Doxycycline
Brand: Vibramycin
Key warning
Caution: can permanently stain teeth in children under 8
Common side effects
- Nausea
- Sun sensitivity
- Diarrhea
- Throat irritation
Key interactions & cautions
- 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
High-yield study aid for exam prep — not a substitute for the package insert or a pharmacist’s dispensing reference.