Q: Is marijuana haram (prohibited) or makruh (disliked), because it is also used as a medicine for asthmatics?
A: Marijuana is usually boiled and used for asthmatics and this will be permissible. The fresh leaves are boiled. It is not smoked as a cure for asthma. When smoked, it causes intoxication, and this is Haraam. Sayyidina Waa'il ibni Hajar (Radhiyallaahu Anhu) narrates that Rasulullah (Sallallaahu Alayhi wa Sallam) said: Every intoxicant is Haraam. (Shu'abul Imaan V2 P160). This will include intoxicants in all forms; whether alcohol, marijuana, drugs, etc.
May Allah Ta'aala grant you His Divine pleasure perpetually. Aameen.
Moulana Yusuf Laher
Checked and approved by: Mufti Siraj Desai