Available Dosages
| SKU: | 378 |
|---|---|
| Generic For: | Ery Tab |
| Active Ingredient: | Erythromycin |
| Manufacturer: | Alembic, India |
Buy Althrocin 500 mg (Erythromycin) Antibiotic for Infections
Althrocin 500mg is a prescription oral antibiotic tablet containing Erythromycin Stearate 500mg, the higher-dose formulation of this broad-spectrum macrolide antibiotic, used for the treatment of moderate-to-severe bacterial infections, sexually transmitted infections caused by Chlamydia trachomatis, and serious upper and lower respiratory tract infections where the full maximum daily macrolide dose is required. Manufactured by Alembic Pharmaceuticals, Althrocin 500mg builds on the same clinical pharmacology and bacteriostatic-to-bactericidal activity as the 250mg formulation but delivers double the unit dose — permitting a twice-daily (500mg bid) rather than four-times-daily regimen for certain indications, or enabling the 2000mg per day total dose required for the treatment of chlamydia and severe respiratory tract infections. For patients who require high-dose macrolide therapy, the larger tablet unit reduces the daily tablet burden and provides a more convenient treatment schedule.
What is Althrocin 500mg?
Althrocin 500mg is an oral film-coated tablet containing Erythromycin Stearate 500mg — the double-strength formulation of the Althrocin range, used in clinical situations that call for either a higher total daily dose or a simplified twice-daily dosing schedule. Erythromycin is one of the most broadly active oral antibiotics available for gram-positive and atypical bacterial infections. At the 500mg unit dose, two tablets daily produce 1000mg/day for mild-to-moderate infections, while the same tablet taken four times daily (the maximum dosing frequency) provides the 2000mg/day required for the treatment of Legionella pneumonia, severe Mycoplasma pneumonia, or Chlamydia trachomatis infections. The 10-tablet pack accommodates a complete 5-day course at the twice-daily dosing frequency (1000mg/day) or a full Chlamydia treatment course, making it a practical unit size for short-course antibiotic prescriptions.
Manufacturer: Althrocin 500mg is manufactured by Alembic Pharmaceuticals, whose Althrocin brand is the most widely dispensed Erythromycin stearate product in India.
Active Component of Althrocin 500mg and its Working
Althrocin 500mg contains Erythromycin, a macrolide antibiotic used to treat a wide range of bacterial infections affecting the throat, lungs, skin, ears, and respiratory tract. It works by binding to the 50S ribosomal subunit of bacteria and blocking protein synthesis, which prevents bacteria from growing and multiplying. As the bacteria lose their ability to produce essential proteins, the infection gradually clears from the body. Erythromycin is effective against many gram-positive and some gram-negative bacteria and is often prescribed when patients are allergic to penicillin. The medicine should be taken as directed to ensure complete elimination of bacteria and reduce antibiotic resistance.
Clinical Uses of Erythromycin 500mg
Althrocin 500mg is indicated for the treatment of moderate-to-severe infections requiring high-dose Erythromycin, including Legionella pneumophila pneumonia (Legionnaires’ disease) where Erythromycin is a preferred macrolide at 2000mg/day in four divided doses; Chlamydia trachomatis infections — including urogenital chlamydia, chlamydial conjunctivitis, and chlamydial pneumonia in neonates (via the mother’s treatment during pregnancy) — where 500mg four times daily for 7 days is the established WHO-endorsed treatment protocol; and severe Mycoplasma pneumoniae pneumonia, where maximum macrolide dosing is required. At 500mg twice daily, Althrocin 500mg is also used for moderate skin and soft tissue infections, streptococcal pharyngitis in penicillin-allergic patients requiring a simple twice-daily regimen, and moderate-severity community-acquired pneumonia caused by susceptible organisms.
Comparing Althrocin 500mg and Erythrocin 500mg: Brand vs Generic Differences
Zithromax is a branded form of Azithromycin, while Althrocin is a generic brand of Erythromycin manufactured by Alembic Pharmaceuticals. Both belong to the macrolide antibiotic class and are used to treat bacterial infections, including respiratory, skin, throat, and ear infections. However, Zithromax is generally preferred because it has a longer duration of action, once-daily dosing, and fewer gastrointestinal side effects. Althrocin may require multiple doses per day and is more likely to cause stomach upset, nausea, or diarrhea. Zithromax also has fewer drug interactions and better patient compliance compared to erythromycin-based medicines like Althrocin.
