Shelf life of doxycycline?

In general:
- Most doxycycline tablets or capsules have a shelf life of about 2–3 years from the manufacture date if stored properly (cool, dry place, in the original container). Always check the “EXP” date on your bottle.
- Reconstituted doxycycline oral suspension usually has a much shorter shelf life (often about 14 days when refrigerated). Follow the label, and discard after that period.

Storage tips:
- Store at room temperature (roughly 20–25°C / 68–77°F), away from moisture and light.
- Keep the bottle tightly closed in its original container.
- Do not store in the bathroom cabinet (high humidity).

What to do with expired doxycycline:
- Do not use expired antibiotics. If you have an infection, contact a healthcare professional for a current prescription.

If you have a specific product or form (tablet, capsule, suspension, injectable) and its expiration date, I can give more precise guidance.