Doxycycline
Brand: Vibramycin
No boxed warning on the current FDA label.
- Caution
- Permanent tooth staining and enamel defects under age 8; photosensitivity and esophageal ulceration if taken lying down.
- Pregnancy
- Avoid in pregnancy: tooth staining and bone growth effects in the fetus.
Common side effects
- Nausea
- Sun sensitivity
- Diarrhea
- Throat irritation
Key interactions
- Separate from calcium, iron, and antacids
- May reduce birth-control effectiveness
- Dairy can reduce absorption
- Affects warfarin blood thinner
Counseling points
- Take with a full glass of water
- Do not lie down for 30 minutes after
- Use sunscreen and protective clothing
- Finish the full course
- Avoid in pregnancy and young children
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