The company has launched the tablets in the strengths of 5 mg and 10 mg after getting the approval from the United States Food and Drug Administration (USFDA), Dr Reddy's Laboratories said in a filing to the BSE.
The tablets are generic versions of Merz Pharma GmbH & Co KGaA's Namenda tablets, it added.
"The Namenda (memantine HCl) tablets brand had US sales of approximately USD 1.4 billion MAT for the most recent twelve months ending in May 2015, according to IMS Health," Dr Reddy's Laboratories said.
Shares of Dr Reddy's Laboratories today closed at Rs 3,758.75 per scrip on the BSE, up 0.44 per cent from its previous close.