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Zithromax, Azithromycin (generic): Frequently Asked Questions


Azithromycin is an antibiotic drug. In the US, its brand name is Zithromax. It is sold under many other brand names in other countries. Antibiotics fight infections caused by bacteria. Azithromycin is used to fight opportunistic infections in people with HIV. Pfizer manufactures it. --------------------------------------------------------------------------------
Azithromycin is in a group of drugs called macrolide antibiotics. Azithromycin fights bacteria in the body. Azithromycin is used to treat many different types of infections caused by bacteria, such as respiratory infections, skin infections, ear infections, and sexually transmitted diseases. Azithromycin may also be used for purposes other than those listed in this medication guide.

What is the difference between a brand Zithromax drug and a Generic Zithromax drug?

A Generic Zithromax drug is a medication for which the original manufacturer has lost patent protection. Because of this, other manufacturers are allowed to produce and sell exactly the same medication at a lower, more competitive price. The generic Zithromax drug is exactly the same medication as the original brand name drug, simply made by another company. Due to strict regulations on the generic drug industry, these drugs must provide the same therapeutic effect as the brand Zithromax drug. Zithromax Faq

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How should zithromax be used?

Azithromycin comes as a tablet and oral suspension (liquid) to take by mouth. It is usually taken with or without food once a day for 1-5 days. To help you remember to take azithromycin, take it around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take azithromycin exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor. ...

Why is zithromax prescribed?

Azithromycin is used to treat certain infections caused by bacteria, such as bronchitis; pneumonia; sexually transmitted diseases (STD); and infections of the ears, lungs, skin, and throat. Azithromycin is in a class of medications called macrolide antibiotics. It works by stopping the growth of bacteria. Antibiotics will not work for colds, flu, or other viral infections.
Zithromax is an antibacterial related to erythromycin. It is used for adults to treat certain mild to moderate skin infections; upper and lower respiratory tract infections, including pharyngitis (strep throat), tonsillitis, worsening of chronic obstructive pulmonary disease.

How Serious Are The Problems Experienced By Zithromax® Users?

The FDA has required Pfizer to add to their warning that abnormal liver functioning, jaundice, necrosis and hepatic (liver) failure and death have been reported by persons taking the drug. Pfizer recently agreed to the FDA demands for label changes but have known for a number of years of the severity of the liver toxicity of Zithromax® after receiving reports from doctors of damage. ...


Azithromycin is available in capsules or tablets of 250 milligram (mg. ) There is also a 600 mg tablet. It is also available in powder and liquid forms. To fight most infections, the dose for adults is 500 mg on the first day, and then 250 mg each day for 4 more days. The dose used to prevent MAC infection is 1200 mg or 1250 mg once a week. Azithromycin tablets can be taken with or without food. Take it with plenty of water. ...

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Do Zithromax® Users Have A Right To Be Compensated For Any Health Problems Caused By Zithromax®?

If Zithromax® has caused you or a loved one significant physical damage, you may be entitled to a large compensatory award. You must protect those legal rights before they lapse by passage of time and are barred by various states' statutes of limitations. You should contact an attorney to evaluate your rights. Many valuable legal rights are lost everyday because of people's failure to take legal precautions.

What storage conditions are needed for zithromax ?

Keep zithromax in the container it came in, tightly closed, and out of reach of children. Store the tablets at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Keep liquid medicine tightly closed at room temperature or in the refrigerator, and throw away any unused medication after 10 days. Do not freeze. Talk to your pharmacist about the proper disposal of your medication. ...

What type of side effects have Zithromax® users experienced?

The most dangerous side effects of Zithromax® are liver damage leading to liver failure, liver tranplant or death. In the early stages of liver damage in Zithromax® patients, symptoms of liver damage may be difficult to detect. In later stages, the symptoms may include yellow eyes, abdominal pain, nausea, clay colored stools and dark urine. In rare cases, Zithromax® patients have suffered severe liver damage resulting in death or liver transplant surgery

What will happen if the antibiotics like Azithromycin and roxithromycin are taken immediately after food?

The antibiotics like Azithromycin and roxithromycin want to take 1 hour before meal or 2 hour after meal since food reduces the absorption of the medicine. Azithromycin should not be taken at the same time as aluminum- or magnesium- based antacids because antacids will bind the azithromycin and prevent it from being absorbed from the intestine.

