Minocycline (Minocin) — Compare Prices at US & Canada Pharmacies

Minocycline is a tetracycline, closely related to doxycycline but with a few distinct properties that shape how it's used. It's more lipid-soluble than other tetracyclines, which lets it cross into the central nervous system and skin more readily — a property that made it a historical option for eradicating the meningococcal nasal carrier state (largely abandoned due to its side effects) and that underlies its continued use for inflammatory acne and rosacea, both as oral capsules and as topical foam formulations (Amzeeq, Zilxi). It's also a first-line oral option for many MRSA skin and soft-tissue infections, since susceptibility to minocycline has remained more consistent than to some other oral options.

That same tissue penetration comes with side effects less common with doxycycline. Vestibular symptoms — dizziness, unsteadiness, and vertigo — occur more often with minocycline than other tetracyclines, especially early in treatment, and can be disruptive enough that patients stop the drug. Long-term use, particularly for chronic acne, has also been linked to a distinctive blue-gray skin, nail, or gum discoloration, drug-induced lupus-like syndrome, and rare cases of autoimmune hepatitis — findings that lead dermatologists to reassess whether extended courses are still necessary rather than continuing indefinitely. Like other tetracyclines, it can cause intracranial hypertension (pseudotumor cerebri, with headache and vision changes), a risk that rises when combined with isotretinoin, so the two are not used together.

The class-wide tetracycline warnings still apply in full: permanent tooth discoloration if used during tooth development (pregnancy after the first trimester, infancy, and childhood through age 8), photosensitivity, reduced effectiveness of hormonal contraceptives, and impaired absorption when taken with antacids, calcium, or iron supplements — minocycline should be separated from those products by a couple of hours.

Contraindications

CONTRAINDICATIONS This drug is contraindicated in persons who have shown hypersensitivity to any of the tetracyclines or to any of the components of the product formulation.

Warnings

WARNINGS Tooth Development Minocycline hydrochloride capsules, like other tetracycline-class antibiotics, can cause fetal harm when administered to a pregnant woman. If any tetracycline is used during pregnancy or if the patient becomes pregnant while taking these drugs, the patient should be apprised of the potential hazard to the fetus. The use of drugs of the tetracycline class during tooth development (last half of pregnancy, infancy, and childhood to the age of 8 years) may cause permanent discoloration of the teeth (yellow-gray-brown). This adverse reaction is more common during long-term use of the drug but has been observed following repeated short-term courses.

Pregnancy & breastfeeding

Pregnancy Risk Summary All pregnancies have a background risk of birth defects, loss, or other adverse outcome regardless of drug exposure. There are no adequate and well-controlled studies on the use of minocycline in pregnant women. Minocycline, like other tetracycline-class antibiotics, crosses the placenta and may cause fetal harm when administered to a pregnant woman. Rare spontaneous reports of congenital anomalies including limb reduction have been reported in postmarketing experience.