October 10, 2015
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(alfentanil hydrochloride) Injection


ALFENTA (alfentanil hydrochloride) Injection is an opioid analgesic chemically designated as N-[1-[2-(4-ethyl-4,5-dihydro-5-oxo-1H-tetrazol-1-yl)ethyl]-4- (methoxymethyl)-4-piperidinyl]-N-phenylpropanamide monohydrochloride (1:1) with a molecular weight of 452.98 and an n-octanol:water partition coefficient of 128:1 at pH 7.4. The structural formula of ALFENTA (alfentanil) is:

ALFENTA (alfentanil hydrochloride)  Structural Formula Illustration

ALFENTA (alfentanil) is a sterile, non-pyrogenic, preservative free aqueous solution containing alfenta (alfentanil) hydrochloride equivalent to 500 μg per mL of alfenta base for intravenous injection. The solution, which contains sodium chloride for isotonicity, has a pH range of 4-6. Each mL contains: Active: (alfentanil) base 500 mcg. Inactive: Sodium Chloride 9 mg and Water for Injection Q.S.

Last reviewed on RxList: 8/14/2008
This monograph has been modified to include the generic and brand name in many instances.

Additional Alfenta Information

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