Hello Dr.Ervis answering. Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: More common Headache muscle aches sleepiness or unusual drowsiness sore throat stuffy or runny nose Less common Body aches or pain congestion diarrhea dryness or soreness of the throat earache hoarseness redness or swelling in the ear tender, swollen glands in the neck voice changes