Active Ingredient

Minocycline

Minocycline is an antibiotic that belongs to the tetracycline class of medications. It is commonly used to treat a variety of bacterial infections in the body.

Minocycline works by stopping the growth of bacteria, helping the immune system to overcome the infection.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Minocycline Brands

Minocycline

Strengths 50mg, 100 mg

Minocin

Strengths 50mg

Minomycin

Strengths 50mg, 100mg

Minocycline Uses

Minocycline is used to treat several types of infections caused by bacteria.

Acne
Respiratory tract infections
Skin infections
Urinary tract infections
Some sexually transmitted infections

How Minocycline Works

Minocycline works by inhibiting the production of proteins that bacteria need to grow. This action helps to stop the spread of the bacteria, allowing the body’s immune system to fight off the infection.

As a tetracycline antibiotic, it targets the bacterial ribosome, which is essential for protein synthesis.

Common side effects of Minocycline

Not everyone experiences side effects with Minocycline, and many of them are mild and temporary.

Nausea
Dizziness
Diarrhea
Headache
Skin rash
Changes in skin color
Increased sensitivity to sunlight

If you experience serious or persistent side effects, contact your healthcare provider.

Avoid prolonged sun exposure and use sunscreen, as Minocycline can increase sensitivity to sunlight.
Do not take this medication with dairy products, as they can affect absorption.
Inform your doctor of any allergies or other medications you are taking to avoid interactions.
Do not use Minocycline if you are pregnant or planning to become pregnant without consulting your doctor.
Contact your healthcare provider if you notice any unusual symptoms or reactions.

Always consult your doctor for personalized medical advice.

Frequently Asked Questions

What is Minocycline used for?

Minocycline is used to treat various bacterial infections, including acne, respiratory infections, and skin infections.

How long does it take for Minocycline to work?

The time it takes for Minocycline to work can vary depending on the type and severity of the infection. Consult your doctor for more information.

Can I drink alcohol while taking Minocycline?

It is best to avoid heavy alcohol consumption while taking Minocycline, as it may increase the risk of side effects. Consult your doctor for advice.

Is Minocycline safe for long-term use?

Long-term use of Minocycline should be monitored by a healthcare provider to manage potential side effects and ensure effectiveness.

Can Minocycline be taken with other medications?

Minocycline may interact with other medications. Inform your healthcare provider about all medications you are taking to avoid interactions.