Cosopt Side Effects

In clinical studies, the most commonly reported side effects of Cosopt included a stinging or burning sensation in the eye, eye redness, and a sour or bitter taste in the mouth. Fortunately, such problems are usually mild and easily treated. Rare (but potentially serious) side effects, such as double vision, difficulty breathing, and hallucinations, should be reported immediately to a healthcare provider.

An Introduction to Cosopt Side Effects

Just like any medicine, Cosopt® (dorzolamide/timolol) can cause side effects. However, not everyone who uses the medication will have problems. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider.
 
(This article covers many, but not all, of the possible Cosopt side effects. Your healthcare provider can discuss a more complete list with you.)
 

Common Side Effects of Cosopt

Cosopt has been studied thoroughly in clinical trials, in which the side effects of a group of people taking the drug are documented. Based on these clinical trials, the most common side effects seen with this medication include:
 
  • Eye burning or stinging -- in up to 30 percent of people
  • Bitter, sour, or unusual taste -- up to 30 percent
  • Eye redness -- up to 5 to 15 percent
  • Eye itching -- up to 5 to 15 percent
  • Blurred vision -- up to 5 to 15 percent
  • Tiny spots of corneal inflammation (known as superficial punctuate keratitis) -- up to 5 to 15 percent.
     
Some of the other common reactions (reported in 1 to 5 percent of people) include but are not limited to:
 
Cosopt Side Effects Article Continues on Next Page >
Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD
 
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