Doxycycline Interactions
- Birth control medicine may not work as well when you take Doxycycline. Use condoms for birth control when taking Doxycycline.
- If you take warfarin (Coumadin), digoxin, Accutane, lithium, insulin, methotrexate, barbiturates, phenytoin (Dilantin), carbamazepine (Tegretol), or rifampin, call 211 or call your doctor to tell them that you are taking Doxycycline. These medicines can cause problems if taken while taking Doxycycline.
- Do not use any herbs, especially St. John’s Wort and Dong Quai while taking this medicine.