Some people are allergic to dapsone. Be sure to tell your doctor if you are allergic to any antibiotics. Dapsone can cause anemia, so people who are anemic should talk to their doctor about whether dapsone is the best drug for them. They could develop sudden, severe anemia. 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. For example, if you are taking dapsone to fight PCP and you miss too many doses, the PCP in your body could develop resistance to dapsone. Then you would have to take a different drug or combination of drugs to fight it. It is normally taken once a day.