Related strengths and products: Althrocin 250mg is available for patients where the 250mg unit dose is more appropriate — including four-times-daily regimens for mild infections or prokinetic applications requiring sub-antibiotic doses. For azithromycin-based antibiotic therapy with the shortest possible course (single-dose or 3-day regimens), Azee 1000mg and higher Azee strengths are available.
Key Benefits of Althrocin 500mg
Althrocin 500mg enables simplified twice-daily dosing for bacterial infections where 1000mg/day macrolide coverage is adequate, significantly improving treatment adherence compared with the four-times-daily schedule required with the 250mg formulation. The ability to achieve the full 2000mg daily dose for severe infections — with just four tablets per day rather than eight 250mg tablets — also substantially reduces the daily tablet burden when maximum-dose Erythromycin therapy is required. For Chlamydia trachomatis treatment in pregnant women — where Azithromycin may be preferred but Erythromycin remains a guideline-endorsed alternative — Althrocin 500mg provides the established treatment option at a dose and schedule validated in clinical practice. Alembic’s manufacturing quality ensures consistent drug content and bioavailability across all tablets in the 500mg unit.
Usage warnings and precautionary advice for using Erythromycin 500mg
All precautions applicable to Erythromycin at the 250mg dose apply with greater clinical importance at the 500mg dose and higher total daily exposures. The CYP3A4 inhibition by Erythromycin is dose-dependent: at the higher doses achievable with 500mg dosing, the magnitude of drug interactions with warfarin, statins, cyclosporine, tacrolimus, carbamazepine, and other CYP3A4 substrates is increased. The QT prolongation risk is similarly dose-dependent; concurrent use with other QT-prolonging agents is particularly hazardous at 2000mg/day and requires ECG monitoring. Liver toxicity — specifically cholestatic hepatitis — has been reported with prolonged high-dose Erythromycin use; monitoring of liver function tests is advisable in patients receiving extended high-dose courses. Erythromycin is considered relatively safe during pregnancy and has an established use in pregnant women for Chlamydia treatment, but should be used only when clearly indicated.
Side effects of Erythromycin 500mg
The gastrointestinal tolerability of Erythromycin is the principal clinical limitation of the 500mg dose: nausea, vomiting, diarrhoea, and abdominal cramping are more pronounced at higher total daily doses due to the dose-dependent motilin receptor stimulation. Patients should be warned to expect some degree of GI disturbance, particularly in the first days of treatment. The reduction in GI side effects achievable by dosing with food comes at the cost of reduced absorption; enteric-coated formulations or film-coated tablets taken on an empty stomach represent the best balance of absorption and tolerability. QT prolongation and the risk of cardiac arrhythmia — including torsades de pointes — is a real, dose-dependent concern with high-dose intravenous Erythromycin; with oral use at standard doses, the risk is lower but not absent, particularly in patients with underlying cardiac disease or concurrent use of other QT-active drugs.
Benefits of Buying Althrocin 500mg Online from AllDayChemist
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Proper dosage and usage guide of Erythromycin 500mg
Take Althrocin 500mg orally at the dose and frequency prescribed by your physician. For Chlamydia treatment: 500mg four times daily for 7 days, or as prescribed. For moderate respiratory infections: 500mg twice daily for 7 to 14 days. Take on an empty stomach where possible, 30 to 60 minutes before meals, to maximise absorption; if significant gastrointestinal side effects occur, taking with a small amount of food is acceptable, with the understanding that peak plasma levels will be reduced. Swallow tablets whole with a full glass of water. Complete the entire prescribed course without interruption, even if symptoms improve after a few days; premature discontinuation risks incomplete bacterial eradication and potential development of resistance. Store at room temperature below 25°C, away from moisture and light.
What is Althrocin 500 mg used for, and why do doctors recommend it for Antibiotics?
Althrocin 500 mg contains erythromycin, an antibiotic that fights bacterial infections. Doctors recommend it to treat infections of the chest, throat, skin, and urinary tract. It works by stopping bacteria from growing and spreading in your body. Your doctor will prescribe this medicine based on the type and severity of your infection. It is an effective choice when other antibiotics may not be suitable for your condition.
How does Althrocin 500 mg treat Antibiotics, and what does it do inside the body?
Erythromycin, the active ingredient in Althrocin 500 mg, stops bacteria from making proteins they need to survive. Without these proteins, the bacteria cannot grow or multiply, allowing your immune system to clear the infection. This medicine targets a wide range of bacterial infections throughout your body. It does not directly kill the bacteria but prevents them from spreading. Over time, your body's natural defenses eliminate the weakened bacteria completely.
When is the best time of day to take this tablet, and does it matter?
