Dr Reddy's Laboratories stock fell five per cent on Thursday and hit its 52-week low on worries that resolution of US regulatory issues could get pushed out to FY19. The Street was expecting issues to get resolved in FY18 after the US had issued warning letter in November 2015 to Dr Reddy's three facilities at Miryalaguda, (Telangana), Srikakulam, and Visakhapatnam (the last two in Andhra Pradesh).
On Wednesday, the US regulator listed 13 observations on the company's Visakhapatnam plant.
The exact details are not known. The plant is not a major earnings contributor. But key products that could see launch

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