Pentasa & Hair Losd

Hi, I was diagnosed with Crohns 2 years ago. I am on 4000mg of pentasa a day plus I take Loperomide mornibg & night to keep things stable.
I am noticing significamt hair loss with scalp now showing through & comb is thick with hair everytime I use it - definitely above normal hair loss.
Can anyone suggest an alternative treatment that could save hair??

I've taken pentasa for a few years and haven't experienced any hair loss. But, I also take calcium as you see below as well as drinking milk every morning and eating yogurt 5 times a week. Makes me wonder if this might be helping me...