Take Althrocin 500 mg exactly as your doctor prescribes, usually two to four times daily. You can take it with or without food, though taking it with food may reduce stomach upset. Spacing doses evenly throughout the day helps maintain steady levels of the medicine in your body. Set reminders on your phone to help you remember each dose. Never skip doses or double up to catch up on a missed dose without asking your pharmacist first.
Will this tablet affect my ability to drive a car or concentrate at work?
Althrocin 500 mg does not typically cause drowsiness or affect your ability to drive or work. Most people experience no impairment to concentration or alertness from this antibiotic. However, some patients report dizziness or vertigo as a side effect, which could affect driving safety. If you experience any dizziness or blurred vision, avoid driving until the symptom passes. Always discuss any unusual side effects with your doctor or pharmacist before operating machinery.
Does the dose need to change if I have kidney or liver problems?
If you have kidney or liver problems, tell your doctor before starting Althrocin 500 mg. Your liver processes this medicine, so existing liver disease may require a lower dose or close monitoring. Kidney problems are generally less concerning with this antibiotic, but your doctor may still adjust treatment. Your doctor will review your medical history and decide if this medicine is safe for you. Never change your dose without medical guidance, even if you develop new kidney or liver symptoms.
What should I do if this tablet upsets my stomach or makes me feel sick?
Stomach upset is a common side effect of erythromycin. Take this tablet with food or milk to reduce nausea and discomfort. If upset stomach persists, tell your doctor before stopping the medicine on your own. Your doctor may suggest a different dosing schedule or recommend medication to ease stomach irritation. Drinking plenty of water and eating small, regular meals also helps minimize digestive distress while taking this antibiotic.
How long before I notice a difference with Althrocin 500 mg, and what will I feel?
Most people begin feeling better within two to three days of starting Althrocin 500 mg. Symptoms like fever, cough, or pain typically improve first as the infection weakens. You may notice increased energy and reduced discomfort within a week. However, complete recovery depends on the type and severity of your infection. Always finish the entire course of treatment even if you feel better, because stopping early can allow bacteria to return stronger.
What should I watch out for while using Althrocin 500 mg, and when should I call my doctor?
Contact your doctor immediately if you experience severe stomach pain, persistent vomiting, diarrhea, chest pain, or difficulty breathing. Yellowing of the skin or eyes, dark urine, or pale stools signal liver problems and need urgent attention. Severe rashes, swelling of the face, or throat tightness indicate an allergic reaction requiring emergency care. Hearing loss or ringing in the ears are rare but serious and must be reported. Do not wait if symptoms feel unusual or worsening during your treatment course.
Is the generic version, Althrocin 500 mg just as good as the brand Ery tab?
Althrocin 500 mg contains the same active ingredient, erythromycin, as the brand-name Ery tab, at the same strength. Both tablets work the same way in your body and treat infections equally well. The main difference is cost; generic versions like Althrocin are more affordable because they do not carry brand development expenses. Your doctor or pharmacist can confirm that this medicine provides an identical therapeutic benefit. Many patients switch to generic versions without any change in effectiveness or results.
How long will my doctor keep me on Althrocin 500 mg, and what happens if I stop?
Your doctor typically prescribes Althrocin 500 mg for seven to fourteen days, depending on your infection type and severity. Completing the full course is crucial because stopping early allows bacteria to survive and develop resistance. Stopping suddenly does not cause withdrawal or harm, but the infection may return worse and harder to treat. Never discontinue this medicine without permission from your doctor, even if symptoms completely disappear. Once treatment ends, your doctor will monitor you to ensure the infection does not return.
How does Althrocin 500 mg compare to Cipmox 250 (amoxicillin), and when would a doctor choose one over the other?
Althrocin 500 mg and Cipmox 250 (amoxicillin) are both antibiotics but belong to different families. Erythromycin is a macrolide antibiotic often used when patients are allergic to penicillin-based drugs like amoxicillin. Amoxicillin is typically first-line for many common bacterial infections. Your doctor chooses based on your allergy history, the specific bacteria causing infection, and other medicines you take. Both are effective, but your doctor's choice depends on what works best for your individual situation.
Are there any diet, exercise, or lifestyle changes that can help Althrocin 500 mg work better?
No specific diet or exercise changes improve how Althrocin 500 mg works in your body. However, staying well-hydrated by drinking plenty of water supports your immune system during infection recovery. Get adequate rest to help your body fight the infection more effectively. Avoid alcohol while taking this antibiotic, as it may increase stomach upset and affect medication absorption. Eat balanced meals with protein and nutrients to give your immune system the fuel it needs to heal faster.
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