maxamp 250mg injection - Ampicillin (250mg) medicine

Ampilin 250mg Tablet: Complete Guide to Uses, Side Effects, and Safety

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🏭 Max India Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Oct 16, 2026
⚠️ Hepatotoxicity Risk 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for susceptible bacterial infections.
Reviewed by
SaathiMed Expert Panel | Oct 16, 2026
🩺
Medically Fact-Checked & Clinically Verified by SaathiMed Clinical Review Board
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026

When to Call Your Doctor IMMEDIATELY

  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing or wheezing
  • Severe skin rash, blistering, or peeling
  • Severe or persistent diarrhoea
  • Blood in stool or vomit
  • Yellowing of the skin or eyes
  • Decreased urine output
  • Unusual bleeding or bruising
  • Seizures

If experiencing severe symptoms, call emergency services immediately.

What is maxamp 250mg injection used for?

This medicine is an antibiotic used to treat various bacterial infections. It works by killing bacteria and is taken orally, usually every 6 hours. Complete the full course as prescribed.

  • Generic Name: Ampicillin (250mg)
  • Manufacturer: Max India Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 maxamp 250mg injection के बारे में (Hindi Summary)

उपयोग: यह दवा एक एंटीबायोटिक है जिसका उपयोग विभिन्न जीवाणु संक्रमणों के इलाज के लिए किया जाता है। यह श्वसन तंत्र, मूत्र मार्ग, त्वचा और गैस्ट्रोइंटेस्टाइनल संक्रमणों के इलाज में प्रभावी है। यह दवा केवल जीवाणु संक्रमणों के लिए काम करती है, वायरल संक्रमणों जैसे सर्दी-जुकाम के लिए नहीं। इस दवा को डॉक्टर के निर्देशानुसार पूरा कोर्स करना चाहिए।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में दस्त, मतली, उल्टी और त्वचा पर चकत्ते शामिल हैं। गंभीर दुष्प्रभाव दुर्लभ हैं लेकिन इनमें एलर्जी प्रतिक्रिया, सांस लेने में कठिनाई, और गंभीर त्वचा प्रतिक्रियाएं शामिल हो सकती हैं। यदि आपको कोई असामान्य लक्षण दिखे तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को लेने से पहले अपने डॉक्टर को अपनी सभी एलर्जी और अन्य दवाओं के बारे में बताएं। दवा को पूरे कोर्स तक लें, भले ही आप बेहतर महसूस करें। दवा को भोजन से पहले या बाद में ले सकते हैं, लेकिन पेट की परेशानी हो तो भोजन के साथ लें। दवा को ठंडी और सूखी जगह पर रखें। बच्चों की पहुंच से दूर रखें।

💡 Did You Know? Over 80% of the antiretroviral drugs used globally to combat AIDS are supplied by Indian pharmaceutical companies.

💊 maxamp 250mg injection Uses & Benefits

[{"condition":"Respiratory tract infections","description":"Used to treat infections of the throat, tonsils, sinuses, and lungs caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Urinary tract infections","description":"Effective against many bacteria that cause bladder and kidney infections.","evidence":"Well-established"},{"condition":"Skin and soft tissue infections","description":"Treats infections of the skin and underlying tissues caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Meningitis","description":"Used in combination with other antibiotics for certain types of bacterial meningitis.","evidence":"Well-established"},{"condition":"Gastrointestinal infections","description":"Effective against certain bacteria that cause stomach and intestinal infections.","evidence":"Well-established"},{"condition":"Endocarditis prophylaxis","description":"Used to prevent infection of the heart lining in at-risk patients undergoing certain dental or surgical procedures.","evidence":"Well-established"}]

Off-label uses: [{"condition":"Lyme disease","description":"Sometimes used off-label for early Lyme disease, though other antibiotics are preferred.","evidence":"Limited"},{"condition":"Helicobacter pylori eradication","description":"May be used as part of a combination regimen in some regions, but not a first-line agent.","evidence":"Limited"}]

Primary treatment for: Bacterial infections

Also treats: Respiratory tract infections, Urinary tract infections, Skin infections, Gastrointestinal infections, Meningitis

📋 Drug Information

Generic Name(s)Ampicillin (250mg)
Brand Namemaxamp 250mg injection
ManufacturerMax India Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI INFECTIVES
Action ClassCell wall active agent -Extended spectrum Penicillin
Route of AdministrationOral
StorageStore at room temperature between 15°C and 30°C (59°F to 86°F). Keep away from moisture and heat. Do not refrigerate. Keep in the original container, tightly closed.
Shelf Life24 months from the date of manufacture.
WHO GuidelineNot established from the available information.
ICMR GuidelineNot established from the available information.

