how long should a 20 mg last using 1 drop in both eyes 2X a day last. ## It will last 4 months. A 5ml bottle with the same directions will last one month. ## 20 MG ONE DROP IN BOTH EYES TWICE A DAY LASTED ME 2 MONTHS. I THINK I NEED TO USE SMALLER AMOUNTS. THANK YOU ## Hi Marilyn, Regarding any possible side effects of Dorzolamide Hydrochloride +Timolol Maleate (Ophthalmic Solution) I think the paragraphs below may be of great help: "Dorzolamide Hydrochloride + Timolol Maleate (Ophthalmic Solution) was evaluated for safety in 1035 patients with elevated intraocular pressure treated for open-angle glaucoma or ocular hypertension. Approximately 5% of all patients discontinued therapy with Dorzolamide Hydrochloride-Timolol Maleate Ophthalmic Solution because of adverse reactions. The m...

Has anyone taken the generic verision of Dorzolamide-Timolol and is it as good as the non-generic verision? Thanks. s. hay ## I used this drug as sold under the Sandoz Inc label briefly. Whenever I dispenser a drop to an eye, it left a second drop hanging on the tip of the dispenser. Thus, I ran out of the med too soon so that I had to go back to Cosopt. I wonder if others have experienced this problem?