Check the expiration date printed on the bottle. This is the most reliable method.
Inspect the capsules. Look for discoloration. Expired doxycycline capsules may change color; they might darken or develop unusual spots.
Assess the texture. Crumbling or unusual stickiness indicates potential degradation.
Note any unusual odor. A musty or off-putting smell suggests the medication has deteriorated.
Examine the packaging. Damage to the container, like significant dents or tears, might compromise the medication’s integrity. Check the seal; it should be intact.
If you observe any of these changes, discard the medication safely. Consult your pharmacist or doctor for advice on proper disposal.
