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Levofloxacin is a custom pharmacy drug classified in the family of drugs known as fluoroquinolones, or simply—quinolone antibiotics. Levofloxacin is designed specifically to treat bacterial infections and is not to be used for viral infections. Levofloxacin stops bacterial growth by destroying a bacterium's ability to repair or reproduce genetic material. Levofloxacin is often given to treat bacterial infections of the sinuses, bladder, prostate, kidneys, and skin.


Levofloxacin is most often taken by mouth, once a day as prescribed by your physician. This drug can be taken with or without food. Your dosage will depend on your current health status, condition, and weight. If your physician has prescribed other drugs or supplements for you as well, take levofloxacin at least two hours before or two hours after taking any other drug or supplement. Consult with your compounding pharmacist if you have further questions.


Side effects may occur with the use of this drug. See your doctor right away if any side effect is growing worse or persisting. Common side effects seen with levofloxacin are as follows:

  • Dizziness
  • Diarrhea
  • Headache
  • Constipation
  • Abdominal Pain
  • Rash
  • Gas
  • Itching
  • Nausea
  • Vomiting
  • Trouble Sleeping

Severe Side Effects:

Some side effects may be severe and serious. Severe side effects are a medical emergency and if experienced require immediate medical attention. Some of the possible severe side effects are listed below. Note this is only a partial list.

  • Signs of Kidney Problems (ask your doctor for more information)
  • Signs of Liver Problems (ask your doctor for more information)
  • Unusual Bruising
  • Unusual Bleeding
  • Fainting
  • Fast Heartbeat
  • Irregular Heartbeat
  • Chest Pain
  • Extreme Dizziness

WARNING: Diarrhea that persists, blood and/or mucus in your stool, and
stomach pain or cramping could be signs of a severe intestinal condition. If you experience any of the aforementioned, seek medical treatment at once.

Severe Allergic Reactions:
Although rare, some patients using this drug could experience a severe allergic reaction. Severe allergic reactions require immediate emergency medical treatment. Seek emergency medical treatment if you experience anything that feels like a severe allergic reaction. Some of the possible signs of a potentially severe allergic reaction are listed below.

  • Trouble Breathing
  • Swelling (especially notice the face, throat, and tongue)
  • Extreme Dizziness
  • Rash


Do not take this drug without your physician's approval.

There are many diseases, conditions, etc. that may make the use of this drug inadvisable. Check with your doctor for an overview of possible contraindications.

Levofloxacin may be contraindicated for the following conditions:

  • Lung Transplant
  • Heart Transplant
  • Clostridium Difficile Infection
  • Peripheral Neuropathy
  • Myasthenia Gravis
  • Low Blood Flow to Heart Muscle
  • Liver Problems
  • Kidney Transplant
  • Inflammation of Tendon
  • Tendon Rupture
  • Rhabdomyolysis
  • Hallucination
  • Lower Seizure Threshold
  • Seizures
  • Low Potassium Level in the Blood
  • Rapid Heartbeat
  • Slow Heartbeat
  • Prolonged QT Interval on EKG
  • Abnormal EKG
  • Hardening of the Arteries (brain)
  • Involuntary Shaking
  • Moderate to Severe Kidney Dysfunction
  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA