Reference: Fataawa Ramadhaan – Volume 2, Page 485, Fatwa No. 433
Question: I took an injection in my vein during the day in Ramadhaan. Is my fast for this day valid or is it obligatory upon me to make up this day?
Response: If this injection was nutritional [in any form] then it nullifies the fast whether it is in the vein or other than that. If, however, it is a tranquiliser or an analgesic for pain or that which is similar to it then this does not break the fast.