👨‍⚕️ Doctor's Practical Tips

Evidence-based practical advice from experienced clinicians

1
Take this medicine on an empty stomach for best absorption, but if it upsets your stomach, take it with food.
2
Complete the full course of antibiotics as prescribed, even if you feel better after a few days.
3
Do not share this medicine with others, as it may not be appropriate for their condition.
4
Inform your doctor if you are taking blood thinners, methotrexate, or oral contraceptives, as interactions may occur.
5
If you develop a rash, itching, or difficulty breathing, stop the medicine and seek immediate medical attention.
6
Stay well hydrated while taking this medicine to help your kidneys flush out the antibiotic.
7
Avoid alcohol while taking this medicine to reduce the risk of stomach upset and to help your body fight the infection.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Fever with sore throat
This medicine is commonly prescribed for bacterial throat infections.
Likely Use
✅
Burning urination
This medicine is used for urinary tract infections.
Likely Use
❌
Common cold
This medicine is not effective for viral infections like the common cold.
Not Primary
✅
Skin infection with pus
This medicine can treat certain bacterial skin infections.
Likely Use

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionAmpicillin is absorbed from the gastrointestinal tract. Food may decrease the absorption of ampicillin; therefore, it is generally recommended to take it on an empty stomach, at least 1 hour before or 2 hours after meals. However, if stomach upset occurs, it may be taken with food.
DistributionAmpicillin distributes widely into body tissues and fluids, including pleural fluid, synovial fluid, and cerebrospinal fluid (especially when meninges are inflamed). It crosses the placenta and is excreted in breast milk.
Protein BindingApproximately 15-20% bound to plasma proteins.
MetabolismAmpicillin is partially metabolized in the liver to inactive metabolites.
Half-LifeThe elimination half-life is approximately 1 to 1.5 hours in patients with normal renal function. It is prolonged in patients with renal impairment.
ExcretionAmpicillin is primarily excreted unchanged in the urine by glomerular filtration and tubular secretion. A small amount is excreted in bile and feces.
BioavailabilityThe oral bioavailability of ampicillin is approximately 30-55% in fasting individuals. Food reduces bioavailability.
Onset of ActionThe onset of action is typically within 1-2 hours after oral administration, but clinical improvement may take 24-48 hours.
Peak Plasma TimePeak plasma concentrations are achieved within 1-2 hours after oral administration on an empty stomach.
Duration of ActionThe duration of action is generally 6-8 hours, but dosing is usually every 6 hours to maintain effective levels.

How It Works

This medicine works by interfering with the ability of bacteria to build their cell walls. Specifically, it binds to proteins called penicillin-binding proteins (PBPs) located inside the bacterial cell wall. This binding prevents the cross-linking of peptidoglycan chains, which are essential for the strength and rigidity of the bacterial cell wall. As a result, the bacterial cell wall becomes weak and the bacterium eventually bursts and dies. This medicine is bactericidal, meaning it kills bacteria directly. It is effective against a wide range of gram-positive and some gram-negative bacteria, but it is not effective against bacteria that produce beta-lactamase enzymes, which can break down the antibiotic.

Mechanism Steps

1
Binding to penicillin-binding proteins: This medicine binds to specific penicillin-binding proteins (PBPs) located on the inner membrane of the bacterial cell wall.
2
Inhibition of transpeptidation: By binding to PBPs, this medicine inhibits the transpeptidase enzyme responsible for cross-linking peptidoglycan chains in the bacterial cell wall.
3
Weakening of cell wall: Without proper cross-linking, the bacterial cell wall becomes structurally weak and cannot withstand osmotic pressure.
4
Cell lysis and death: The weakened cell wall leads to bacterial cell lysis and death, effectively clearing the infection.

💡 How to Take maxamp 250mg injection

Strength: Ampicillin 250mg immediate-release tablet

1Take this medicine orally with a full glass of water.
2Take it on an empty stomach, at least 1 hour before or 2 hours after meals, unless your doctor advises otherwise.
3If it upsets your stomach, you may take it with food.
4Swallow the tablet whole; do not crush or chew.
5Take at evenly spaced intervals as prescribed by your doctor.
6Complete the full course of treatment even if you feel better.

