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Dr. Banita Sehgal
Internal Medicine Physician
My approach to healthcare is rooted in building genuine partnerships with my patients.
Taking the time to understand their needs and goals helps us collaborate effectively and find the best path forward together. What I love most about my work is being someone they can count on — familiar, accessible, and focused on their well-being.
Azithromycin FAQs
No, azithromycin is not penicillin. Azithromycin belongs to a class of antibiotics known as macrolides, while penicillin is a type of antibiotic known as a beta-lactam.
Both azithromycin and penicillin are used to treat bacterial infections, but they work in different ways and target different types of bacteria.
Some people who are allergic to penicillin may also be allergic to other beta-lactam antibiotics, but this does not mean they are allergic to azithromycin. However, it's essential to inform your healthcare provider about any known drug allergies or sensitivities before starting treatment with azithromycin or any other medication to ensure safe and effective treatment.
Azithromycin can be taken with or without food, but it's generally recommended to take it on an empty stomach to maximize absorption. However, taking azithromycin with food may help reduce gastrointestinal side effects like nausea, vomiting, and diarrhea for some people.
The timing of doses throughout the day can vary depending on the prescribed regimen and the type of infection being treated. Typically, azithromycin is taken once daily, but the exact timing can depend on your healthcare provider's instructions and the specific formulation of the medication (e.g., immediate-release tablets, extended-release capsules).
Typically, azithromycin is prescribed for a short course of treatment, often ranging from three to 5 days.
For common infections like respiratory tract infections, such as bronchitis or pneumonia, a typical azithromycin course may last for five days. For certain sexually transmitted infections like chlamydia, a single dose of azithromycin is often sufficient to treat the infection.
Always complete the full course of azithromycin as prescribed, unless otherwise directed by your healthcare provider, to ensure the infection is fully treated and to prevent complications. If you have any questions or concerns about your azithromycin treatment regimen, consult with your healthcare provider for personalized advice and guidance.
Azithromycin has a relatively long half-life, which means it stays in the body for an extended period after the last dose.
On average, it takes around 68 hours (approximately three days) for azithromycin to be eliminated from the body.
Even though azithromycin is mostly cleared from the body within a few days, its antimicrobial effects can last for several days after completing the treatment course.
This is why azithromycin is often prescribed for short courses, as it provides sustained activity against bacteria even after the medication has been stopped.
It's generally recommended to avoid alcohol while taking azithromycin. Drinking alcohol may increase the risk of certain side effects, such as gastrointestinal symptoms like nausea, vomiting, and diarrhea.
Additionally, alcohol can potentially interfere with the effectiveness of the medication in treating the infection.
It's generally safe to take other medications while on azithromycin, but it's essential to be cautious and inform your healthcare provider about all other medications, supplements, and over-the-counter drugs you are taking. Some medications may interact with azithromycin, potentially affecting its effectiveness, increasing the risk of side effects, or causing other health issues.
Here are some types of medications that may interact with azithromycin:
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Antacids containing aluminum or magnesium may reduce the absorption of azithromycin if taken together. It's best to take azithromycin at least 1 hour before or 2 hours after taking an antacid.
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Azithromycin may enhance the effects of anticoagulant medications like warfarin, increasing the risk of bleeding. Regular monitoring of blood clotting parameters may be necessary.
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Using azithromycin with other antibiotics may increase the risk of gastrointestinal side effects or alter the effectiveness of one or both medications.
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Certain medications used to treat heart conditions, such as digoxin, may interact with azithromycin, potentially affecting heart rhythm or increasing the risk of side effects.
Azithromycin is generally well-tolerated, but like any medication, it can cause side effects in some people. The most common side effects of azithromycin include:
- Gastrointestinal symptoms
- Headache
- Dizziness
- Rash
- Changes in taste
- Fatigue
LifeMD offers patients access to licensed healthcare providers who can offer guidance on healthcare concerns. Through our virtual platform, you can schedule same-day appointments and meet with a medical professional from the comfort of your home.
Your healthcare provider may prescribe you a medication if appropriate, and order it to your local pharmacy for your convenience. Skip the waiting room with LifeMD, make an appointment today to get started.