Infection while Fasting

I have an infection and have been prescribed antibiotics which I have to take three times a day (one every eight hours). I also have to keep my fluids up which means I have to drink a lot of water during the day because my blood pressure is quite low. Am I exempt from fasting?

In the Name of Allah, the Most Gracious, the Most Merciful.

As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh

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