Nexicef 500mg Injection: Complete Medicine Guide
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026
When to Call Your Doctor IMMEDIATELY
- Difficulty breathing or swelling of the face, lips, or throat.
- Severe, persistent diarrhoea that may contain blood or mucus.
- Rash with blistering or peeling skin, or sores in the mouth or eyes.
- Seizures or sudden loss of consciousness.
- Yellowing of the skin or eyes, or dark urine.
- Unusual bleeding or bruising.
- Decreased urine output or swelling in the legs.
- Severe abdominal pain, especially in the upper right quadrant.
If experiencing severe symptoms, call emergency services immediately.
What is nexicef 500mg injection used for?
This medicine is a third-generation cephalosporin antibiotic given by injection to treat serious bacterial infections such as pneumonia, meningitis, and gonorrhoea. It works by breaking down the bacterial cell wall, leading to bacterial death. It is administered by a healthcare professional and must not be self-administered.
- Generic Name: Information coming soon
- Manufacturer: Multiple manufacturers
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 nexicef 500mg injection के बारे में (Hindi Summary)
उपयोग: यह दवा सेफ्ट्रिएक्सोन नामक तीसरी पीढ़ी के सेफलोस्पोरिन एंटीबायोटिक का इंजेक्शन है। इसका उपयोग गंभीर बैक्टीरियल संक्रमणों जैसे निमोनिया, मेनिनजाइटिस, गोनोरिया, मूत्र मार्ग संक्रमण, और पेट के अंदर के संक्रमण के इलाज के लिए किया जाता है। यह दवा बैक्टीरिया की कोशिका भित्ति को तोड़कर उन्हें मार देती है। यह केवल डॉक्टर या प्रशिक्षित स्वास्थ्यकर्मी द्वारा ही दी जाती है, इसे घर पर स्वयं नहीं लगाया जाना चाहिए। यह वायरल संक्रमण जैसे सर्दी-जुकाम के लिए प्रभावी नहीं है।
साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में इंजेक्शन वाली जगह पर दर्द, सूजन या लालिमा, दस्त, जी मिचलाना, उल्टी, हल्के दाने और सिरदर्द शामिल हैं। गंभीर दुष्प्रभावों में एलर्जी की तीव्र प्रतिक्रिया, सांस लेने में कठिनाई, चेहरे या गले में सूजन, गंभीर दस्त, त्वचा पर छाले, और खून की कमी शामिल हो सकते हैं। यदि आपको कोई भी असामान्य लक्षण दिखे तो तुरंत डॉक्टर से संपर्क करें।
सुरक्षा सलाह: यह दवा केवल अस्पताल या क्लिनिक में प्रशिक्षित स्वास्थ्यकर्मी द्वारा ही दी जानी चाहिए। इससे पहले कि आपको यह इंजेक्शन दिया जाए, अपने डॉक्टर को अपनी सभी एलर्जी, विशेषकर पेनिसिलिन या सेफलोस्पोरिन से एलर्जी के बारे में बताएं। यदि आप गर्भवती हैं, स्तनपान करा रही हैं, या गर्भधारण की योजना बना रही हैं, तो डॉक्टर को सूचित करें। इस दवा के साथ कैल्शियम युक्त इंट्रावेनस तरल पदार्थ न मिलाएं, खासकर नवजात शिशुओं में। इलाज के दौरान शराब का सेवन न करें। डॉक्टर द्वारा बताई गई पूरी अवधि तक दवा लें, भले ही आप बेहतर महसूस करें।
💊 nexicef 500mg injection Uses & Benefits
[{"condition":"Community-acquired pneumonia","description":"Used as empiric therapy for moderate to severe community-acquired pneumonia, often combined with a macrolide or a respiratory fluoroquinolone.","evidence":"Well-established"},{"condition":"Bacterial meningitis","description":"A first-line agent for empiric treatment of bacterial meningitis in adults and children above a certain age, often combined with vancomycin.","evidence":"Well-established"},{"condition":"Complicated urinary tract infections","description":"Effective against many Gram-negative uropathogens, including Escherichia coli, Klebsiella species, and Proteus species.","evidence":"Well-established"},{"condition":"Gonorrhoea","description":"Recommended as part of dual therapy or monotherapy for uncomplicated gonococcal infections, depending on local resistance patterns.","evidence":"Well-established"},{"condition":"Intra-abdominal infections","description":"Used in combination with metronidazole for community-acquired intra-abdominal infections such as perforated appendicitis and diverticulitis.","evidence":"Well-established"},{"condition":"Surgical prophylaxis","description":"Given as a single preoperative dose to reduce the risk of surgical site infections in certain clean-contaminated procedures.","evidence":"Well-established"},{"condition":"Skin and soft tissue infections","description":"Used for moderate to severe cellulitis, abscesses, and wound infections caused by susceptible organisms.","evidence":"Well-established"},{"condition":"Septicaemia","description":"Empiric therapy for suspected bloodstream infections while awaiting culture and sensitivity results.","evidence":"Well-established"}]
Off-label uses: [{"condition":"Lyme disease with neurological involvement","description":"Sometimes used as an alternative to intravenous penicillin G for neuroborreliosis.","evidence":"Limited"},{"condition":"Typhoid fever","description":"Used in some regions where resistance to first-line agents is common, though not a first-line choice in all guidelines.","evidence":"Limited"},{"condition":"Melioidosis","description":"Used in the intensive phase of treatment in some protocols, though not universally recommended.","evidence":"Limited"}]
Primary treatment for: Bacterial infections
Also treats: Community-acquired pneumonia, Bacterial meningitis, Complicated urinary tract infections, Gonorrhoea, Intra-abdominal infections, Skin and soft tissue infections, Septicaemia
📋 Drug Information
| Generic Name(s) | Information coming soon |
| Brand Name | nexicef 500mg injection |
| Manufacturer | Multiple manufacturers |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | ANTI INFECTIVES |
| Action Class | Cephalosporins: 3 generation |
| Route of Administration | Parenteral (intramuscular or intravenous) |
| Storage | Store the unreconstituted powder at room temperature between 20°C and 25°C (68°F to 77°F). Protect from light and moisture. Once reconstituted, the solution should be used within the time specified by the manufacturer, typically within 6 hours at room temperature or 24 hours if refrigerated. Do not freeze. |