What side effects can zithromax cause?

Azithromycin may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away: upset stomach diarrhea vomiting stomach pain mild skin rash Some side effects can be serious. The following symptoms are uncommon, but if you experience any of them, call your doctor immediately: severe skin rash hives itching difficulty breathing or swallowing swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs hoarseness yellowing of the skin or eyes rapid, pounding, ...


Azithromycin is broken down by the liver. It can interact with other drugs that also use the liver. Scientists have not yet studied all the possible interactions. Azithromycin probably interacts with some blood thinners, heart medications, seizure medications, and other antibiotics. Be sure your doctor knows about all the medications you are taking. Your doctor may need to monitor you carefully if you are taking azithromycin and the protease inhibitor ritonavir. ...

What should I do if I forget a dose of zithromax?

Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.


Azithromycin is used for mild or moderate bacterial infections. It works against several different bacteria, especially chlamydia, hemophilus and streptococcus. These bacteria can infect the skin, nose, throat, and lungs. They can also be transmitted through sexual activity and cause infections in the genital area. Many germs live in our bodies or are common in our surroundings. A healthy immune system can fight them off or keep them under control. However, HIV infection can weaken the immune system. ...

What is the recommended dose for Zithromax?

The normal dose of Zithromax is 500 milligrams in a single dose the first day. This is followed by 250 milligrams once daily for the next 4 days. Alternatively, patients with chronic obstructive pulmonary disease may be prescribed 500 milligrams a day for 3 days. For children aged 6 months and up, treatment may be given three ways. One option is a single dose of 30 milligrams per 2.2 pounds of body weight. Another option is a dose of 10 milligrams per 2.2 pounds given each day for 3 days.

How should I take azithromycin?

Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. The dose and length of treatment with azithromycin may not be the same for every type of infection. Azithromycin capsules must be taken on an empty stomach with a full glass (8 ounces) of water. Take the capsule at least 1 hour before or 2 hours after eating a meal. Azithromycin tablets or powder oral suspension may be taken with or without food. ...

How do I use Zithromax?

Take Zithromax capsules at least 1 hour before or 2 hours after a meal. Zithromax tablets and oral suspension can be taken with or without food If you are using single-dose packets of Zithromax powder for oral suspension, mix the entire contents of each packet with 2 ounces of water, drink immediately, then add an additional 2 ounces of water, mix again, and drink to make sure you've taken the entire dose.

What drug(s) may interact with azithromycin?

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What should I do in case of overdose with Zithromax?

Although no specific information on Zithromax overdose is available, any medication taken in excess can have serious consequences. If you suspect an overdose, seek medical attention immediately. If you forget a dose, take the forgotten dose of Zithromax as soon as you remember. If you don't remember until the next day, skip the dose and go back to your regular schedule. Never try to "catch up" by doubling the dose. ...

What are the potential side effects from Zithromax?

Frequent side effects from Zithromax may include: Abdominal pain, diarrhea or loose stools, nausea or vomiting. Blood in the stools, chest pain, dizziness, drowsiness, fatigue, gas, headache, heart palpitations, indigestion, itching, jaundice, kidney infection, light sensitivity, rash, severe allergic reaction including swelling, vaginal inflammation, vertigo, yeast infection.

What is the most important information I should know about azithromycin?

Do not use azithromycin if you have ever had an allergic reaction to this medicine or similar drugs such as erythromycin (E-Mycin, Ery-Tab, E.E.S. ), clarithromycin (Biaxin), or other macrolide antibiotics. Before taking azithromycin, tell your doctor if you have: liver disease; kidney disease; a heart rhythm disorder; or a history of Long QT syndrome. If you have any of these conditions, you may not be able to use azithromycin, or you may need a dosage adjustment or special tests during treatment. ...

What should I discuss with my doctor before taking Zithromax?

If you have ever had an allergic reaction to Zithromax or to similar antibiotics such as erythromycin.Zithromax may cause a potentially life-threatening form of diarrhea called pseudomembranous colitis. If this diarrhea continues, check with your doctor immediately.

Is it ok to take an antibiotic at 28 weeks, z pack- zithromax? I have had a cough for about 3 weeks. Should I try and stick it out and hope it gets better or take the medicine?

If your cough is due to a bacterial infection then it is correct to take an antibiotic. Zithromax (erythromycin) is okay to take during pregnancy.
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