (Q-Q-Tussin CF)) may also be used for purposes not listed in this medication guide.

Name of the medicinal product

Q-Tussin CF

Special warnings and precautions for use

There are specific as well as general uses of a drug or medicine. A medicine can be used to prevent a disease, treat a disease over a period or cure a disease. It can also be used to treat the particular symptom of the disease. The drug use depends on the form the patient takes it. It may be more useful in injection form or sometimes in tablet form. The drug can be used for a single troubling symptom or a life-threatening condition. While some medications can be stopped after few days, some drugs need to be continued for prolonged period to get the benefit from it.

Use Q-Tussin CF controlled-release and sustained-release tablets as directed by your doctor. Check the label on the medicine for exact dosing instructions.

• Take Q-Tussin CF controlled-release and sustained-release tablets by mouth with or without food.
• Drink plenty of water while taking Q-Tussin CF controlled-release and sustained-release tablets.
• Swallow Q-Tussin CF controlled-release and sustained-release tablets whole. Do not break, crush, or chew before swallowing. Some brands of Q-Tussin CF controlled-release and sustained-release tablets may be broken in half before taking. If you have difficulty swallowing the whole tablet, ask your pharmacist if your brand of medicine may be broken in half.
• If you miss a dose of Q-Tussin CF controlled-release and sustained-release tablets, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use Q-Tussin CF controlled-release and sustained-release tablets.

Dosage (Posology) and method of administration

Usual Adult Dose for Cough and Nasal Congestion:

Dextromethorphan (Q-Q-Tussin CF) 15 mg/Guaifenesin (Q-Q-Tussin CF) 100 mg/Phenylephrine (Q-Q-Tussin CF) 5 mg/5 mL:

10 mL orally every 6 hours not to exceed 40 mL daily.

Dextromethorphan (Q-Q-Tussin CF) 15 mg/Guaifenesin (Q-Q-Tussin CF) 300 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg/5 mL:

10 mL orally every 6 hours not to exceed 40 mL daily.

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 100 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg/5 mL:

5 mL orally every 4 to 6 hours not to exceed 30 mL daily.

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 200 mg/Phenylephrine (Q-Q-Tussin CF) 5 mg/5 mL:

10 mL orally every 8 hours not to exceed 30 mL daily

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 800 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, extended release:

1 to 1.5 tablets orally every 12 hours not to exceed 3 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 28 mg/Guaifenesin (Q-Q-Tussin CF) 388 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg oral tablets:

1 tablet orally every 4 hours not to exceed 6 tablets in 24 hours

Dextromethorphan (Q-Q-Tussin CF) 28 mg/Guaifenesin (Q-Q-Tussin CF) 388 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg /5 mL oral liquid:

5 mL orally every 6 to 8 hours not to exceed 4 doses 24 hours

Dextromethorphan (Q-Q-Tussin CF) 30 mg/Guaifenesin (Q-Q-Tussin CF) 900 mg/Phenylephrine (Q-Q-Tussin CF) 30 mg oral tablets, extended release:

1 tablet orally every 12 hours not to exceed 2 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 25 mg/Guaifenesin (Q-Q-Tussin CF) 175 mg/Phenylephrine (Q-Q-Tussin CF) 12.5 mg/5 mL:

5 mL orally four times daily.

Dextromethorphan (Q-Q-Tussin CF) 25 mg/Guaifenesin (Q-Q-Tussin CF) 550 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, and Dextromethorphan (Q-Q-Tussin CF) 25 mg/Guaifenesin (Q-Q-Tussin CF) 600 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, extended release:

1 to 2 tablets orally every 12 hours not to exceed 3 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 30 mg/Guaifenesin (Q-Q-Tussin CF) 1000 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, extended release:

1 tablet orally every 12 hours not to exceed 2 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 30 mg/Guaifenesin (Q-Q-Tussin CF) 1200 mg/Phenylephrine (Q-Q-Tussin CF) 30 mg oral tablets, extended release:

1 tablet orally every 12 hours not to exceed 2 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 30 mg/Guaifenesin (Q-Q-Tussin CF) 600 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg oral tablets, extended release:

1 to 2 tablets orally every 12 hours not to exceed 4 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 40 mg/Guaifenesin (Q-Q-Tussin CF) 200 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg/10 mL extended release suspension:

10 mL orally every 12 hours not to exceed 2 doses daily.

Dextromethorphan (Q-Q-Tussin CF) 45 mg/Guaifenesin (Q-Q-Tussin CF) 1200 mg/Phenylephrine (Q-Q-Tussin CF) 25 mg oral tablets, extended release:

1 tablet orally every 12 hours not to exceed 2 doses daily.

Dextromethorphan (Q-Q-Tussin CF) 60 mg/Guaifenesin (Q-Q-Tussin CF) 600 mg/Phenylephrine (Q-Q-Tussin CF) 40 mg oral tablets, extended release:

1 tablet orally every 12 hours not to exceed 2 doses daily.

Dextromethorphan (Q-Q-Tussin CF) 60 mg/Guaifenesin (Q-Q-Tussin CF) 1000 mg/Phenylephrine (Q-Q-Tussin CF) 40 mg oral tablets, extended release:

1 tablet orally every 12 hours not to exceed 2 doses daily.

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 800 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, extended release:

1 to 1.5 tablets orally every 12 hours not to exceed 3 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 30 mg/Guaifenesin (Q-Q-Tussin CF) 600 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, extended release:

1 or 2 tablets orally twice a day not to exceed 2 doses daily.

Q-Tussin CF 14 mg-288 mg-7 mg oral capsule:

1 capsule orally every 4 to 6 hours.

Dextromethorphan (Q-Q-Tussin CF) 15 mg/Guaifenesin (Q-Q-Tussin CF) 380 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg oral capsule:

1 capsule orally every 4 hours not to exceed 6 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 400 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg oral tablet:

1 tablet orally every 4 to 6 hours not to exceed 4 tablets in 24 hours.

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 200 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg/10 mL oral liquid:

1 prefilled spoon (10 mL) orally every 4 hours.

Dextromethorphan (Q-Q-Tussin CF) 5 mg/Guaifenesin (Q-Q-Tussin CF) 50 mg/Phenylephrine (Q-Q-Tussin CF) 2.5 mg/5 mL oral liquid:

20 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

Q-Tussin CF 15 mg-350 mg-12 mg oral tablet:

1 tablet orally every 6 hours, not to exceed 4 tablets in 24 hours.

Q-Tussin CF 10 mg-200 mg-5 mg/5 mL oral liquid:

10 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

Q-Tussin CF 20 mg-400 mg-10 mg/5 mL oral liquid:

5 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

Q-Tussin CF 5 mg-75 mg-2.5 mg/5 mL oral liquid:

20 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

Q-Tussin CF 20 mg-400 mg-10 mg/20 mL oral liquid:

20 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

Usual Pediatric Dose for Cough and Nasal Congestion:

Dextromethorphan (Q-Q-Tussin CF) 5 mg/Guaifenesin (Q-Q-Tussin CF) 50 mg/Phenylephrine (Q-Q-Tussin CF) 2.5 mg/5 mL oral liquid:

over 6 months to less than 9 months: 0.75 mL orally 4 times daily.

over 9 months to 18 months: 1 mL orally 4 times daily.

Dextromethorphan (Q-Q-Tussin CF) 15 mg/Guaifenesin (Q-Q-Tussin CF) 100 mg/Phenylephrine (Q-Q-Tussin CF) 5 mg/5 mL:

over 2 yrs to less than 6 yrs: 2.5 mL orally every 6 hours not to exceed 10 mL daily.

over 6 yrs to less than 12 yrs: 5 mL orally every 6 hours not to exceed 20 mL daily.

over 12 yrs: 10 mL orally every 6 hours not to exceed 40 mL daily.

Dextromethorphan (Q-Q-Tussin CF) 15 mg/Guaifenesin (Q-Q-Tussin CF) 300 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg/5 mL:

over 6 yrs to less than 12 yrs: 5 mL orally every 6 hours not to exceed 20 mL daily.

over 12 yrs: 10 mL orally every 6 hours not to exceed 40 mL daily.

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 100 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg/5 mL:

over 2 yrs to less than 6 yrs: 1.25 mL orally every 4 to 6 hours not to exceed 7.5 mL daily.

over 6 yrs to less than 12 yrs: 2.5 mL orally every 4 to 6 hours not to exceed 15 mL daily.

over 12 yrs: 5 mL orally every 4 to 6 hours not to exceed 30 mL daily.

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 200 mg/Phenylephrine (Q-Q-Tussin CF) 5 mg/5 mL:

over 2 yrs to less than 6 yrs: 2.5 mL orally every 8 hours not to exceed 7.5 mL daily.

over 6 yrs to less than 12 yrs: 5 mL orally every 8 hours not to exceed 15 mL daily.

over 12 yrs: 10 mL orally every 8 hours not to exceed 30 mL daily.

Dextromethorphan (Q-Q-Tussin CF) 25 mg/Guaifenesin (Q-Q-Tussin CF) 175 mg/Phenylephrine (Q-Q-Tussin CF) 12.5 mg/5 mL oral syrup:

over 2 yrs to less than 6 yrs: 1.25 mL orally four times daily.

over 6 yrs to less than 12 yrs: 2.5 mL orally four times daily.

over 12 yrs: 5 mL orally four times daily.

