It is Ramadan and I have just visited doctor. She has given me antibiotic and asked to use it immediately. What should I do?
Should I break my fast? It is not yet Zuhr here.

If doctor says immediately, you can break your fast

It is Ramadan and I have just visited doctor. She has given me antibiotic and asked to use it immediately. What should I do?
Should I break my fast? It is not yet Zuhr here.

You may find your answer in the link below:

https://www.sistani.org/english/qa/02655/