Active Ingredient

Levofloxacin

Levofloxacin is an antibiotic used to treat a variety of bacterial infections. It belongs to the fluoroquinolone class of antibiotics, which work by stopping the growth of bacteria.

It is typically prescribed for infections that are serious or when other antibiotics are not suitable. Always use this medication under the guidance of a healthcare professional.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Levofloxacin Brands

Lquin

Strengths 250mg, 500 mg, 750 mg

Levoflox

Strengths 250mg, 500mg, 700mg

Levaquin

Strengths 250mg, 500mg, 750mg

Levoquin

Strengths 250mg, 500mg

Levofloxacin Uses

Levofloxacin is used to treat several types of bacterial infections. It is important to use it only for infections confirmed or strongly suspected to be caused by bacteria.

Respiratory tract infections
Urinary tract infections
Skin and soft tissue infections
Prostate infections
Sinus infections

How Levofloxacin Works

Levofloxacin works by inhibiting bacterial enzymes necessary for DNA replication, transcription, repair, and recombination. This action prevents the bacteria from multiplying and spreading.

By targeting these essential processes, levofloxacin helps to eliminate the infection from the body.

Common side effects of Levofloxacin

Not everyone experiences side effects with levofloxacin, and many side effects are mild and resolve on their own. However, it is important to be aware of them.

Nausea
Diarrhea
Dizziness
Headache
Insomnia
Stomach upset
Rash

If you experience serious or persistent symptoms, contact your doctor promptly.

Take the medication exactly as prescribed by your doctor.
Avoid excessive exposure to sunlight or artificial UV rays, as levofloxacin can increase sun sensitivity.
Do not take antacids or supplements containing calcium, magnesium, or iron within a few hours of taking levofloxacin.
Avoid alcohol as it may increase the risk of dizziness or drowsiness.
Inform your doctor if you experience tendon pain or swelling, as this may be a sign of a rare but serious side effect.

Always consult your healthcare provider for personalized medical advice.

Frequently Asked Questions

What does levofloxacin treat?

Levofloxacin is used to treat various bacterial infections, including those of the respiratory tract, urinary tract, skin, and sinuses.

How long does it take for levofloxacin to work?

The effects of levofloxacin can vary, but some patients may start to feel better within a few days. It is important to complete the full course as prescribed.

Can I drink alcohol while taking levofloxacin?

It is advisable to avoid alcohol while taking levofloxacin, as it can increase the risk of certain side effects like dizziness.

Are there any foods or drinks I should avoid with levofloxacin?

Avoid taking levofloxacin with dairy products or calcium-fortified juices alone, as they can affect absorption. It’s best to take it with water.

Is levofloxacin safe for everyone?

Levofloxacin is not suitable for everyone, including those with certain medical conditions. Always discuss your medical history with your doctor before starting treatment.