Although this medication is generally well tolerated, timolol, one of the active ingredients in Cosopt, does pass through breast milk, even when used as an eye drop. In addition, people who are already taking beta blocker medications may need to use a different eye drop in order to prevent a potentially serious drug interaction.
(Click Cosopt for more information on how the active ingredients work together in this product to treat high eye pressure, other safety precautions to be aware of, and possible side effects.)
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed June 15, 2010.
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