I take the following medicines Alendronate Sodium 70 mg 1 per wk, Amlodipinen5mt 1 daily, Aspirin 81 mg, bisiprolol Fumurate 10 mg daily, Hydroxchloroquine 200 mg 2 per day for rash, Ropinirole HCL1 MG 4 per day Synthroid 150 mcg five days 175 mcg 2 days and Zyrtec 10 mg daily. I do not have Lupus but I have a rash and have had ever since I had a reaction to Pneumonia Vaccine. It is very painful and itches terribly. It will clear up and in a month come back. Could some of my medicine be interacting with one of the other ones.