Dosage Information

Adult DosageThe usual adult dose of this medicine for most infections is 250 mg to 500 mg taken orally every 6 hours. For severe infections, higher doses may be prescribed. The exact dose and duration depend on the type and severity of the infection, your age, weight, kidney and liver function, and other medical conditions. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. Always follow your doctor's prescription exactly. Do not self-medicate or adjust the dose without consulting your doctor.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician for appropriate dosing in children.
Elderly DosageElderly patients may have reduced kidney function, which can affect the elimination of this medicine. Dose adjustment may be necessary based on renal function. Consult your doctor for appropriate dosing.
Renal ImpairmentIn patients with renal impairment, the dose of this medicine should be adjusted based on creatinine clearance. For patients with creatinine clearance less than 10 mL/min, the dosing interval should be extended to every 12 hours. Consult your doctor for specific dose adjustments.
Hepatic ImpairmentNo specific dose adjustment is generally required for patients with hepatic impairment, but caution is advised. Monitor liver function if used for prolonged periods.
Maximum Daily DoseThe maximum recommended daily dose is 4 grams (4000 mg) for adults, but this may vary based on the infection and patient factors. Always follow your doctor's prescription.

Dosage Timeline

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

🍽️ Food Timing Guide

With food
Take with meals if stomach upset occurs
Reduces stomach upset.
On empty stomach
Preferred for best absorption
Food can reduce absorption of ampicillin.
Acidic foods and juices
Avoid taking together
Acidic environment may degrade ampicillin.

⏰ What to Do If You Miss a Dose

📌 Less than half the dosing interval has passed
→ Take the missed dose as soon as you remember.
💡 Continue with the regular schedule.
📌 More than half the dosing interval has passed
→ Skip the missed dose.
💡 Do not double dose to catch up.

⚠️ Side Effects of maxamp 250mg injection

✅ Common Side Effects

Diarrhoea (Common (5-10%))
Usually resolves on its own. Stay hydrated. Consult doctor if persistent or severe.
Nausea (Common (5-10%))
Take with food to reduce nausea. Consult doctor if it continues.
Vomiting (Common (5-10%))
Take with food and fluids. Consult doctor if vomiting persists.
Skin rash (Common (5-10%))
Stop the medicine and consult your doctor immediately, as it may indicate an allergy.

🚨 Serious Side Effects

Anaphylaxis (Rare (<0.1%))
Seek immediate medical attention if you experience swelling of face, lips, throat, difficulty breathing, or severe rash.
Clostridium difficile-associated diarrhoea (Rare (<0.1%))
Seek medical attention if you develop severe, persistent diarrhoea, abdominal pain, or fever.
Severe skin reactions (e.g., Stevens-Johnson syndrome) (Rare (<0.1%))
Seek immediate medical attention if you develop a painful rash, blistering, or peeling skin.
Blood disorders (e.g., agranulocytosis, thrombocytopenia) (Rare (<0.1%))
Report unusual bleeding, bruising, or signs of infection to your doctor promptly.
Liver toxicity (Rare (<0.1%))
Seek medical attention if you notice yellowing of skin or eyes, dark urine, or severe abdominal pain.

⚠️ Rare Side Effects

Seizures
Seek immediate medical attention if seizures occur, especially in patients with kidney impairment.
Interstitial nephritis
Report decreased urine output, swelling, or blood in urine to your doctor.
Serum sickness-like reaction
Consult doctor if you experience fever, joint pain, and rash.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Major
Methotrexate Major
Allopurinol Major
Oral contraceptives Major
Probenecid Moderate
Tetracyclines Moderate
Chloramphenicol Moderate
Aminoglycosides Moderate
Antacids Minor
Food Minor

🚨 Major Interactions

  • Warfarin
  • Methotrexate
  • Allopurinol
  • Oral contraceptives

⚡ Moderate Interactions

  • Probenecid
  • Tetracyclines
  • Chloramphenicol
  • Aminoglycosides

🍷 Alcohol Interaction

Alcohol does not directly interact with ampicillin, but it can worsen stomach upset and may reduce your ability to fight the infection. It is advisable to avoid alcohol while taking this medicine.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity or allergy to ampicillin or any other penicillin antibiotic","History of severe allergic reaction to cephalosporins","Infectious mononucleosis (increased risk of rash)","Use in patients with viral infections (ineffective and may cause rash)"]

⚠️ Warnings & Precautions

["Before starting this medicine, inform your doctor about any allergies, especially to penicillins or cephalosporins.","Use with caution in patients with kidney disease; dose adjustment may be needed.","Use with caution in patients with liver disease.","Prolonged use may lead to overgrowth of non-susceptible organisms, including fungi.","May cause false-positive results in certain urine glucose tests.","Do not use for viral infections like cold or flu.","Complete the full course of treatment as prescribed.","If you develop a rash, stop the medicine and consult your doctor immediately."]

