Unichem Laboratories Limited (UNICHEM) has announced that it has received An Abbreviated New Drug Application (ANDA) approval from the United States Food and Drug Administration (USFDA) for Donepezil Hydrochloride Tablets USP. This Donepezil Hydrochloride Tablets USP 5mg and 10mg are therapeutically equivalent to Aricept Tablets, 5mg and 10mg of Eisai, Inc. (USA). Donepezil Hydrochloride is a reversible inhibitor of the enzyme acetylcholinesterase which is basically used to improve the cognition and behavior