Etanautine

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Etanautine
Etanautine.svg
Systematic (IUPAC) name
2-[di(phenyl)methoxy]-N,N-dimethylethanamine; 2-(1,3-dimethyl-2,6-dioxopurin-7-yl)acetic acid
Clinical data
Legal status ?
Identifiers
CAS number 88637-37-0
ATC code N04AB01
Chemical data
Formula C26H31N5O5 
Mol. mass 493.555 g/mol
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Etanautine, also known as diphenhydramine monoacefyllinate, is an anticholinergic used as an antiparkinsonian agent. It is a 1:1 salt of diphenhydramine with acefylline, similar to the diphenhydramine/8-chlorotheophylline combination product dimenhydrinate.

As with dimenhydrinate, the stimulant effect of the acefylline counteracts the sedative effect from the diphenhydramine, resulting in an improved therapeutic profile.

The 1:2 salt diphenhydramine diacefylline (with two molecules of acefylline to each molecule of diphenhydramine) is also used in medicine, under the brand name Nautamine.

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