Brand Name(s): | IMPORTANT WARNING | WHY is this medicine prescribed? | HOW should this medicine be used? | Are there OTHER USES for this medicine? | What SPECIAL DIETARY instructions should I follow? | What should I do IF I FORGET to take a dose? | What SIDE EFFECTS can this medicine cause? | What should I know about STORAGE and DISPOSAL of this medication? | What should I do in case of OVERDOSE? | What OTHER INFORMATION should I know? | ahfsCopyRight

IMPORTANT WARNING

Taking gemifloxacin increases the risk that you will develop tendinitis (swelling of a fibrous tissue that connects a bone to a muscle) or have a tendon rupture (tearing of a fibrous tissue that connects a bone to a muscle) during your treatment or for up to several months afterward. These problems may affect tendons in your shoulder, your hand, the back of your ankle, or in other parts of your body. Tendinitis or tendon rupture may happen to people of any age, but the risk is highest in people over 60 years of age. Tell your doctor if you have or have ever had a kidney, heart, or lung transplant; kidney disease; a joint or tendon disorder such as rheumatoid arthritis (a condition in which the body attacks its own joints, causing pain, swelling, and loss of function); or if you participate in regular physical activity. Tell your doctor and pharmacist if you are taking oral or injectable steroids such as dexamethasone (Decadron, Dexpak), methylprednisolone (Medrol), or prednisone (Sterapred). If you experience any of the following symptoms of tendinitis, stop taking gemifloxacin, rest, and call your doctor immediately: pain, swelling, tenderness, stiffness, or difficulty in moving a muscle. If you experience any of the following symptoms of tendon rupture, stop taking gemifloxacin and get emergency medical treatment: hearing or feeling a snap or pop in a tendon area, bruising after an injury to a tendon area, or inability to move or to bear weight on an affected area.

Taking gemifloxacin may worsen muscle weakness in people with myasthenia gravis (a disorder of the nervous system that causes muscle weakness) and cause severe difficulty breathing or death. Tell your doctor if you have myasthenia gravis. Your doctor may tell you not to take gemifloxacin. If you have myasthenia gravis and your doctor tells you that you should take gemifloxacin, call your doctor immediately if you experience muscle weakness or difficulty breathing during your treatment.

Talk to your doctor about the risks of taking gemifloxacin.

Your doctor or pharmacist will give you the manufacturer's patient information sheet (Medication Guide) when you begin treatment with gemifloxacin. Read the information carefully and ask your doctor or pharmacist if you have any questions. You can also visit the Food and Drug Administration (FDA) website ( Web Site) or the manufacturer's website to obtain the Medication Guide.

What SPECIAL PRECAUTIONS should I follow?

Before taking gemifloxacin,

  • tell your doctor and pharmacist if you are allergic or have had a severe reaction to gemifloxacin or any other quinolone or fluoroquinolone antibiotics such as ciprofloxacin (Cipro), gatifloxacin (Tequin) (not available in the U.S.), levofloxacin (Levaquin), lomefloxacin (Maxaquin) (not available in the U.S.), moxifloxacin (Avelox), nalidixic acid (NegGram), norfloxacin (Noroxin), ofloxacin (Floxin), and sparfloxacin (Zagam) (not available in the U.S.); any other medications; or if you are allergic to any of the ingredients in gemifloxacin. Ask your pharmacist or check the Medication Guide for a list of the ingredients.
  • tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention the medications listed in the IMPORTANT WARNING section and any of the following: anticoagulants ('blood thinners') such as warfarin (Coumadin, Jantoven); certain antidepressants; antipsychotics (medications to treat mental illness); cisapride (Propulsid) (not available in the U.S.); diuretics ('water pills'); erythromycin (E.E.S., E-Mycin, Erythrocin, others); hormone replacement therapy; certain medications for irregular heartbeat such as amiodarone (Cordarone), procainamide (Procanbid), quinidine, and sotalol (Betapace, Betapace AF, Sorine); nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen (Advil, Motrin, others) and naproxen (Aleve, Naprosyn, others); or probenecid (in Col-Probenecid, Probalan). Your doctor need to change the doses of your medications or monitor you carefully for side effects.
  • if you are taking antacids containing aluminum hydroxide or magnesium hydroxide (Maalox, Mylanta, Tums, others); didanosine (Videx); sucralfate (Carafate); or vitamin or mineral supplements that contain iron, magnesium, or zinc, take these medications 3 hours before or 2 hours after you take gemifloxacin.
  • tell your doctor if you or anyone in your family has or has ever had a prolonged QT interval (a rare heart problem that may cause mayirregular heartbeat, fainting, or sudden death) or an irregular heartbeat, and if you have or have ever had nerve problems, a low level of potassium or magnesium in your blood, seizures, cerebral arteriosclerosis (narrowing of blood vessels in or near the brain that can lead to stroke or ministroke), a slow heartbeat, chest pain, or liver disease.
  • tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking gemifloxacin, call your doctor.
  • you should know that gemifloxacin may cause confusion, dizziness, lightheadedness, and tiredness. Do not drive a car, operate machinery, or participate in activities requiring alertness or coordination until you know how this medication affects you.
  • plan to avoid unnecessary or prolonged exposure to sunlight or ultraviolet light (sunlamps or tanning beds) and wear protective clothing, sunglasses, and sunscreen. Gemifloxacin may make your skin sensitive to sunlight or ultraviolet light. If your skin becomes reddened, swollen, or blistered, like a bad sunburn, call your doctor.

What SIDE EFFECTS can this medicine cause?

Some side effects can be serious. If you experience any of these symptoms, or those mentioned in the IMPORTANT WARNING section, stop taking gemifloxacin and call your doctor immediately:

  • severe diarrhea (watery or bloody stools) that may occur with or without fever and stomach cramps (may occur up to 2 months or more after your treatment)
  • rash
  • itching
  • hives
  • difficulty breathing or swallowing
  • swelling of the face, tongue, or lips
  • hoarseness or throat tightness
  • rapid heartbeat
  • fainting
  • yellowing of the skin or eyes
  • lightheadedness
  • dizziness
  • seizures
  • hallucinations (seeing things or hearing voices that do not exist)
  • not trusting others or feeling that others want to hurt you
  • depression
  • thoughts about dying or killing yourself
  • restlessness
  • confusion
  • nervousness
  • anxiety
  • difficulty falling asleep or staying asleep
  • nightmares
  • uncontrollable shaking of a part of the body
  • pain, burning, tingling, numbness, and/or weakness in a part of the body

Gemifloxacin may cause problems with bones, joints, and tissues around joints in children. Gemifloxacin should not be given to children younger than 18 years of age. Talk to your child's doctor about the risks of giving gemifloxacin to your child.

Gemifloxacin may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online [at Web Site] or by phone [1-800-332-1088].