Updating {{drugbox}} (changes to verified fields - updated 'ChemSpiderID_Ref', 'DrugBank_Ref', 'ChEBI_Ref', 'StdInChI_Ref', 'StdInChIKey_Ref', 'ChEBI_Ref') per Chem/Drugbox validation (report [[W |
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| verifiedrevid = 409089198 |
| verifiedrevid = 409089198 |
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| IUPAC_name = ''N''-ethyl-3-hydroxy-2-phenyl-''N''- (pyridin-4-ylmethyl) propanamide |
| IUPAC_name = ''N''-ethyl-3-hydroxy-2-phenyl-''N''- (pyridin-4-ylmethyl) propanamide |
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| image = Tropicamide.svg |
| image = Tropicamide.svg |
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<!--Clinical data--> |
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| tradename = Mydriacyl |
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| Drugs.com = {{drugs.com|monograph|tropicamide}} |
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| CASNo_Ref = {{cascite}} |
| CASNo_Ref = {{cascite}} |
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| CAS_number = 1508-75-4 |
| CAS_number = 1508-75-4 |
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| ATC_prefix = S01 |
| ATC_prefix = S01 |
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| ATC_suffix = FA06 |
| ATC_suffix = FA06 |
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| ATC_supplemental = |
| ATC_supplemental = |
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| PubChem = 5593 |
| PubChem = 5593 |
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| DrugBank_Ref = {{drugbankcite|correct|drugbank}} |
| DrugBank_Ref = {{drugbankcite|correct|drugbank}} |
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| DrugBank = APRD00287 |
| DrugBank = APRD00287 |
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| ChemSpiderID = 5391 |
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| KEGG_Ref = {{keggcite|correct|kegg}} |
| KEGG_Ref = {{keggcite|correct|kegg}} |
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| KEGG = D00397 |
| KEGG = D00397 |
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| molecular_weight = 284.353 g/mol |
| molecular_weight = 284.353 g/mol |
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Revision as of 21:46, 30 August 2011
Clinical data | |
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Trade names | Mydriacyl |
AHFS/Drugs.com | Monograph |
Routes of administration | topical eye drops |
ATC code | |
Pharmacokinetic data | |
Protein binding | 45% |
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DrugBank | |
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CompTox Dashboard (EPA) | |
ECHA InfoCard | 100.014.673 |
Chemical and physical data | |
Formula | C17H20N2O2 |
Molar mass | 284.353 g/mol g·mol−1 |
(what is this?) (verify) |
Tropicamide (Mydriacyl) is an anticholinergic used as a mydriatic.
Uses
Tropicamide is an antimuscarinic drug that produces short acting mydriasis (dilation of the pupil) and cycloplegia[1] when applied as eye drops. It is used to allow better examination of the lens, vitreous humor, and retina. Due to its relatively short duration of effect (4–8 hours), it is typically used during eye examinations such as the dilated fundus examination, but it may also be used before or after eye surgery. Cycloplegic drops are often also used to treat anterior uveitis, decreasing risk of posterior synechiae and decreasing inflammation in the anterior chamber of the eye.
Tropicamide is occasionally administered in combination with p-hydroxyamphetamine (brand name Paremyd), which is a sympathomimetic. The use of the sympathomimetic drug causes the iris dilator muscle to be directly stimulated, causing increased dilation. In the United States, the sympathomimetic drop most commonly used along with Tropicamide, is 2.5% Phenylephrine Hydrochloride (brand name AK-Dilate).
Side effects
Tropicamide induces transient stinging and a slight and transient rise in intraocular pressure in the majority of patients. It may cause redness or conjunctivitis (inflammation) and also blurs vision for a short while after instillation (care must be taken, and the patient must only drive when vision returns to normal). Tropicamide may, in very rare cases [1], cause an attack of acute angle-closure glaucoma. This tends to be in patients with narrow anterior chamber angles, and closure risk must be assessed by the practitioner prior to instillation.
Tropicamide is often preferred to atropine because atropine has a longer half-life, causing prolonged dilation and blurry vision for up to a week. Atropine has less sting effect, but can be toxic or fatal if ingested in large quantities by children or adults.
Systemic side effects are very rare.
Tropicamide abuse in Russia
It is reported that tropicamide is used intravenously as a street drug in Russia. When used this way, it produces "severe psychiatric effects and brings on suicidal feelings."[2]
References
- ^ Manny RE, Hussein M, Scheiman M, Kurtz D, Niemann K, Zinzer K (2001). "Tropicamide (1%): an effective cycloplegic agent for myopic children". Investigative ophthalmology & visual science. 42 (8): 1728–35. PMID 11431435.
{{cite journal}}
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ignored (help)CS1 maint: multiple names: authors list (link) - ^ "Krokodil: The drug that eats junkies". The Independent. 22 June 2011.