Nearly one fourth of the widely used new-generation biological drugs can cause serious side effects.
Humiraand Remicade drugs for arthiritis; cancer drugs Rituxan and Erbitux, and the heart failure drug Natrecor were included in the list of these drugs.
The study has stunned the doctors who had been recommended these drugs considering them to be safer than other medicines.
The biological drugs are made from living material. They affect the body's disease-fighting immune system. Most of these drugs suppress the disease symptoms.
According to Dr Charles Bennett a Northwestern University drug safety expert, the mechanism of working can cause side effects.