Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 2 years ago

Fasting the whole of the month of Ramadan is obligatory unless you are traveling or ill with an illness which is related to fasting or caused or worsened by fasting. If taking the antibiotics is must, then you can try to take it in the period fromMahrib till Fajr. If you need to take it during the day and you can not avoid it, then it will be medically necessary which allows you not to fast but you must keep Qadha of that fast which you missed after the month of Ramadan.