The Hyderabad-based drug maker said the observations were procedural. It however did not elaborate on them.
Unit 2 of the company at Visakhapatnam has been inspected by USFDA from September 11 to September 19, 2017, Divi's Laboratories said in a filing to BSE.
On completion of this inspection, the company "has received a Form 483, citing six observations which are procedural and the company will be responding to these within the stipulated time", it added.
"All previous observations have been confirmed as completed and resolved," it added.
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A Form 483 issued by the USFDA notifies the company's management of objectionable conditions at its facility.
It is issued at the conclusion of an inspection "when an investigator(s) has observed any conditions that in their judgement may constitute violations of the Food Drug and Cosmetic (FD&C) Act and related Acts".
Earlier in July 2017, Divi's Laboratories had said that US health regulator will lift an import alert imposed on the company's Unit-II at Visakhapatnam.
Divi's Laboratories had been issued a warning letter by the US health regulator earlier this year for its Visakhapatnam facility and had been issued import alert by the USFDA in March 2017 for the facility.
In the warning letter USFDA had raised concerns such as data integrity issues, including failure to prevent unauthorised access to laboratory records among issues for the letter.
Divi's Laboratories stock was trading at over 8 per cent up at Rs 933.10 on BSE.
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