Erythrocin (Erythromycin Stearate)

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Erythrocin Brand
Dosage Quantity & Price
Erythromycin Stearate (Generic alternate to Erythrocin) Generic
Dosage Quantity & Price
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Erythrocin Stearate is a prescription antibiotic used to treat a variety of bacterial infections. It may be used alone or in combination with other medications to achieve the best possible outcome. Erythromycin can be used to treat bacteria responsible for causing infections of the skin and upper respiratory tract, including Streptococcus, Staphylococcus, Haemophilus and Corynebacterium genera.

Erythromycin Stearate, commonly known as Erythrocin, is an antibiotic used to treat bacterial infections. It belongs to the macrolide family of antibiotics and works by blocking protein synthesis in bacteria, thereby stopping the spread and growth of the infection.

Erythrocin, or Erythromycin Stearate, is a semi-synthetic macrolide antibiotic derived from the bacterium Streptomyces erythreus. Erythromycin Stearate has been used for many years as an effective treatment for illnesses such as bronchitis, pneumonia, and skin infection.

Uses and Dosage

Erythrocin Stearate comes in the form of Film Coated Tablet to be taken orally with food or milk and should be taken exactly as prescribed by your doctor. We advise you to take this medication on an empty stomach, at least 30 minutes before or 2 hours after food. However, if this medication upsets your stomach, you take it with food or milk.

Erythrocin has a bitter taste if it is crushed. Therefore, you should take the medication as directed by your doctor and not chew or crush the tablets. Swallowing the tablets whole is the best way to ensure that the full dose is taken, and the medication is effective.

The dosage and length of treatment of Erythrocin Stearate is based on the medical condition and response to treatment of the patient. In children, the dosage is also based on their age and weight. In general, however, the usual adult dosage of Erythrocin Stearate is 250 mg taken every 6 hours, or 500 mg taken every 12 hours.

Side effect

Common Side Effects

  • Rash or hives
  • Itching
  • Red, swollen, blistered, or peeling skin with or without fever
  • Wheezing
  • Tightness in the chest or throat
  • Trouble breathing, swallowing, or talking
  • Unusual hoarseness
  • Swelling of the mouth, face, lips, tongue, or throat
  • Feeling sick (nausea)
  • Being sick (vomiting)
  • Diarrhea
  • Stomach cramps
  • Loss of appetite
  • Bloating and indigestion

Serious Side Effects

  • A skin rash
  • Severe stomach pain – this can be a sign of pancreas problems
  • Yellowing of whites of the eyes or the skin
  • Seeing or hearing things that are not there (hallucinations)
  • Ringing in the ears, temporary hearing loss, or feeling unsteady on your feet

Form and strength

Erythrocin is available in the following form and strength:

Erythrocin: Film Coated Tablet

  • 250 mg

Erythromycin Stearate: Film Coated Tablet

  • 250 mg


  • Erythrocin Stearate should not be used during pregnancy unless the potential benefit outweighs the potential risk to the fetus. If you are pregnant or are planning to become pregnant, you should discuss the risks and benefits of using Erythrocin STEARATE with your doctor. This medication can pass into breast milk, so breastfeeding mothers should consult their doctor before taking Erythrocin Stearate.
  • Prolonged or repeated use of erythromycin may lead to overgrowth of bacteria or fungi not susceptible to the medication. If a superinfection occurs, erythromycin should be discontinued, and an alternative treatment should be started. It is important to finish the entire course of treatment, even if the symptoms improve, as stopping the medication too soon may cause the infection to come back.
  • Erythromycin is not recommended for use in patients with known hypersensitivity to this antibiotic, as well as those taking terfenadine, astemizole, pimozide, or cisapride. If a patient is taking any of these medications, an alternative antibiotic should be considered.
  • It is important to follow your doctor's instructions and take the medication as prescribed. Do not stop taking the medication before finishing the entire course of treatment, even if you feel better. Stopping the medication too soon may cause the infection to come back.

Frequently Asked Questions (FAQ)

Should erythromycin be taken with or without food?

Generally, it's better to take erythromycin with food so it does not upset your stomach.

How long erythromycin should be used?

It is usually given 2 to 4 times a day. Your doctor will advise you on how long to take erythromycin for (usually 5 to 10 days), but depending on the infection, it could be longer. Always take your erythromycin exactly as your doctor has told you.

Why does erythromycin make you hungry?

The motilin agonist, erythromycin, induces gastric phase III of the migrating motor complex, which in turn generates hunger peaks.


It's important to purchase Erythrocin from verified Canadian pharmacy.

Additional information

Generic name:

Erythromycin Stearate


Film Coated Tablet, Tablet



Quantities Available: