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Exocin

Exocin contains ofloxacin, a bactericidal antibacterial agent, and is registered in 12 countries. Its footprint spans Western and Southern Europe alongside selected markets in Asia and Africa, which makes it a brand travellers might encounter under the same name in places as varied as Portugal, Thailand, Ireland, South Africa, and India.

Ofloxacin belongs to a broader family of antibacterials used for systemic and ophthalmic indications. Exocin is prescribed across a range of bacterial infections — including respiratory infections such as bronchitis and tuberculosis, urogenital conditions such as prostatitis, urethritis, and cervicitis, and ocular infections such as pink eye and keratoconjunctivitis. The structured indication block further down this page lists each registered use as recognised by national regulators in the markets where Exocin is sold.

Because the same active ingredient circulates internationally under several different brand names, a traveller or expatriate who has been prescribed Exocin in one country will not always find the identical brand elsewhere — but ofloxacin-containing products are widely available in regulated pharmacies around the world. The form matters too: ophthalmic preparations and systemic preparations of ofloxacin are not interchangeable, and a pharmacist abroad will need to know which one was originally prescribed.

Other antibacterial agents within the same broader pharmacological class are also marketed internationally under various molecules and brand names, although they are not freely interchangeable with ofloxacin. A local pharmacist familiar with the regional formulary can usually identify an ofloxacin product available in the destination country, but any decision to start, stop, or substitute an antibacterial should be made together with a prescribing healthcare provider who knows the patient's history and the nature of the infection being treated.

How does this drug class actually work?
Read the plain-language explainer in Pharmacology Academy (Antibiotics) →

Overdose

In the event of overdose, symptomatic treatment should be implemented. ECG monitoring should be undertaken, because of the possibility of QT interval prolongation.

Shelf life

2 years unopened.

Discard 28 days after first opening.

Incompatibilities

None known.

List of excipients

Benzalkonium chloride (EP) 0.005% w/v

Sodium chloride (EP) 0.9% w/v

Sodium hydroxide (for pH adjustment)

Hydrochloric acid (for pH adjustment)

Purified water (EP)

Undesirable effects

General

Serious reactions after use of systemic ofloxacin are rare and most symptoms are reversible. Since a small amount of ofloxacin is systemically absorbed after topical administration, side-effects reported with systemic use could possibly occur.

Frequency categories: Very common (>1/10); Common (>1/100 to <1/10); Uncommon (>1/1,000 to <1/100); Rare (>1/10,000 to <1/1,000); Very rare (<1/10,000) and not known (cannot be estimated from the available data):

Immune System Disorders

Not Known: Hypersensitivity reaction including signs or symptoms of Eye allergy (such as Eye pruritus and Eyelid pruritus) and Anaphylactic reactions (such as angioedema, dyspnea, anaphylactic shock, oropharyngeal swelling, facial oedema and tongue swollen)

Nervous System Disorders

Not known: Dizziness

Eye Disorders

Common: Eye irritation; Ocular discomfort

Not known: Keratitis; Conjunctivitis; Vision blurred; Photophobia; Eye oedema; Foreign body sensation in eyes; Lacrimation increased; Dry eye; Eye pain; Ocular hyperaemia; Periorbital oedema (including eyelid oedema)

Cardiac disorders

Not known: ventricular arrhythmia and torsades de pointes (reported predominantly in patients with risk factors for QT prolongation); ECG QT prolonged

Gastrointestinal Disorders

Not known: Nausea

Skin and Subcutaneous Tissue Disorders

Not Known: Stevens-Johnson syndrome; Toxic epidermal necrolysis

Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via:

Yellow Card Scheme

Website: www.mhra.gov.uk/yellowcard

Preclinical safety data

There are no toxicological safety issues with this product in man as the level of systemic absorption from topical ocular administration of ofloxacin is minimal.

Animal studies in the dog have found cases of arthropathy in weight bearing joints of juvenile animals after high oral doses of certain quinolones. However, these findings have not been seen in clinical studies and their relevance to man is unknown.

Pharmacodynamic properties

Pharmacotherapeutic group: Ophthalmologicals, anti-infectives, fluoroquinolones

ATC code: S01AE01.

Ofloxacin is a synthetic fluorinated 4-quinolone antibacterial agent with activity against a broad spectrum of Gram negative and to a lesser degree Gram positive organisms.

Ofloxacin has been shown to be active against most strains of the following organisms both in vitro and clinically in ophthalmic infections. Clinical trial evidence of the efficacy of EXOCIN® against S. pneumoniae was based on a limited number of isolates.

