A Dhaka court sentenced three officials of Adflame Pharmaceuticals, including its director and manager, to 10 years imprisonment.
They were also fined Tk 2 lakh each.
Dhaka division special judge Abdur Rashid passed the order on Tuesday.
The convicts are director Dr Helen Pasha, manager Mizanur Rahman and quality in-charge Nrigendra Nath Bala.
Of the accused, Mizanur Rahman and Dr Helen Pasha are now out on bail but Nrigendra Nath Bala is still absconding.
The court also acquitted owner of the pharmaceutical Azfar Pasha and quality in-charge Md Noman as they were not found guilty.