| Shelf Life | The shelf life of the unreconstituted powder is typically 24 to 36 months from the date of manufacture. Check the expiry date on the packaging before use. |
| WHO Guideline | The World Health Organization includes ceftriaxone in its Model List of Essential Medicines. It is recommended for the treatment of several serious bacterial infections, including pneumonia, meningitis, and gonorrhoea, based on local resistance patterns and clinical guidelines. |
| ICMR Guideline | The Indian Council of Medical Research recommends ceftriaxone as a first-line or alternative agent for several bacterial infections, including community-acquired pneumonia, meningitis, and enteric fever, depending on local susceptibility data. It is included in the National List of Essential Medicines of India. |
👨⚕️ Doctor's Practical Tips
Evidence-based practical advice from experienced clinicians
🔍 Is This Medicine Right for Your Symptom?
Educational reference. Always consult a doctor for diagnosis.
🔬 How This Medicine Works (Pharmacology)
Pharmacokinetics
How It Works
This medicine is a third-generation cephalosporin antibiotic that inhibits bacterial cell wall synthesis. It binds to specific penicillin-binding proteins located inside the bacterial cell wall, which are enzymes involved in the cross-linking of peptidoglycan strands. By inhibiting these transpeptidase enzymes, this medicine prevents the formation of a stable cell wall, leading to bacterial cell lysis and death. It is bactericidal and is generally stable against many beta-lactamases produced by Gram-negative bacteria, although it can be hydrolysed by extended-spectrum beta-lactamases and carbapenemases.
Mechanism Steps
💡 How to Take nexicef 500mg injection
Strength: This medicine is supplied as a sterile powder for injection containing 500 mg of ceftriaxone per vial. It is reconstituted with a suitable diluent before administration.
Dosage Information
| Adult Dosage | The usual adult dose of this medicine is 1 to 2 grams administered once daily by intramuscular or intravenous injection, depending on the type and severity of the infection. For uncomplicated gonorrhoea, a single 500 mg intramuscular dose is often used. For meningitis, doses up to 2 grams every 12 hours may be given. The dose must be individualized by a qualified clinician based on the indication, age, weight, renal and hepatic function, and the severity of the infection. Do not self-administer. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician. In general, pediatric doses are weight-based and must be determined by a qualified clinician. This medicine is contraindicated in neonates with hyperbilirubinaemia and in neonates receiving intravenous calcium-containing solutions. |
| Elderly Dosage | Elderly patients may have reduced renal function, which can lead to increased plasma concentrations of this medicine. Dose adjustment may be necessary based on renal function. Elderly patients should be monitored closely for side effects, especially those related to kidney function and allergic reactions. |
| Renal Impairment | In patients with renal impairment, dose adjustment is not usually required for mild to moderate impairment. For severe renal impairment (creatinine clearance less than 10 mL/min), the daily dose should not exceed 2 grams. In patients undergoing dialysis, no additional dose is needed after dialysis. Close monitoring of renal function is advised. |
| Hepatic Impairment | In patients with hepatic impairment alone, dose adjustment is generally not required. However, in patients with both hepatic and renal impairment, close monitoring is recommended, and dose reduction may be necessary. Consult a clinician for individualized dosing. |
| Maximum Daily Dose | The maximum recommended daily dose of this medicine is 4 grams, but doses up to 2 grams every 12 hours have been used in severe infections like meningitis. The dose must be individualized by a qualified clinician. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of nexicef 500mg injection
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| Calcium-containing IV solutions | Major | |
| Warfarin | Major | |
| Aminoglycosides | Major | |
| Chloramphenicol | Major | |
| Loop diuretics | Moderate | |
| Probenecid | Moderate | |
| Oral contraceptives | Moderate | |
| Antacids | Minor | |
| Iron supplements | Minor |
🚨 Major Interactions
- Calcium-containing intravenous solutions
- Warfarin
- Aminoglycosides
- Chloramphenicol
⚡ Moderate Interactions
- Loop diuretics
- Probenecid
- Oral contraceptives
🍷 Alcohol Interaction
Avoid consuming alcohol while receiving this medicine. Alcohol can increase the risk of liver toxicity and may worsen side effects such as nausea, dizziness, and gastrointestinal upset. It is best to abstain from alcohol during the entire course of treatment and for a few days after the last dose.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Known severe hypersensitivity to ceftriaxone or any other cephalosporin.","Known severe hypersensitivity to penicillins (cross-reactivity may occur).","Neonates (up to 28 days of age) who are receiving or expected to receive intravenous calcium-containing solutions.","Hyperbilirubinaemic neonates.","Concomitant use with calcium-containing intravenous solutions in neonates.","Not to be used for prophylaxis or treatment of infections caused by methicillin-resistant Staphylococcus aureus (MRSA) unless susceptibility is confirmed."]