Gram-negative bacteria: Acinetobacter calcoaceticus var. anitratum, and A. calcoaceticus var. iwoffi; Enterobacter Sp. including E. cloacae; Haemophilis Sp, including H. influenza and H. aegyptius; Klebsiella Sp., including K. Pneumoniae; Moraxella Sp., Morganella morganii; Proteus Sp., including P. Mirabilis; Pseudomonas Sp.; including P. Aeruginosa, P. cepacia, and P. fluoroscens; and Serratia Sp., including S. marcescens.

Gram-positive bacteria: Bacillus Sp.; Corynebacterium Sp.; Micrococcus Sp.; Staphylococcus Sp., including S. aureus and S. epidermidis; Streptococcus Sp., including S. Pneumoniae (see above), S. viridans and Beta-haemolytic.

The primary mechanisms of action is through inhibition of bacterial DNA gyrase, the enzyme responsible for maintaining the structure of DNA.

Ofloxacin is not subject to degradation by beta-lactamase enzymes nor is it modified by enzymes such as aminoglycoside adenylases or phosphorylases, or chloramphenicol acetyltransferase.

Pharmacokinetic properties

After ophthalmic instillation, ofloxacin is well maintained in the tear-film.

In a healthy volunteer study, mean tear film concentrations of ofloxacin measured four hours after topical dosing (9.2 µg/g) were higher than the 2µg/ml minimum concentration of ofloxacin necessary to inhibit 90% of most ocular bacterial strains (MIC90) in-vitro.

Maximum serum ofloxacin concentrations after ten days of topical dosing were about 1000 times lower than those reported after standard oral doses of ofloxacin, and no systemic side-effects attributable to topical ofloxacin were observed.

Date of revision of the text

April 2016

Marketing authorisation holder

Allergan Ltd

Marlow International

The Parkway

Marlow

Bucks SL7 1YL

United Kingdom

Special precautions for storage

Do not store above 25°C.

Nature and contents of container

A bottle and an applicator tip of low density polyethylene (LDPE) and medium or high impact polystyrene cap.

The bottle contains 5 ml or 10 ml of suspension.

Not all pack sizes may be marketed.

Marketing authorisation number(s)

PL 00426/0070

Effects on ability to drive and use machines

No studies on the effects on the ability to drive and use machines have been performed.

Transient blurring of vision may occur on instillation of eye drops. Do not drive or operate hazardous machinery unless vision is clear.

Special precautions for disposal and other handling

There is no special requirement for disposal.

Any unused product or waste material should be disposed of in accordance with local requirements.

Date of first authorisation/renewal of the authorisation

Date of first authorisation: 26th October 1992

Date of last renewal: 8th November 2004

Frequently asked questions

What conditions does Exocin treat?

Exocin is prescribed for a range of bacterial infections, including respiratory conditions such as bronchitis and tuberculosis, urogenital infections including prostatitis, urethritis, and cervicitis, and ocular infections such as pink eye and keratoconjunctivitis. Its active ingredient is bactericidal, meaning it acts directly on bacterial cells. The structured indication list below this introduction shows each registered use across the markets where Exocin is sold.

Which active substance is in Exocin?

Exocin contains ofloxacin, an antibacterial agent classified as bactericidal and used both in systemic and ophthalmic preparations. Ofloxacin is the same molecule whether sold under the Exocin brand or under another commercial name — internationally, the same active ingredient circulates under multiple brand names, and the formulation type (eye preparation versus systemic preparation) is an important distinction at any pharmacy counter.

In how many countries is Exocin available?

Exocin is registered for sale in 12 countries, with a footprint that spans Western and Southern Europe along with selected markets in Asia and Africa. Examples include the United Kingdom, Thailand, Portugal, India, Greece, South Africa, Denmark, and Turkey. If your country is not represented on this list, a local pharmacist can usually confirm whether ofloxacin is available in that market under a different brand name.

Can I find a generic version of Exocin?

Ofloxacin is sold under several brand names worldwide, both as generic ofloxacin products and as branded preparations, particularly in markets where the original patent has expired. Other antibacterials in related classes also exist internationally, although they are not interchangeable with ofloxacin without medical guidance. To identify an ofloxacin-containing product available locally, search the active ingredient on Pill2Trip or ask a pharmacist in your country.

Is Exocin a prescription medication?

Yes. Exocin is a prescription antibacterial, and its appropriate use depends on the type of infection, the site of infection, and the individual patient. Prescription rules, available formulations, and brand availability differ from one country to another, which is particularly relevant for travellers and people relocating between regulatory regimes. Any decision to start, continue, or substitute an antibacterial should involve a healthcare provider familiar with the patient.