🤱 Lactation Safety

Ampicillin is excreted in breast milk in small amounts. It is generally considered safe during breastfeeding, but monitor the infant for diarrhoea, thrush, or rash. Consult your doctor before use.

💊 Overdose Management

Overdose of ampicillin can cause nausea, vomiting, diarrhoea, and abdominal pain. In severe cases, especially in patients with renal impairment, it can cause seizures. Treatment is symptomatic and supportive. There is no specific antidote. In case of overdose, seek immediate medical attention. Haemodialysis may be considered to remove ampicillin from the blood in severe cases.

⏰ Missed Dose

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

Additional Safety Advice

General Safety

Before taking this medicine, tell your doctor if you are allergic to penicillin or any other antibiotics. Inform your doctor about all other medicines you are taking, especially blood thinners, methotrexate, and oral contraceptives. Take this medicine with a full glass of water, with or without food, but taking it with food may reduce stomach upset. Do not crush or chew the tablet; swallow it whole. Complete the full course as prescribed, even if you feel better after a few days. Do not share this medicine with others. If you miss a dose, take it as soon as you remember, but if it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double the dose. Store this medicine at room temperature away from moisture and heat. Keep out of reach of children. If you are pregnant or breastfeeding, consult your doctor before taking this medicine. If you develop a rash, itching, or difficulty breathing, stop taking this medicine and seek immediate medical attention.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients are more likely to have reduced kidney function, which can affect the elimination of this medicine. Dose adjustment may be necessary. They are also at higher risk of side effects such as diarrhoea and allergic reactions. Close monitoring is advised.

🤰 Pregnancy Planning (TTC)

If you are planning to become pregnant, consult your doctor before taking this medicine. It is generally considered safe during pregnancy, but the benefits and risks should be discussed with your healthcare provider.

🏥 Post-Surgery Considerations

This medicine may be used before or after certain surgical procedures to prevent infection. Follow your surgeon's instructions regarding dosing and duration. Inform your surgeon if you are allergic to penicillins.

🦷 Dental Procedures

This medicine may be prescribed before dental procedures in patients at risk of infective endocarditis. Inform your dentist if you are allergic to penicillins or if you are taking this medicine.

💚 Lifestyle Tips for Better Results

🏃
Maintain a healthy diet rich in fruits and vegetables to support your immune system.
🥗
Stay well hydrated by drinking plenty of water.
😴
Get adequate rest to help your body fight the infection.
💧
Practice good hygiene, such as washing hands frequently, to prevent the spread of infection.
🧘
Avoid close contact with people who are sick to reduce the risk of new infections.
🌞
Take probiotics if you experience diarrhoea, but consult your doctor first.

🏋️ Exercise Considerations

While taking this medicine, you can continue with light to moderate exercise if you feel up to it. However, if you experience dizziness, fatigue, or muscle pain, avoid strenuous activities. Listen to your body and rest when needed.

🥗 Diet Recommendations

Include probiotic-rich foods like yogurt to help maintain healthy gut bacteria.
Eat a balanced diet with plenty of fruits and vegetables.
Stay hydrated by drinking water throughout the day.
Avoid spicy and fatty foods if you have stomach upset.
Limit caffeine and alcohol as they can worsen side effects.

💼 Impact on Daily Work & Life

This medicine may cause dizziness or fatigue in some people. If you experience these effects, avoid driving or operating heavy machinery until you know how the medicine affects you. Most people can continue their normal daily activities while taking this medicine, but it is important to rest and allow your body to recover from the infection.

🛑 When to Stop This Medicine

Do not stop taking this medicine without consulting your doctor, even if you feel better. Stopping early can lead to the infection returning and may contribute to antibiotic resistance. If you experience severe side effects, your doctor may advise you to stop and switch to a different antibiotic.

