Antibiotics Home > Doxycycline Side Effects
Common doxycycline side effects include diarrhea, skin reaction to sunlight, or unexplained rash. While these side effects may require no medical attention, if you experience more serious problems, such as watery diarrhea or fever, stop taking the antibiotic and notify your healthcare provider immediately. Less than 1 percent of people taking it experience rare doxycycline side effects, such as liver damage, allergic reaction, or vision changes.
- Indigestion and heartburn
- Skin reaction to sunlight (photosensitivity)
- Loss of appetite.