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Avelox Prescribing Information

Avelox is the brand name for the antibiotic medication moxifloxacin. It belongs to a class of antibiotics known as fluoroquinolones. Medicine is primarily used to treat a variety of bacterial infections, including those of the respiratory tract, sinuses, skin, and abdominal area. It works by inhibiting bacterial DNA synthesis, which helps to stop the growth and reproduction of bacteria causing the infection.

Avelox is often prescribed by doctors for moderate to severe bacterial infections when other antibiotics might not be effective.

Avelox tablets

Uses of Avelox

Avelox is an antibiotic medication that is primarily used to treat a range of bacterial infections. Some of the common uses include:

  • Respiratory Infections: Antibiotic can be used to treat bacterial infections of the respiratory tract, including acute bacterial sinusitis, community-acquired pneumonia, and chronic bronchitis exacerbations.
  • Skin and Soft Tissue Infections: It can be prescribed to treat bacterial infections of the skin and soft tissues, such as cellulitis and abscesses.
  • Intra-Abdominal Infections: Avelox may be used to treat certain bacterial infections within the abdominal area, such as peritonitis.
  • Complicated Urinary Tract Infections (cUTIs): Drug can be used to treat bacterial infections in the urinary tract that are considered complicated due to factors such as resistance to other antibiotics or the presence of other underlying medical conditions.
  • Infectious Diarrhea: In some cases, Medicine may be used to treat infectious diarrhea caused by certain bacteria.
  • Sexually Transmitted Infections: Avelox might be prescribed to treat certain sexually transmitted infections, such as gonorrhea, when other antibiotics are not effective.
  • Other Infections: Antibiotic might be considered for other bacterial infections that are susceptible to moxifloxacin and when alternative antibiotics are not appropriate or effective.

It's important to note that Avelox is not effective against infections caused by viruses, such as the common cold or flu.


The dosage of Avelox can vary depending on the specific infection being treated, the patient's age, weight, and medical history.

Typically, the dosages for adults might be as follows:

  • For Bacterial Sinusitis: A common dosage might be 400 mg once daily for 7 to 10 days.
  • For Pneumonia: The dosage could be 400 mg once daily for 7 to 14 days.
  • For Skin and Skin Structure Infections: A dosage of 400 mg once daily for 7 to 21 days might be prescribed.
  • For Intra-Abdominal Infections: The dosage might be 400 mg once daily for 5 to 14 days.

Side Effects of Avelox

Common side effects may include:

  • Nausea and Vomiting: Some people may experience nausea and vomiting while taking this antibiotic.
  • Diarrhea: Diarrhea is another common side effect of this medication.
  • Headache: Headaches can occur in some individuals taking Avelox.
  • Dizziness or Lightheadedness: Some people might experience dizziness or feel lightheaded.
  • Trouble Sleeping: Avelox could potentially affect sleep patterns for some individuals.
  • Changes in Taste: Some people might notice changes in their sense of taste.
  • Rash or Itching: Skin reactions, such as rash or itching, can occur but are less common.
  • Photosensitivity: Medicine might increase sensitivity to sunlight, leading to a higher risk of sunburn. It's advisable to use sunscreen and protective clothing when outdoors.
  • Joint or Muscle Pain: Fluoroquinolones, including Avelox, have been associated with the risk of joint or muscle pain, which can sometimes be severe.
  • Tendon Rupture: While rare, there is a potential risk of tendon rupture, especially in the Achilles tendon. This risk might be increased in people over 60 years of age, those taking corticosteroids, and individuals with a history of tendon disorders.
  • Central Nervous System Effects: Some people might experience central nervous system effects such as confusion, hallucinations, anxiety, depression, and other mood changes.
  • Irregular Heartbeat: Remedy could potentially lead to irregular heart rhythms in rare cases.

It's important to note that the list above isn't exhaustive, and individual responses to medications can vary.

Interaction with other drugs

Some interactions could affect the effectiveness of Avelox, increase the risk of side effects, or impact the efficacy of other medications. Here are a few types of medications that might interact with this drug:

  • Antacids, Minerals, and Multivitamins: Medicine should be taken at least 4 hours before or 8 hours after products containing magnesium, aluminum, iron, calcium, or zinc. These substances can bind to Avelox and reduce its absorption.
  • Nonsteroidal Anti-Inflammatory Drugs (NSAIDs): Combining tablets with NSAIDs, such as ibuprofen or naproxen, can increase the risk of central nervous system effects and potential seizures.
  • Corticosteroids: Using corticosteroids along with Avelox could increase the risk of tendon problems and also affect blood sugar levels.
  • Certain Heart Medications: Avelox might interact with drugs that affect heart rhythms, such as quinidine, procainamide, amiodarone, and sotalol, potentially leading to irregular heart rhythms.
  • Theophylline: Co-administration of Avelox and theophylline (a medication used for respiratory conditions) could increase the levels of theophylline in the body, potentially causing side effects.
  • Warfarin: Medicament might interact with warfarin, an anticoagulant, and could affect the blood's ability to clot properly.
  • Certain Antidepressants: Some antidepressants, like tricyclic antidepressants, might interact with Avelox and increase the risk of certain side effects.
  • Certain Antidiabetic Medications: Pharmaceutical medication could affect blood sugar levels and potentially interact with medications used to control diabetes.
  • Class Ia and III Antiarrhythmic Medications: These medications, such as quinidine and amiodarone, could potentially increase the risk of irregular heart rhythms when taken with Avelox.
  • Probenecid: Probenecid, used for gout and other conditions, might increase the levels of Avelox in the body.

