Medication

Bacteria used in a probiotic

Q: The question is related to the bacteria used in a probiotic. 

Many years ago, a one time collection using an oral swab - like how a covid test is done - was obtained from a living infant. The bacteria was then isolated, identified, purified and mass produced after this single collection. 

The bacteria in this specific probiotic do not contain any human material or DNA. Bacteria don't come from humans. It is a separate entity so to speak. They are not part of the human body. 

Is it permissible to consume this medication?

Taking prophetic or non prophetic medicines

Q: Should we only rely on spritual medicines like zam zam, honey, etc. and not take medicines? I don't know why I think due to my weak faith that what happened if I don't get shifa and I only think of using medical medicines. Am I committing kufr?

I heard the Prophet (sallallahu alaihi wasallam) used both. Did he always use then in a combined form of both spiritual and physical medicines?