📅 Long-Term Use Effects

Long-term use of this medicine can lead to antibiotic resistance and may increase the risk of fungal or bacterial superinfections. Prolonged use may also cause blood disorders or liver problems. Regular monitoring of blood counts and liver function may be required if used for extended periods. It is important to use this medicine only when prescribed and for the shortest duration necessary.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Other antibiotics

Depending on the infection and sensitivity, other antibiotics like amoxicillin, cephalexin, or azithromycin may be used.

Evidence: Well-established
Symptomatic treatment

For viral infections, rest, fluids, and over-the-counter remedies may be used instead of antibiotics.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

This medicine does not interact with vaccines. However, if you are scheduled to receive a live vaccine, inform your doctor, as antibiotics may affect the vaccine's effectiveness. Generally, it is safe to receive vaccines while taking this medicine.

📦 Storage Guide

✅ DO

Store at room temperature (15-30°C)

❌ DON'T

Do not refrigerate unless specified

✅ DO

Keep in original container

❌ DON'T

Do not transfer to unmarked containers

✅ DO

Keep away from direct sunlight

❌ DON'T

Do not store in bathroom cabinet

✈️ Traveling with This Medicine

When traveling, carry this medicine in its original packaging with a copy of your prescription. Keep it in your carry-on luggage to avoid loss. Store at room temperature and protect from extreme heat or moisture. If crossing time zones, adjust dosing times gradually to maintain even intervals. Check customs regulations for carrying prescription medicines. Always carry enough supply for your trip and a little extra in case of delays.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 35-year-old woman with a urinary tract infection
She was prescribed this medicine for a urinary tract infection. She took it as directed every 6 hours. After 3 days, her symptoms improved significantly. She completed the 7-day course and the infection cleared. She experienced mild nausea, which was reduced by taking the medicine with food.
💡 Lesson: Taking the medicine with food can help reduce stomach upset, and completing the full course is essential to prevent recurrence.
👤 A 50-year-old man with a respiratory tract infection
He started this medicine for a chest infection. He initially took it on an empty stomach but experienced nausea. His doctor advised him to take it with a light meal, which helped. He completed the 10-day course and recovered fully. He was advised to avoid alcohol during treatment.
💡 Lesson: Adjusting the timing of the medicine with food can improve tolerability without compromising effectiveness.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: You may start feeling better within 24-48 hours, but it is important to complete the full course as prescribed.

Q: Can I take this medicine with food?

A: It is best taken on an empty stomach, but if it causes stomach upset, you can take it with food.

Q: What should I do if I miss a dose?

A: Take it as soon as you remember, but if it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not double dose.

Q: Is this medicine safe during pregnancy?

A: It is generally considered safe during pregnancy, but consult your doctor before use.

Q: Can I drink alcohol while taking this medicine?

A: It is advisable to avoid alcohol as it may worsen stomach upset and reduce your ability to fight the infection.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I take this medicine long-term?
  • Will it affect my kidney function?
  • Can I drive after taking this medicine?
  • Does it interact with my blood pressure medicine?
  • What if I miss a dose?
  • Can I drink alcohol while taking this?
  • Is it safe during pregnancy?
  • Can I take it with other antibiotics?

🔄 Substitutes for maxamp 250mg injection

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: Ampicillin can cure viral infections like the common cold.
    Fact: Ampicillin is effective only against bacterial infections. It does not work for viral infections.
  • Myth: You can stop taking ampicillin once you feel better.
    Fact: You must complete the full course as prescribed to prevent the infection from returning and to avoid antibiotic resistance.
  • Myth: Ampicillin is safe for everyone.
    Fact: Ampicillin can cause allergic reactions and is not suitable for people with penicillin allergy.

🔄 Alternative Options

Generic Alternatives

  • Ampicillin 250mg tablet (various manufacturers)

Brand Alternatives

  • Ampilin 250mg tablet

📊 Comparison with Similar Medicines

[{"medicine":"Ampicillin","class":"Aminopenicillin","spectrum":"Broad-spectrum","route":"Oral","common_use":"Respiratory, urinary, skin infections"},{"medicine":"Amoxicillin","class":"Aminopenicillin","spectrum":"Broad-spectrum","route":"Oral","common_use":"Similar to ampicillin, better oral absorption"},{"medicine":"Penicillin V","class":"Natural penicillin","spectrum":"Narrow-spectrum","route":"Oral","common_use":"Streptococcal infections"}]

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