What to avoid while on Avelox

While taking Avelox, there are certain things you should avoid to ensure your safety and the effectiveness of the medication. Here are some important considerations:

  • Antacids, Minerals, and Multivitamins: Avoid taking antacids, minerals (such as calcium, magnesium, aluminum, and iron), and multivitamins within 4 hours before or 8 hours after taking Avelox. These substances can bind to Moxifloxacin and reduce its absorption, potentially making the medication less effective.
  • Sunlight and UV Exposure: Antibiotic can increase your sensitivity to sunlight, potentially leading to sunburn more easily. To avoid this, it's recommended to limit your exposure to direct sunlight, wear protective clothing, and use sunscreen with a high SPF when outdoors.
  • Caffeine and Other Stimulants: Avelox might cause central nervous system effects like dizziness or lightheadedness. Avoid excessive consumption of caffeine and other stimulants, as they could exacerbate these effects.
  • Driving and Operating Machinery: Drug could potentially cause dizziness, lightheadedness, or other central nervous system effects. If you experience these effects, it's best to avoid activities that require alertness, such as driving or operating heavy machinery.
  • Alcohol: While there isn't a well-documented interaction between Avelox and alcohol, it's generally a good idea to avoid excessive alcohol consumption when you're taking any medication. Alcohol can potentially intensify side effects and interfere with your body's ability to heal.
  • Physical Activities: Be cautious with intense physical activities or exercises that might put strain on your tendons, as fluoroquinolone antibiotics have been associated with an increased risk of tendon rupture, especially in certain populations.
  • Grapefruit and Grapefruit Juice: While grapefruit interactions are more common with other types of medications, it's still a good practice to avoid consuming large amounts of grapefruit or grapefruit juice while on Avelox, as it could potentially affect the way your body processes the medication.

Contraindications of Avelox

Avelox has certain contraindications, which are situations or conditions in which the use of the medication is not recommended due to potential risks. Here are some contraindications:

  • Hypersensitivity: If you have a known hypersensitivity or allergic reaction to moxifloxacin or any other ingredients in Avelox, you should not take this medication.
  • Tendon Disorders: Avelox and other fluoroquinolone antibiotics have been associated with an increased risk of tendon disorders, including tendonitis and tendon rupture. If you have a history of tendon problems, you should generally avoid using Avelox.
  • Myasthenia Gravis: Pharmaceutical product can exacerbate muscle weakness in individuals with myasthenia gravis, a neuromuscular disorder. If you have this condition, Avelox is generally contraindicated.
  • Pregnancy and Breastfeeding: Avelox is not typically recommended during pregnancy, especially in the first trimester, due to potential effects on fetal development. It's also not recommended while breastfeeding, as moxifloxacin can be excreted in breast milk.
  • Pediatric Use: Remedy is not approved for use in children and adolescents under the age of 18, as there have been concerns about its potential effects on growing bones and cartilage.
  • Certain Heart Rhythms: If you have a history of certain heart rhythm disorders or are taking medications that can cause irregular heart rhythms (such as class Ia and III antiarrhythmics), Avelox might not be suitable for you.
  • Severe Liver Impairment: Antibiotic is primarily metabolized by the liver, so if you have severe liver impairment, you might consider alternative treatments or adjust the dosage.
  • Severe Kidney Impairment: Avelox is excreted through the kidneys, and if you have severe kidney impairment, you might need to adjust the dosage or choose an alternative treatment.
  • Central Nervous System Disorders: Avelox can potentially cause central nervous system effects such as dizziness, confusion, and hallucinations. If you have a history of central nervous system disorders, you should consider this when determining whether Avelox is appropriate for you.

Pregnancy and Avelox

Avelox is generally not recommended for use during pregnancy, especially in the first trimester. The safety of moxifloxacin during pregnancy has not been well established, and there have been concerns about its potential effects on fetal development.

The U.S. Food and Drug Administration (FDA) has categorized Avelox as a pregnancy Category C medication. This means that animal studies have shown adverse effects on the fetus, but there are no adequate and well-controlled studies in pregnant women. Due to the lack of human data, the potential risks to the fetus cannot be ruled out.

If you are pregnant or planning to become pregnant, it's important to discuss your situation with your doctor. They will weigh the potential risks and benefits and may consider alternative antibiotics that have a better-established safety profile during pregnancy.

It's also important to note that moxifloxacin can be excreted in breast milk, so if you are breastfeeding, Avelox is generally not recommended.

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