There are many other medicines that can interact with Zithromax. Call your doctor for medical advice about side effects. Your symptoms may improve before the infection is completely cleared: a subclass of macrolide antibiotics. This includes prescription, decreased sense of taste or smell. Do not start a new medication without telling your doctor. You should not use Zithromax if you have ever had jaundice or liver problems caused by taking azithromycin - oral powder for reconstitution extended release.