Dextromethorphan (Q-Q-Tussin CF) 23 mg/Guaifenesin (Q-Q-Tussin CF) 600 mg/Phenylephrine (Q-Q-Tussin CF) 9 mg oral tablets, extended release:

over 6 yrs to less than 12 yrs: one half tablet orally every 12 hours not to exceed 1 tablet daily

over 12 yrs: 1 or 2 tablets orally every 12 hours not to exceed 4 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 800 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, extended release:

over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.

over 12 yrs: 1 to 1.5 tablets orally every 12 hours not to exceed 3 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 25 mg/Guaifenesin (Q-Q-Tussin CF) 550 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, extended release:

over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.

over 12 yrs: 1 to 2 tablets orally every 12 hours not to exceed 3 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 25 mg/Guaifenesin (Q-Q-Tussin CF) 600 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, extended release:

over 2 yrs to less than 6 yrs: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.

over 6 yrs to less than 12 yrs: 1/2 to 1 tablet orally every 12 hours not to exceed 1 1/2 tablet daily.

over 12 yrs: 1 to 2 tablets orally every 12 hours not to exceed 3 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 30 mg/Guaifenesin (Q-Q-Tussin CF) 1200 mg/Phenylephrine (Q-Q-Tussin CF) 30 mg oral tablets, extended release:

over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.

over 12 yrs: 1 tablet orally every 12 hours not to exceed 2 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 30 mg/Guaifenesin (Q-Q-Tussin CF) 600 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg oral tablets, extended release:

over 6 yrs to less than 12 yrs: 1 tablet orally every 12 hours not to exceed 2 tablets daily.

over 12 yrs: 1 to 2 tablets orally every 12 hours not to exceed 4 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 30 mg/Guaifenesin (Q-Q-Tussin CF) 1000 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, extended release:

over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.

over 12 yrs: 1 tablet orally every 12 hours not to exceed 2 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 40 mg/Guaifenesin (Q-Q-Tussin CF) 200 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg/10 mL:

over 3 yrs to less than 6 yrs: 2.5 mL orally every 12 hours not to exceed 5 mL daily.

over 6 yrs to less than 12 yrs: 5 mL orally every 12 hours not to exceed 10 mL daily.

over 12 yrs: 10 mL orally every 12 hours not to exceed 20 mL daily.

Dextromethorphan (Q-Q-Tussin CF) 45 mg/Guaifenesin (Q-Q-Tussin CF) 1200 mg/Phenylephrine (Q-Q-Tussin CF) 25 mg oral tablets, extended release:

over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 2 doses daily.

over 12 yrs: 1 tablet orally every 12 hours not to exceed 2 doses daily.

Dextromethorphan (Q-Q-Tussin CF) 60 mg/Guaifenesin (Q-Q-Tussin CF) 600 mg/Phenylephrine (Q-Q-Tussin CF) 40 mg oral tablets, extended release:

over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 2 doses daily.

over 12 yrs: 1 tablet orally every 12 hours not to exceed 2 doses daily.

Dextromethorphan (Q-Q-Tussin CF) 60 mg/Guaifenesin (Q-Q-Tussin CF) 1000 mg/Phenylephrine (Q-Q-Tussin CF) 40 mg oral tablets, extended release:

over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 2 doses daily.

over 12 yrs: 1 tablet orally every 12 hours not to exceed 2 doses daily.

Dextromethorphan (Q-Q-Tussin CF) 5 mg/Guaifenesin (Q-Q-Tussin CF) 100 mg/Phenylephrine (Q-Q-Tussin CF) 2.5 mg/5 mL:

over 2 yrs to less than 6 yrs and 11 kg to 21 kg: 2.5 mL orally every 4 hours not to exceed 15 mL daily.

Dextromethorphan (Q-Q-Tussin CF) 30 mg/Guaifenesin (Q-Q-Tussin CF) 900 mg/Phenylephrine (Q-Q-Tussin CF) 30 mg oral tablets, extended release:

6 years to 12 years: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.

12 years or older: 1 tablet orally every 12 hours not to exceed 2 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 30 mg/Guaifenesin (Q-Q-Tussin CF) 600 mg/Phenylephrine (Q-Q-Tussin CF) 20 mg oral tablets, extended release:

12 years or older: 1 or 2 tablets orally twice a day not to exceed 2 doses daily.

Q-Tussin CF 14 mg-288 mg-7 mg oral capsule:

over 12 yrs: 1 capsule orally every 4 to 6 hours.

Dextromethorphan (Q-Q-Tussin CF) 15 mg/Guaifenesin (Q-Q-Tussin CF) 380 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg oral capsule:

12 years or older: 1 capsule orally every 4 hours not to exceed 6 tablets daily.

