See Fact Sheet 500 for more information on Opportunistic Infections . This stands for mycobacterium avium complex. See Fact Sheet 510 for more information on MAC . It can also be used to prevent MAC infection. If your T-cell count is below 75, talk to your doctor about using clarithromycin.
Some people are allergic to clarithromycin and similar antibiotics.
Be sure to tell your doctor if you are allergic to erythromycin or other antibiotics. Whenever you take medication, be sure to take all of the prescribed doses. Many people stop if they feel better. This is not a good idea. When this happens, the drug will stop working.