Tropicamide
chemical compound
Tropicamide, sold under the brand name Mydriacyl among others, is a medication used to dilate the pupil and help with the examination of the eye. Specifically it is used to help examine the back of the eye. It is applied as eye drops. Effects occur within 40 minutes and last for up to a day.
Common side effects include blurry vision, increased intraocular pressure, and sensitivity to light. Another rare but severe side effect is psychosis, particularly in children. It is unclear if use during pregnancy is safe for the fetus. Tropicamide is in the antimuscarinic part of the anticholinergic family of medications. It works by making the muscles within the eye unable to respond to nerve signals.
Tropicamide was approved for medical use in the United States in 1960.
The public source identifies “Tropicamide” as chemical compound. This brief keeps that definition visible, then builds a research path around Tropicamide, chemical and compound.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jul 12, 2026. The linked authority identifier is Q29310. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1960.
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This entry incorporates text from “Tropicamide” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.