Sheikh Ahmad Kutty, A Senior Lecturer and an Islamic Scholar at the Islamic Institute of Toronto, Ontario, Canada, states the following: “Any substance that goes into our bellies or blood stream, according to jurists, is supposed to break our fast; any insertion of suppositories that do not have the same effect would not break the fast. Eye drops, use of kohl, or applications of creams or oils externally is not considered as breaking the fast.
If anyone needs to take medications of the first category, then he/she is exempt from fasting; they can make it up later if they can; if they are unable to make up the same because of health reasons, then they can offer fidyah as a compensation.”