How long does biaxin stay in your system?

What is Biaxin?

Biaxin is a brand name for the antibiotic drug clarithromycin. It is used to treat bacterial infections in the body, such as pneumonia, bronchitis, and sinusitis. Biaxin works by killing bacteria in your body that can cause infections, thus relieving symptoms associated with them.

How long does Biaxin stay in your system?

The amount of time Biaxin stays in your system depends on several factors, such as your age, weight, kidney and liver functions, and other medications you may be taking. In general, Biaxin has a half-life of 3-4 hours, meaning that it takes around 3-4 hours for the drug to eliminate half of the dose from your body.

However, it takes around five half-lives for a drug to be completely eliminated from your system. Therefore, Biaxin can stay in your system for up to 20-24 hours after your last dose.

Factors that affect Biaxin’s elimination time

Several factors can affect how long Biaxin stays in your system.

  • Age: Older adults may experience slower drug elimination due to decreased kidney and liver function, leading to higher drug levels in the body.
  • Weight: Overweight or obese individuals may have a slower elimination time due to the drug’s tendency to accumulate in fatty tissue.
  • Kidney function: People with decreased kidney function may experience a slower elimination time since the kidneys play a major role in drug elimination.
  • Liver function: People with liver disease or decreased liver function may experience slower drug elimination since the liver plays a crucial role in processing and eliminating drugs from the body.
  • Other medications: Taking other medications can affect the way Biaxin is metabolized and eliminated from your body.

How is Biaxin eliminated from the body?

After absorption, Biaxin is metabolized in the liver, where it is broken down into several metabolites. These metabolites are then eliminated through urine, feces, and other fluids in the body.

Elimination route Percentage of elimination
Urine 20-30%
Feces 5-15%
Other fluids (e.g., breast milk, sweat, tears) Unknown

How long does Biaxin take to work?

Biaxin can start working within a few hours after taking the first dose. However, it may take up to a few days to see the full effects of the drug.

What is the recommended dosage of Biaxin?

The recommended dosage of Biaxin depends on the condition being treated, your age, weight, and overall health. It is important to follow your doctor’s instructions or the prescription label carefully.

  • Adult dose: The recommended adult dose of Biaxin for most infections is 250-500 mg twice a day for 7-14 days.
  • Child dose: The recommended dose for children varies depending on their age and weight. It is important to consult with a pediatrician for the correct dosage.

What are the side effects of Biaxin?

Like any medication, Biaxin can cause side effects. Common side effects may include:

  • Nausea
  • Vomiting
  • Diarrhea
  • Stomach pain
  • Headache
  • Loss of appetite
  • Unusual taste in the mouth
  • Changes in sense of smell
  • Rash

If you experience any severe side effects, such as difficulty breathing, hives, swelling, or jaundice, seek medical attention immediately.

Why is it important to take Biaxin as prescribed?

It is important to take Biaxin as prescribed by your doctor to ensure that you receive the correct dosage and to prevent the development of antibiotic resistance. Antibiotic resistance occurs when bacteria adapt to the medication making it less effective or not effective at all, and can lead to the development of more severe infections.

Can Biaxin cause drug interactions?

Yes, Biaxin can interact with other medications, including over-the-counter drugs and herbal supplements. It is important to inform your doctor or pharmacist of all medications you are taking before starting Biaxin to avoid any potentially harmful drug interactions.

Can Biaxin be taken during pregnancy or breastfeeding?

The safety of Biaxin during pregnancy or breastfeeding is not well-established. It is important to consult with your doctor before taking Biaxin if you are pregnant or breastfeeding to determine the risks and benefits of the medication.


Biaxin is an antibiotic used to treat bacterial infections such as pneumonia, bronchitis, and sinusitis. The length of time Biaxin remains in your system depends on factors such as age, weight, kidney and liver function, and other medications you may be taking. It is important to take Biaxin as prescribed by your doctor and to inform them of any medications you are currently taking to avoid potential drug interactions. If you experience any severe side effects or have concerns about taking Biaxin, consult with your doctor or healthcare provider.


  • Q: How long should I take Biaxin for?
  • A: The length of treatment varies depending on the condition being treated. It is important to follow your doctor’s instructions and to take the medication for the full duration to ensure that the infection is fully treated.

  • Q: Can Biaxin be taken with food?
  • A: Yes, Biaxin can be taken with or without food. However, taking Biaxin with food may help reduce stomach upset.

  • Q: How should Biaxin be stored?
  • A: Biaxin should be stored at room temperature away from moisture and heat. Keep the medication in its original container and out of reach of children.

  • Q: What should I do if I miss a dose of Biaxin?
  • A: If you miss a dose of Biaxin, take it as soon as you remember. However, if it is close to the time of your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed dose.

  • Q: Is it safe to drink alcohol while taking Biaxin?
  • A: It is recommended to avoid drinking alcohol while taking Biaxin as it may increase the risk of side effects such as nausea, vomiting, or stomach pain.