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/ˌɑk.siˈbjuː.tən.ɪn/ · noun
(pharmacology) An antispasmodic and anticholinergic drug C₂₂H₃₁NO₃ administered transdermally as a skin patch or orally in the form of its hydrochloride C₂₂H₃₁NO₃·HCl to relax the smooth muscles of the bladder in the treatment of urge incontinence, frequent urination, and urinary urgency..
Use oxybutynin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Oxybutynin means (pharmacology) An antispasmodic and anticholinergic drug C₂₂H₃₁NO₃ administered transdermally as a skin patch or orally in the form of its hydrochloride C₂₂H₃₁NO₃·HCl to relax the smooth muscles of the bladder in the treatment of urge incontinence, frequent urination, and urinary urgency..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use oxybutynin where its definition matches the intended context.
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