Some medications can make psoriasis worse. These include:
- Lithium, which treats bipolar disorder and other mental illnesses
- High blood pressure and heart medicines, including propranolol (Inderal) and other beta blockers, ACE inhibitors, and quinidine
- Antimalarial medicines, including chloroquine, and hydroxychloroquine (Plaquenil), and quinacrine
- Indomethacin (Indocin), which treats inflammation