Timolol
Timolol (Timoptic) is an ophthalmic beta blocker used to lower pressure inside the eye in glaucoma and ocular hypertension. This catalogue lists it alone in Timoptic and combined with a second pressure-lowering ingredient in Cosopt and Combigan.
Key points
- The Timoptic label lists timolol maleate ophthalmic solution at 0.25% and 0.5% strengths.
- Cosopt combines timolol with dorzolamide, and Combigan combines it with brimonidine.
- Ophthalmic timolol can have systemic beta-blocker effects, including effects on heart rate and breathing.
What Timolol is used for
Timolol is used for Open-angle Glaucoma and Ocular Hypertension. All three products in this catalogue, Timoptic, Cosopt and Combigan, are listed for both conditions.
Brands and forms in this catalogue
Timoptic, the catalogue’s only single-ingredient timolol product, comes from originator Santen. Cosopt’s originator is Merck and Combigan’s is Allergan. All three come in a bottle rather than a tablet or capsule, in the Eye Care category.


