Zithromax Suspension (Azithromycin)

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Zithromax Suspension Brand
Dosage Quantity & Price
Azithromycin (Generic alternate to Zithromax Suspension) Generic

We don't sell this generic-version medication.

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Table of contents:

Zithromax Suspension is a prescription medicine used to treat various bacterial infections, including respiratory tract infections, skin and soft tissue infections, and sexually transmitted infections.

Zithromax contains the active ingredient azithromycin in a dry powder form, which is then mixed with water to create an oral suspension. It belongs to the class of macrolide antibiotics. Azithromycin works to inhibit bacterial protein synthesis, which prevents bacterial growth, and leads to their death.

Zithromax cannot work for viral infections (such as common cold, flu). Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness.

Use and Dosage

Take Zithromax Suspension orally once daily with or without food as directed by your doctor, based on your medical condition and response to treatment. The dosage may also be based on weight for children. Use a special measuring device to carefully measure the dose and shake the suspension well before using. If your child vomits the 1-day treatment dose within 30 minutes, check with your doctor to see if you need to repeat the dose.

To ensure the best effect, take this antibiotic at evenly spaced times each day, and continue taking Zithromax Suspension until the full prescribed amount is finished, even if symptoms disappear after a few days. Stopping the medication too early may cause bacteria to continue to grow and result in a return of the infection. Avoid taking antacids containing aluminum or magnesium at the same time as azithromycin and wait at least 2 hours before or after taking azithromycin.

Side Effects

Common Side Effects of Zithromax Suspension (Azithromycin):

  • Diarrhea
  • Headache
  • Nausea
  • Stomach pain
  • Vomiting

Serious Side Effects of Zithromax Suspension (Azithromycin):

  • Blisters or peeling
  • Dark-colored urine
  • Dizziness
  • Extreme tiredness
  • Fainting
  • Fast, pounding, or irregular heartbeat
  • Fever and pus-filled, blister-like sores, redness, and swelling of the skin
  • Flu-like symptoms
  • Hives
  • Hoarseness
  • Itching
  • Lack of energy
  • Loss of appetite
  • Pain in the upper right part of the stomach
  • Pink and swollen eyes
  • Rash with or without a fever
  • 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)
  • Swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs
  • Unusual bleeding or bruising
  • Unusual muscle weakness or difficulty with muscle control
  • Vomiting or irritability while feeding (in infants less than 6 weeks old)
  • Wheezing or difficulty breathing or swallowing
  • Yellowing of the skin or eyes

Forms and Strength

Zithromax Suspension (Azithromycin) is available in the following forms and strength:

Zithromax Suspension: Oral Suspension

  • 100mg/5mL
  • 200mg/5mL


  • Allergic reactions: Some individuals may be allergic to azithromycin and may experience serious allergic reactions, including difficulty breathing, swelling of the face, lips, tongue, or throat.
  • Liver problems: Zithromax Suspension may cause liver problems, especially in individuals with a history of liver disease or those taking other medications known to affect the liver.
  • QT prolongation: Azithromycin may cause a rare but serious heart rhythm problem called QT prolongation. This can lead to fainting or irregular heartbeat and may be especially concerning in individuals with underlying heart conditions.
  • Bacterial resistance: Overuse or improper use of antibiotics like azithromycin can lead to bacterial resistance, which can limit the effectiveness of the medication in the future.
  • Other medications: Zithromax Suspension may interact with other medications, such as antacids and blood thinners, inform your healthcare provider of all medications you are currently taking.
  • Kidney problems: Azithromycin may cause kidney problems, especially in individuals with pre-existing kidney disease.
  • Myasthenia gravis: Zithromax Suspension may worsen the muscle weakness associated with myasthenia gravis, a condition that affects the nerves and muscles.
  • Pregnancy and breastfeeding: Zithromax Suspension is considered safe to use during pregnancy and breastfeeding but discuss potential risks with a healthcare provider before using the medication.
  • Diarrhea: Azithromycin may cause diarrhea, which can be mild or severe and may be a sign of a new infection. If you experience watery or bloody diarrhea, contact your healthcare provider as soon as possible.

Frequently Asked Questions (FAQ)

Can Zithromax Suspension be taken with food or on an empty stomach?

Zithromax Suspension (azithromycin) can be taken with or without food. Taking it with food may help to reduce stomach upset and improve absorption of the medication.

How long does it take for Zithromax Suspension to start working?

The onset of action for Zithromax Suspension can vary depending on the condition being treated and the individual's response to the medication. In general, it may take several days for the full effect of the medication to be seen. Complete the full course of treatment as prescribed by a healthcare provider.

Should I stop taking Zithromax Suspension if I start feeling better?

Complete the full course of treatment with Zithromax Suspension even if symptoms improve or disappear before the treatment is complete. Stopping treatment early can increase the risk of the infection returning or becoming antibiotic-resistant.

Can Zithromax Suspension be used to treat viral infections?

Zithromax Suspension is an antibiotic and is only effective in treating bacterial infections. It is not effective in treating viral infections, such as the common cold or flu.


It's important to purchase Zithromax Suspension from verified Canadian pharmacy.

Additional information

Generic name:



Oral Suspension


100mg/5mL, 200mg/5mL

Quantities Available: