What is Althrocin 125mg?
Althrocin contains Erythromycin, a macrolide antibacterial antibiotic that is widely used in the treatment of bacterial infections. This antibiotic is effective in treating respiratory infections, skin and ear infections, as well as certain sexually transmitted diseases. Althrocin can be a good option for Australians who need antibiotics, particularly those with penicillin allergies.
How Does Althrocin 125mg Work?
Erythromycin inhibits bacterial protein synthesis. This stops bacteria from growing and allows the immune system to eliminate the infection. The drug targets many bacteria, including strains of Gram-positive or Gram-negative bacteria.
The dosage of 125mg is often prescribed to children and adults who need a lower dose, or when the dosing must be altered according to medical advice.
Key Benefits of Using Althrocin 125mg
- Antibiotic with a broad spectrum, Effective against many bacterial infections
- Alternatives to penicillin for patients with allergies
- It is available in convenient tablet and suspension forms
- Side effects are manageable and well-tolerated
- Treatment of respiratory infections, skin, and soft tissues
Who Should Use Althrocin 125mg?
Althrocin 125mg is prescribed to treat:
- If you or your child has a mild-moderate bacterial infection, it is important to seek medical attention.
- Alternative antibiotics for patients allergic to penicillin
- People with infections of the respiratory tract, such as bronchitis and pneumonia
- Patients suffering from ear, skin, and throat infections
- Under medical supervision, treatment of sexually transmitted diseases is available.
To avoid resistance, always follow the instructions of your doctor and finish all treatments.
Dosage and Administration Guide
| Patient Group | Typical Dose | Frequency | Duration |
| Children | 125mg | Every 6 hours (4 times daily) | 7-14 days or as prescribed |
| Adults | 250mg or higher | Every 6 hours | As prescribed |
Instructions for use:
- Tablets should be taken with water.
- To improve absorption, eat on an empty stomach (at least 1 hour before or after meals).
- Even if your symptoms start to improve, you should still complete the course.
- Don’t double or skip doses.
Side Effects and Safety Information
Common side effects:
- Nausea or vomiting
- Stomach cramps or diarrhoea
- Mild skin rash
- Headache
Serious but rare:
- Allergic reactions (rash, swelling, difficulty breathing)
- Liver problems (jaundice, dark urine)
- Severe diarrhoea (possible Clostridium difficile infection)
Precautions:
- If you suffer from liver or kidney diseases, tell your doctor.
- Use with caution with some medications.
- Avoid using erythromycin and macrolide antibiotics if you are allergic.
Althrocin 125mg vs Other Antibiotics:
| Feature | Althrocin 125mg (Erythromycin) | Amoxicillin | Azithromycin |
| Antibiotic Class | Macrolide | Penicillin | Macrolide |
| Spectrum of Activity | Broad (Gram-positive and some Gram-negative) | Broad (Gram-positive and Gram-negative) | Broad (similar to erythromycin) |
| Dosing Frequency | 4 times daily | 3 times daily | Once daily |
| Food Interaction | Best on empty stomach | Can be taken with food | With or without food |
| Common Side Effects | GI upset, rash | Allergic reactions, GI upset | GI upset, headache |
| Suitable for Penicillin Allergies | Yes | No | Yes |
Storage and Handling Tips
- Keep your products in a dry, cool place that is below 25°C.
- Protect tablets from moisture by storing them in their original containers.
- Children should not be allowed to touch the product.
- After the expiry date, do not use.
Frequently Asked Questions (FAQs)
What infections can Althrocin 125mg treat?
This medicine treats respiratory infections as well as skin, ear, and a few sexually transmitted illnesses.
How quickly does Althrocin 125mg start working?
The symptoms usually improve in 2-3 days. However, it is important to finish the entire course.
Why is erythromycin a good choice for penicillin-allergic patients?
It belongs to another class of antibiotics, the macrolides. There is minimal cross-reactivity.
How should I take Althrocin 125mg for the best absorption?
It is best taken on an empty stomach, with plenty of water.
What are the common side effects to watch for?
Common but mild symptoms include nausea, mild diarrhoea, and a mild rash.
Can I drink alcohol while on Althrocin?
Avoid alcohol if you want to minimize the risks of liver damage and side effects.
What should I do if I miss a dose?
If you’re nearing the next dose, take it immediately. Don’t double up.
Is Althrocin safe for children?
Yes, the 125mg dosage is commonly prescribed to paediatric patients on medical advice.
Why is completing the antibiotic course important?
Early stopping can result in antibiotic resistance and the recurrence or infection.
Can Althrocin interact with other medications?
Yes, tell your doctor about all medications you are taking, including statins and heart medication.
Disclaimer: The content of this website is for information purposes only. It does not constitute professional medical advice. Before starting an antibiotic treatment or altering the current one, consult your doctor.

















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