Mujahid bin Jabir مجاهد بن جبر · Medicine (Kitab Al-Tibb)

I heard the Messenger of Allah (ﷺ) say: If I drink an antidote, or tie an amulet, or compose poetry, I am the type who does not care what he does. Abu Dawud said: THis was peculiar to the Prophet (ﷺ), but some people have allowed to use it, i.e. antidote.

The Prophet (ﷺ) said: Allah has sent down both the disease and the cure, and He has appointed a cure for every disease, so treat yourselves medically, but use nothing unlawful.