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Frequently Asked Questions. What is Betimol? Betimol (timolol ophthalmic solution), 0.25% and 0.5%, is a non-selective beta-adrenergic antagonist for ophthalmic use and it is indicated in the treatment of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma.
Timolol (as the hemihydrate) is a white, odorless, crystalline powder which is slightly soluble in water and freely soluble in ethanol. Timolol hemihydrate is stable at room temperature. BetimolÂ® is a clear, colorless, isotonic, sterile, microbiologically preserved phosphate buffered aqueous solution. It is supplied in two dosage strengths, 0.25% and 0.5%. Each mL of BetimolÂ® 0.25% contains 2.56 mg of timolol hemihydrate equivalent to 2.5 mg Timolol. Each mL of BetimolÂ® 0.5% contains 5.12 mg of timolol hemihydrate equivalent to 5.0 mg timolol.