Always follow your doctor’s prescription. Typical adult dosages range from 100mg to 200mg once or twice daily. The specific dosage depends on the infection being treated. For example, for acne, a common regimen is 100mg once daily.
Specific Infections and Dosages
Lyme disease: Treatment typically involves 200mg once daily for 14-21 days. Chlamydia: A single 100mg dose may be sufficient, or a 100mg dose twice daily for seven days may be prescribed. Pneumonia: Dosages vary widely, usually 100mg twice daily, but your physician will determine the appropriate duration and dosage based on your condition.
Take doxycycline with a full glass of water. Avoid lying down for at least 30 minutes after ingestion to minimize esophageal irritation.
Administration Considerations
Food interactions: Dairy products, antacids, and iron supplements can reduce doxycycline absorption. Take doxycycline at least two hours before or four hours after taking these products. Sun sensitivity: Doxycycline increases sensitivity to sunlight. Use sunscreen and protective clothing while on this medication. Pregnancy and breastfeeding: This medication is generally avoided during pregnancy and breastfeeding. Consult your doctor immediately if you suspect you’re pregnant or are breastfeeding.


