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Tropicamide, sold under the brand name Mydriacyl among others, is a medication used to dilate the pupil and help with examination of the eye. [3] Specifically it is used to help examine the back of the eye. [4] It is applied as eye drops. [3] Effects occur within 40 minutes and last for up to a day. [3]
Tropicamide is an even shorter-lasting cycloplegic than cyclopentolate, but is less reliable for finding latent hyperopia. Cyclopentolate drops act rapidly to dilate the pupil. Cyclopentolate drops act rapidly to dilate the pupil.
The most common agents used to dilate the pupil are phenylephrine (2.5% in pediatrics or 10% in adults) and tropicamide (0.5% or 1%). While phenylephrine stimulates receptors that contract the dilator muscle of the pupil, [6] tropicamide blocks stimulation of the pupillary sphincter muscle to allow for relaxation. [7]
An analysis of 2024 Google search data revealed the top health questions asked by Americans. A registered nurse provides answers to the seven most common inquiries.
The WHO Model List of Essential Medicines for Children (aka Essential Medicines List for Children [1] or EMLc [1]), published by the World Health Organization (WHO), contains the medications considered to be most effective and safe in children up to twelve years of age to meet the most important needs in a health system.
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It contains, tropicamide, an anticholinergic, and phenylephrine, as the hydrochloride, an alpha-1 adrenergic receptor agonist. [1] It is sprayed into the eyes. [1]