allergic rhinitis
"I was on the brand Singular 10mg for a month. It was helping and everything was fine with no side effects. I ordered a refill and I got the generic. I took it for 4 days. Since day 1 I was feeling bit weak, I thought it might just be a bad day. Then on day 2 it started increasing. I took the pill for 4 days and then stopped it. I had really bad anxiety and am not able to concentrate. Have a lot of bilateral head pressure and brain fog. My doctor while prescribing this medicine did not tell me any of this side effects. I have decided to do a research on a drug before taking it. This is a clear case where doctor is not aware about the side effects. 2 days off, still have anxiety and brain fog."