Answer
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
The medical use of any prohibited substance is conditioned upon it being determined with certainty or the preponderance of the evidence that such usage is a necessity, the lack of permissible alternatives, supervision by medical specialists, the benefits outweighing the harm, and consideration for minimizing side effects on the mind and body as much as possible.
Answering your question, The Assembly of Muslim Jurists of America, states:
The default principle is to avoid prohibited substances in medical treatment and otherwise, including narcotics. However, their use may be permitted when there is a verified therapeutic necessity and no alternatives are available, with consideration given to minimizing side effects on the mind and body as much as possible, and that this is under the full supervision of a trustworthy physician.
It is not permissible to use pure alcohol for medical treatment, and it is inconceivable that it would be a necessity in our contemporary reality.
Narcotics, despite being unanimously prohibited due to their mind-altering effects, drowsiness, and harm, may be used for medical treatment in their pure form, as they do not possess all the rulings associated with alcohol, being free from the excitement and rowdiness that alcohol can lead to. However, it is obligatory to mix them with other painkillers when possible and appropriate, to minimize the amount consumed, as necessity should be assessed according to its extent.
It is advisable to avoid alcohol as much as possible in the manufacturing of medicines and in prescribing them to patients. However, the use of medicines that contain small, diluted proportions of alcohol, which do not affect the color, taste, or smell, and do not cause intoxication to the consumer, is permitted. At the same time, though, emphasis is placed on the importance of avoiding this as much as possible.
The use of sedative (anesthetic) and toxic (nerve-damaging) substances is permitted for medical purposes when the benefits outweigh the harms, no alternatives are available, and there is consideration for minimizing side effects on the mind and body as much as possible, provided that this is under the full supervision of a trustworthy physician.
The use of hallucinogenic drugs is permitted if their benefit in treating certain diseases is proven, like other narcotics, and under the same conditions.
The medical use of any prohibited substance is conditioned upon it being determined with certainty or the preponderance of the evidence that such usage is a necessity, the lack of permissible alternatives, supervision by medical specialists, the benefits outweighing the harm, and consideration for minimizing side effects on the mind and body as much as possible. Additionally, it is the responsibility of the medical community to continuously search for permissible alternatives.
Almighty Allah knows best.
Source: AMJA Online
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