Drug maker Dr Reddy`s Laboratories` US subsidiary has received tentative approval from the US Food & Drug Administration (USFDA) for Galantamine Hydrobromide tablets in the strengths of 4 mg, 8 mg and 12 mg.

Galantamine Hydrobromide is used to treat the symptoms of dementia associated with Alzheimer`s disease.

Recently, the company received approval from USFDA for Trandolapril tablets, used in the treatment of hypertension.

Shares of the company declined Rs 23.5, or 4.12%, to trade at Rs 547. The total volume of shares traded was 8,432 at the BSE (11.54 a.m., Monday).