Levaquin is a type of antibiotic classified as a fluoroquinolone. It’s used to fight bacterial infections. It is prescribed to treat a wide range of bacterial infections. It can also be used for people who have had exposure to specific types of the plague and anthrax. The antibiotics in this classification are extremely strong and can cause a lot of health problems for some patients. It’s generally only prescribed for an infection when a safer antibiotic hasn’t worked to treat it.

This antibiotic works by keeping any bacteria from growing and getting rid of the infection. It is only used for bacterial infections and doesn’t work for viral or fungal infections. It should only be used when it’s needed because the overuse of this and other antibiotics can lead to future infections that can’t be treated. It doesn’t work for the flu or the common cold.

Precautions and Warnings of Levaquin

If you’ve ever had an allergic reaction to another quinolone antibiotic, such as ofloxacin and ciprofloxacin (Cirpodex Ear Drops), make sure your doctor knows. It’s unknown whether this medication can interfere with a pregnancy, and it should only be taken when really needed during pregnancy. It does pass into breast milk.

Levaquin can cause effects in people who have a history of bone and tendon problems. If you’ve ever had bursitis or tendonitis, it’s important to let the doctor know. This medication can cause problems with tendons, especially the Achilles tendon.

It can also cause problems for the rhythm of the heart, including QT prolongation. This is generally not serious, but it can be for some patients. In the most serious cases, it can be fatal. If you have an irregular or too-fast heartbeat, you may need immediate medical help. If you have low magnesium or potassium, you can have a higher chance of developing QT prolongation when you’re taking Levaquin. The chances are higher if you also take a diuretic.

The medication can also cause a number of blood sugar changes that can be serious. If you have diabetes, it’s important to take your blood sugar often. Watch for any blood sugar problems and symptoms like being thirsty more often, getting blurry vision, sweating, increased hunger, having a fast heartbeat, and dizziness. You may need to carry glucose with you while taking Levaquin in case high blood sugar should happen. It’s also possible to get low blood sugar. To make this less likely, never skip meals and carry food with you just in case of a problem. Your diabetes medication may have to be changed while you’re taking Levaquin.

Don’t use cannabis or alcohol while taking this medication. This medication can cause lightheadedness or dizziness. Cannabis and alcohol can each cause you to have increased dizziness and lightheadedness. Levaquin can also cause you to have a greater level of sun sensitivity. When you take this medication take precautions when you go into the sun, and don’t use a sunlamp or a tanning booth. Apply sunscreen to your exposed skin when you know you’ll be in the sun. If you get a sunburn, let your doctor know about it right away.

If you take this medication, it can make vaccines that use live bacteria not work as well. Before you get a vaccine, let the practitioner know that you’re taking Levaquin. If you’re going to have surgery make sure the surgeon knows about it.

Children and the elderly often have a higher risk of developing tendon problems from Levaquin. If an older person is taking a medication like hydrocortisone or prednisone, they have a higher chance of problems.

Before you start taking this medication, it’s important for your doctor to know if you have certain medical problems. These include:

  • Diabetes
  • Liver disease
  • Bone problems
  • High blood pressure
  • An irregular heartbeat
  • Heart disease
  • Kidney disease
  • Low potassium
  • Seizures
  • Joint problems
  • Tendon problems
  • Nerve disorders
  • Myasthenia gravis
  • Mental illness
  • Allergic reactions to anything

Side Effects of Levaquin

There are many mild side effects possible, but there are also more serious effects possible. Some of the more common side effects that don’t necessarily require medical treatment include headaches, diarrhea, insomnia, dizziness, light sensitivity, and nausea.

More serious side effects that can develop include heart rhythm changes, pain or swelling in the joints, tendons, and muscles, and pain or numbness in the feet or hands. It may also cause increased pressure to build up around the brain. This can cause vomiting, nausea, blurry vision, and serious headaches. Levaquin can also cause Behavioral and mood changes. If you have any history of mental illness, let your doctor know before you take it. If you have pain in your back, chest or stomach that’s severe or sudden, you may need medical attention right away.

If you have changes in your waste such as lighter stools or darker urine, you may have a liver injury that requires medical care. It’s also possible to get seizures, stiff muscles, changes in vision, fever, and severe diarrhea from this medication. If you see any of these side effects, tell the doctor immediately.

Drug Interactions with Levaquin

This medication shouldn’t be taken along with thioridazine, dronedarone (Multaq), cisapride, or pimozide. It can also interact with birth control pills and antacids. It may also interact with:

  • Theophylline
  • Steroid medications such as cortisone and prednisone
  • Sucralfate
  • Dofetilide
  • Ziprasidone
  • Multivitamins
  • Warfarin and other blood clot medications
  • Diabetes medication like insulin, glyburide, or glipizide
  • Didanosine

If you take any of these medications, make sure your doctor knows about them. Also tell them about any OTC supplements you take.

Strengths and Dosages of Levaquin

Levaquin comes in both tablet form and as an oral solution. Taking the tablets can be done either with food or without it. When the oral solution is taken, it should be taken on an empty stomach. This should be at least an hour before you eat a meal and at least two hours after one. Be sure to drink a lot of water with this medication to keep your kidneys working well.

For adults, there is an oral solution that is 25 mg. There are various tablet strengths. These are 250 mg, 500 mg, and 750 mg for adults. For pediatric patients, there is a 25 mg oral solution. The tablets for children come in 250 mg and 500 mg.

Adults Children
Oral Solution: 25 mg 25 mg
Tablets: 250 mg, 500 mg, 750 mg 250 mg, 500 mg


For adults, 250 to 750 mg are commonly prescribed. The amount of time that the medication is taken can range anywhere from five to 60 days. Be sure to take it as long as prescribed. When meting out the liquid, use the provided dosing syringe rather than trying to measure it in a household spoon. Don’t skip doses or full days while taking this medication.

Cost of Levaquin in America

The cost of Levaquin varies with the strength you’re taking, the number of days you’ll need to be on it, the health plan you have, and the pharmacy that it comes from. The average retail price for a course of these antibiotics is about $130.

There are generics of Levaquin available on the market. These can cost anywhere from $6 to $30, depending on the deal and the coupon used.

FAQs Of Levaquin

What does Levaquin do?

It’s a type of antibiotic that is used to treat bacterial infections. This antibiotic is often used when other antibiotics were tried and didn’t get rid of the infection.

Will Levaquin work for colds and the flu?

No, those are viral infections. Levaquin only works on bacterial infections.

Can taking this give you a yeast infection?

Yes, it’s a possible side effect caused by the killing off of bacteria. If you get the symptoms of a yeast infection either vaginally or orally (thrush), contact your doctor.

Can Levaquin cause tendon problems?

Yes, there is a risk of developing tendon problems when you take this medication. That’s especially true for problems with the Achilles tendon in the back of the heel.

Can this medication be taken with birth control pills?

It can interfere with the efficacy of birth control pills. If you’re taking both, you’ll need to take precautions to prevent pregnancy.

Should you eat when taking this medication?

The tablet form can be taken with a meal or without one. The liquid form has to be taken on an empty stomach.

IMPORTANT NOTE: The information provided here is for educational purposes only and is not intended to serve as medical advice, diagnosis, or treatment recommendations. It should not be taken as an endorsement of any specific medication or treatment. Individual health conditions and responses to treatment can vary greatly; therefore, this information should not be seen as a guarantee of safety, suitability, or effectiveness for any particular individual. Always consult with a healthcare professional for personalized medical advice and before making any decisions regarding your health or treatment plans.

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