I just took one pill named Cefpodoxime. I noticed an increase in my pulse rate. This was listed as a side effect that I should discuss with my doctor. I was wondering if it was interacting with my other medications: i.e., Crestor 10 MG, Toprol , Plavix, Zantac, Claritin and supplements such as calcium, fish oil, one a day vitamin,. I recently am discontinuing mirtapazine, 1/2 every other day 7.5 mg.