The United States Food and Drug Administration (USFDA) inspected company's manufacturing facility at Verna, Goa from April 3 to April 7, 2017, Marksans Pharma said in a filing to BSE.
"At the end of inspection, there were four observations given under Form 483," it added.
The company has already started addressing the same and and is confident of satisfying the health regulator within the stipulated time, the drug firm said.
The company also said that USFDA has granted it final approval for generic Dutasteride soft gelatin capsules in the strength of 0.5 mg. The company plans to launch the product immediately, it added.
Shares of Marksans Pharma were today trading at Rs 56.80 per scrip in the afternoon trade on BSE, up 8.92 per cent from its previous close.