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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 contains, tropicamide, an anticholinergic, and phenylephrine, as the hydrochloride, an alpha-1 adrenergic receptor agonist. [1] It is sprayed into the eyes. [1]
The antimuscarinic, tropicamide, may be used as a mydriastic agent during surgery. [6] Serotonergics such as LSD, psilocybin mushrooms, mescaline and 2C-B. These drugs are typically hallucinogens. Similarly, selective serotonin reuptake inhibitors can cause mydriasis. Dissociatives such as dextromethorphan (an SSRI and sigma-1 agonist).
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.
Important [5] muscarinic antagonists include atropine, hyoscyamine, hyoscine butylbromide and hydrobromide, ipratropium, tropicamide, cyclopentolate, pirenzepine and scopalamine. Muscarinic antagonists such as ipratropium bromide can also be effective in treating asthma , since acetylcholine is known to cause smooth muscle contraction ...
Topical atropine is used as a cycloplegic, to temporarily paralyze the accommodation reflex, and as a mydriatic, to dilate the pupils. [15] Atropine degrades slowly, typically wearing off in 7 to 14 days, so it is generally used as a therapeutic mydriatic, whereas tropicamide (a shorter-acting cholinergic antagonist) or phenylephrine (an α-adrenergic agonist) is preferred as an aid to ...
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Phenylephrine, sold under the brand names Neosynephrine and Sudafed PE among others, is a medication used as a decongestant for uncomplicated nasal congestion in the form of a nasal spray or oral tablet, [5] to dilate the pupil, to increase blood pressure given intravenously in cases of low blood pressure, and to relieve hemorrhoids as a suppository.