Patient Education for Doxycycline
Take doxycycline 100 mg twice daily with a full glass of water, remain upright for at least 30 minutes afterward, and avoid dairy products, antacids, or supplements containing calcium, iron, or magnesium within 2 hours of taking the medication to ensure proper absorption. Common side effects include photosensitivity (increased sun sensitivity), nausea, diarrhea, and esophageal irritation, so use sunscreen, take with food if stomach upset occurs, and contact your healthcare provider if you experience severe side effects or symptoms don't improve after completing treatment.
Dosage Instructions
- Take doxycycline exactly as prescribed (typically 100 mg twice daily for 7 days for most infections) 1
- Take with a full glass of water to prevent esophageal irritation 2
- Remain upright (sitting or standing) for at least 30 minutes after taking to prevent esophageal ulceration 2
- May take with food if stomach upset occurs, though this is not required for absorption 1
Important Precautions
- Avoid taking within 2 hours of:
- Use sunscreen and protective clothing as doxycycline can cause increased sensitivity to sunlight 3
- Complete the entire course of medication even if symptoms improve before finishing 2
- Avoid pregnancy during treatment as doxycycline is pregnancy category D 3, 1
- May reduce effectiveness of hormonal contraceptives; consider additional contraception 1
Potential Side Effects
Common side effects include:
Rare but serious side effects requiring immediate medical attention:
- Severe skin reactions
- Difficulty swallowing
- Severe headache or vision changes
- Allergic reactions 3
Contact your healthcare provider if symptoms worsen or don't improve after completing treatment, or if you experience severe side effects.