Sheikh Hamad al-Haydarî
These so-called “gifts” are nothing more than bribes being given by the sales representatives to the doctors. As such, it is not permissible for a doctor to accept them. What happens is that because of these gifts, doctors will prescribe medicines to their patients that may not reflect the best price or the best quality available on the market.
The Prophet (peace be upon him) said: “Religion is sincerity.”
He was asked: “To whom, O Messenger of Allah?”
He said: “To Allah, His Book, His Messenger, the Muslim leaders, and to the generality of the Muslims.” [Sahîh al-Bukhârî and Sahîh Muslim]
Such practices are not in accordance with the required sincerity to the general public. It leads only to pharmaceutical companies increasing their profits at the expense of the ultimate consumers.
The doctor is responsible to the patients who come to him. He is obligated therefore to recommend the best and most inexpensive medicine for the patient’s needs, regardless of the brand of medicine that it is.
Source: Islam Today