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 400 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg oral tablet:

6 years to 12 years: 1/2 tablet orally every 4 to 6 hours not to exceed 2 tablets in 24 hours.

over 12 yrs 1 tablet orally every 4 to 6 hours not to exceed 4 tablets in 24 hours.

Dextromethorphan (Q-Q-Tussin CF) 20 mg/Guaifenesin (Q-Q-Tussin CF) 200 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg/10 mL oral liquid:

12 years or older: 1 prefilled spoon (10 mL) orally every 4 hours.

Dextromethorphan (Q-Q-Tussin CF) 5 mg/Guaifenesin (Q-Q-Tussin CF) 50 mg/Phenylephrine (Q-Q-Tussin CF) 2.5 mg/5 mL oral liquid:

4 years to 5 years: 5 mL orally every 4 hours not to exceed 6 doses in 24 hours.

6 years to 11 years: 10 mL orally every 4 hours not to exceed 6 doses in 24 hours.

12 years or older: 20 mL orally every 4 hours not to exceed 6 doses in 24 hours.

Q-Tussin CF 15 mg-350 mg-12 mg oral tablet:

12 years or older: 1 tablet orally every 6 hours, not to exceed 4 tablets in 24 hours.

Q-Tussin CF 10 mg-200 mg-5 mg/5 mL oral liquid:

12 years or older: 10 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

Q-Tussin CF 5 mg-100 mg-2.5 mg/5 mL oral liquid:

4 years to 5 years: 5 mL orally every 4 hours not to exceed 6 doses in 24 hours.

6 years to 11 years: 10 mL orally every 4 hours not to exceed 6 doses in 24 hours.

Q-Tussin CF 20 mg-400 mg-10 mg/5 mL oral liquid:

12 years or older: 5 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

Q-Tussin CF 5 mg-75 mg-2.5 mg/5 mL oral liquid:

2 years to 5 years: 5 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

6 years to 11 years: 10 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

12 years or older: 20 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

Q-Tussin CF 20 mg-400 mg-10 mg/20 mL oral liquid:

12 years or older: 20 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.

Dextromethorphan (Q-Q-Tussin CF) 28 mg/Guaifenesin (Q-Q-Tussin CF) 388 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg oral tablets:

Over 12 years of age: 1 tablet orally every 4 hours not to exceed 6 tablets in 24 hours

6 years to under 12 years of age: 1/2 tablet orally every 4 hours not to exceed 3 tablets in 24 hours

Dextromethorphan (Q-Q-Tussin CF) 28 mg/Guaifenesin (Q-Q-Tussin CF) 388 mg/Phenylephrine (Q-Q-Tussin CF) 10 mg /5 mL oral liquid:

12 years and over: 5 mL orally every 6 to 8 hours not to exceed 4 doses 24 hours

6 years to under 12 years of age: 2.5 mL orally every 6 to 8 hours not to exceed 4 doses 24 hours

2 years to 6 years of age: 1.25 mL orally every 6 to 8 hours not to exceed 4 doses 24 hours

Dextromethorphan (Q-Q-Tussin CF) 7.5 mg/Guaifenesin (Q-Q-Tussin CF) 88 mg/Phenylephrine (Q-Q-Tussin CF) 2.5 mg /1 mL oral liquid:

6 years to under 12 years of age: 2 mL orally every 6 to 8 hours not to exceed 4 doses 24 hours

2 years to 6 years of age: 1 mL orally every 6 to 8 hours not to exceed 4 doses 24 hours

Interaction with other medicinal products and other forms of interaction

See also:
What other drugs will affect Q-Tussin CF?

If you are taking this medication under your doctor's direction, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.

Taking certain MAO inhibitors with this medication may cause a serious (possibly fatal) drug interaction. Avoid taking isocarboxazid, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, selegiline, or tranylcypromine during treatment with this medication. Most MAO inhibitors should also not be taken for two weeks before treatment with this medication. Ask your doctor when to start or stop taking this medication.

Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially: beta blockers (e.g., metoprolol, atenolol), guanethidine, certain inhaled anesthetics (e.g., halothane), methyldopa, reserpine, tricyclic antidepressants (e.g., amitriptyline, desipramine).

Guaifenesin (Q-Q-Tussin CF) is available in both prescription and nonprescription products. Check the labels on all your medications carefully to make sure you are not taking more than one Guaifenesin (Q-Q-Tussin CF)-containing product.

Check the labels on all your medicines (e.g., cough-and-cold products, diet aids) because they may contain ingredients that could increase your heart rate or blood pressure. Ask your pharmacist about the safe use of those products.

This medication may interfere with certain medical/laboratory tests (including urine 5-HIAA/VMA levels, brain scan for Parkinson's disease), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.

This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.