Isotretinoin - do I need to drink more water, if so how much?

You do not need to increase the amount of water you drink each day while taking Isotretinoin even though you are likely to experience drying of the mucous membranes.
It is generally accepted that women should drink around 2.2 liters a day and men around 3 liters a day. If you use this as a guide you should be fine.

"Always take isotretinoin with a full glass of water to prevent the capsule from melting in your esophagus (food pipe), causing irritation. Do not chew or suck on the capsule. Swallow it as quickly as possible. Take isotretinoin with food or milk. Take this medication for the entire length of time prescribed by your doctor. Your acne may seem to get worse at first, but should then begin to improve."

Read more at https://www.drugs.com/mtm/isotretinoin.html

Take care,

maso.-