Timolol Maleate Rx
Generic Name and Formulations:
Timolol (as maleate) 0.25%, 0.5%; oph soln; contains benzalkonium chloride.
Various generic manufacturers
Indications for Timolol Maleate:
Elevated intraocular pressure in ocular hypertension or open-angle glaucoma.
Adults and Children:
<2yrs: not established. ≥2yrs: Initially 1 drop of 0.25% twice daily; max 1 drop of 0.5% twice daily. Transfer from other drugs, see full labeling.
Greater than 1st-degree AV block. Uncompensated cardiac failure. Cardiogenic shock. Sinus bradycardia. History of bronchospasm. Bronchial asthma. Severe COPD.
Not for use as sole agent in angle-closure glaucoma. Poor cardiac reserve should be controlled with digitalis and diuretics. Diabetes. Presbyopia. May mask hypoglycemia or thyrotoxicosis. Myasthenia gravis. Cerebrovascular insufficiency. Measure intraocular pressure after 4 weeks of treatment. Avoid abrupt cessation. Discontinue at 1st sign of cardiac failure and before surgery. Pregnancy. Nursing mothers: not recommended.
May potentiate systemic β-blockers, reserpine, hypoglycemics and mydriatic effect of topical epinephrine. Additive cardiac and pulmonary effects with anticholinesterase miotics. May antagonize bronchodilation from β-adrenergic agonists. May cause conduction defects with calcium channel blockers, digoxin. May be potentiated by CYP2D6 inhibitors (eg, quinidine, SSRIs).
Ocular irritation, sensitization, rash, dizziness, blurred vision, corneal anesthesia, headache, GI upset, paresthesias. Systemic β-blocker effects (bradycardia, arrhythmias, hypotension, bronchospasm, heart failure). Aphakic maculopathy (rare).
Formerly known under the brand name Timoptic.
Soln—contact supplier; Ocudose—60; XE—2.5mL, 5mL