Product Monograph - Tetracycline 1% Ophthalmic Ointment
ADVERSE EFFECTS
Itching, burning or inflammation may occur in patients who are hypersensitive to the product. If a reaction occurs, discontinue use of the product.
Blurred vision may occur after administration of this product. If no improvement occurs within a few days, medical advice is needed.
Tetracycline topical ophthalmic ointment has no systemic action; in rare cases it may cause irritation of the eyelid mucosa.
Candidiasis occurrence is possible and is mainly due to overgrowth of Candida albicans; and there may be overgrowth of the resistant coliform organisms, such as Pseudomonas and Proteus species.
Hypersensitivity reactions, including rashes, fixed drug eruptions, exfoliative dermatitis are rare but possible.
Myopia in patients taking tetracyclines may be due to transient hydration of the lens.
Cases of increased muscle weakness in patients with myasthenia gravis and exacerbation of lupus erythematosus are reported when tetracycline is applied over prolonged periods.
DOSAGE AND ADMINISTRATION
Properly cleanse the eye, removing exudate, debris and any foreign object before treating. Apply a thin layer over the cornea every two hours. To apply, insert the tip of the tube beneath the lower eyelid and express a small amount of the ointment into the conjunctival sac. Care should be taken not to contaminate the tip during administration. Treatment should continue for two days after the eye appears normal, or as recommended by the treating healthcare professional.
DRUG INTERACTIONS
- Do not use makeup containing retinoids when tetracycline is applied.
- Ocular inflammation has occurred following the concomitant use of ocular preparations preserved with thimerosal in some patients using tetracycline.
- The predominantly bacteriostatic tetracyclines may antagonize the action of penicillins; therefore, it is recommended that the two types of drugs should not be used together, especially when a rapid bactericidal action is necessary.
STORAGE CONDITIONS
Store at room temperature (15-30°C). Protect from freezing. Keep tightly closed.
