Indicated for the treatment of chronic suppurative otitis media, otitis externa and as prophylactic treatment of otitis externa following trauma. Gentamicin & Hydrocortisone ear drops is also indicated for post-operative local use in surgery to infected mastoid cavities
Ophthalmic steroid - antibiotic combined preparations
Gentamicin is an aminoglycoside antibiotic and has a bactericidal action against many Gram-negative and some strains of Gram-positive bacteria. After actively transporting across the bacterial cell membrane, Gentamicin binds to a specific receptor protein on the 30S subunit of bacterial ribosomes, and interferes with an initiation complex between mRNA and the 30S subunit, inhibiting protein synthesis. DNA may be misread, thus producing nonfunctional proteins; polyribosomes are split apart and are unable to synthesize protein. Hydrocortisone depresses formation, release, and activity of endogenous mediators of inflammation as well as modifying immune response.
Ear Drops- For Middle Ear Infection: Instill 2-4 drops in the affected ear three to four times a day and at night, or more frequently if required. The suspension should be warmed by holding the bottle in the hand for one or two minutes to avoid dizziness, which may result from the instillation of a cold suspension. The patient should lie with the affected ear upward, and then the drops should be instilled. The tragus should then be pumped 5 times by pushing inward to facilitate penetration of the drops into the middle ear. This position should be maintained for two minutes. Repeat, if necessary, for the opposite ear.Canal Infection: Instill 2-4 drops in the affected ear three to four times a day and at night, or more frequently if required. The suspension should be warmed by holding the bottle in the hand for one or two minutes to avoid dizziness, which may result from the instillation of a cold suspension.Cream- For redness, itching, and swelling of the skin: Apply to the affected area of the skin two or three times per day.
Gentamicin: Additive effect with other neurotoxic and/or nephrotoxic drugs including cephalosporins, methicillin, amphotericin B, ciclosporin, cisplatin, potent diuretics (e.g. ethacrynic acid, furosemide) and neuromuscular blocking agents (e.g. succinylcholine, tubocurarine). May potentiate the effect of anticoagulants (e.g. warfarin, phenindione). May antagonise the effect of neostigmine and pyridostigmine. Increased risk of hypocalcaemia with bisphosphonates. Increased risk of neuromuscular blockade with botulinum toxin. Indometacin may increase the plasma concentration of gentamicin in neonates.
Hydrocortisone: Thiazides may enhance hyperglycaemia and hypokalaemia caused by corticosteroids. Increased incidence of peptic ulcer or Gl bleeding with concurrent NSAIDs admin. Response to anticoagulants altered. Dose of antidiabetics and antihypertensives needs to be increased. Decreases serum cone of salicylates and antimuscarinic agents. Ethanol may enhance gastric mucosal irritation. Reduced efficacy with concurrent use of carbamazepine, phenytoin, primidone, barbiturates and rifampicin. Mutual inhibition of metabolism between ciclosporin and corticosteroids increase plasma cone of both drugs. Enhanced effect in women taking oestrogens or oral contraceptives.
hypersensitivity to aminoglycoside; pregnancy; hepatic impairment.
Transient irritation, burning, stinging, Increased redness, lacrimation
Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks
Store in a cool and dry place. Protect from light and freezing. Discard contents one month after opening.
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