⚠️ Warnings & Precautions
["Serious and occasionally fatal hypersensitivity reactions, including anaphylaxis, have been reported. Before starting therapy, enquire about previous hypersensitivity to cephalosporins, penicillins, or other allergens.","Clostridioides difficile-associated diarrhoea has been reported. If diarrhoea occurs, evaluate for this condition and initiate appropriate treatment.","This medicine may cause gallbladder sludge and pseudolithiasis, especially in children. This is usually reversible after discontinuation.","Use with caution in patients with renal impairment; dose adjustment may be necessary.","Use with caution in patients with a history of gastrointestinal disease, especially colitis.","Prolonged use may result in overgrowth of non-susceptible organisms, including fungi.","This medicine should not be mixed with other drugs in the same syringe or infusion bag unless compatibility has been established.","Patients should be advised to complete the full course of therapy even if they feel better."]
🤱 Lactation Safety
This medicine is excreted in human breast milk in low concentrations. It is generally considered compatible with breastfeeding, but caution is advised. Consult your doctor before breastfeeding while receiving this medicine, as it may affect the infant's gut flora and cause diarrhoea or thrush.
💊 Overdose Management
Overdose of this medicine may cause symptoms such as nausea, vomiting, diarrhoea, and seizures. There is no specific antidote. Treatment is supportive and symptomatic. In cases of severe overdose, especially in patients with renal impairment, haemodialysis may be considered to remove the drug from the bloodstream. Contact a poison control centre or emergency department immediately if an overdose is suspected.
⏰ Missed Dose
This medicine is usually administered by a healthcare professional, so missed doses are uncommon. If you miss a scheduled dose, contact your doctor or nurse as soon as possible. Do not attempt to self-administer a double dose to make up for a missed one. Your healthcare provider will determine the best course of action based on your treatment schedule.
Additional Safety Advice
This medicine must be administered only by a trained healthcare professional in a setting equipped to manage severe allergic reactions. Inform your doctor about all your allergies, especially to penicillins or cephalosporins, before receiving this medicine. Do not receive this medicine together with calcium-containing intravenous solutions, particularly if you are a neonate, because dangerous precipitates can form in the lungs and kidneys. Tell your doctor if you are pregnant, planning pregnancy, or breastfeeding. Avoid alcohol during treatment as it may worsen side effects and stress the liver. Complete the full course prescribed by your doctor even if you feel better after the first dose, to prevent the infection from returning and to reduce the risk of antibiotic resistance. Do not self-administer this injection at home.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients are more likely to have reduced renal function, which can lead to increased levels of this medicine and a higher risk of side effects. Dose adjustment may be necessary. Monitor renal function closely and watch for signs of confusion, seizures, or allergic reactions. Elderly patients may also be more susceptible to C. difficile-associated diarrhoea.
🤰 Pregnancy Planning (TTC)
If you are planning to become pregnant, discuss with your doctor before receiving this medicine. It is classified as Pregnancy Category B and is generally considered safe, but should only be used if clearly needed. If you become pregnant while on this medicine, inform your doctor immediately.
🏥 Post-Surgery Considerations
This medicine is often used perioperatively to prevent surgical site infections. If you have recently had surgery and are receiving this medicine, monitor for signs of infection at the surgical site, such as redness, swelling, or discharge. Complete the prescribed course to prevent complications.
🦷 Dental Procedures
If you are scheduled for a dental procedure while receiving this medicine, inform your dentist. This medicine may be used prophylactically for certain dental procedures in patients at risk of infective endocarditis, but this is determined by your doctor. No specific interaction with dental anesthetics is known.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
While receiving this medicine, you may feel tired or weak. Avoid strenuous exercise until you have fully recovered. Light activities such as walking are generally safe, but listen to your body and rest when needed. If you experience dizziness or shortness of breath, stop exercising and consult your doctor.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine is usually given in a hospital or clinic setting, so you may need to take time off work for treatment. You may experience fatigue, dizziness, or diarrhoea, which can affect your ability to drive or operate machinery. Avoid driving if you feel unwell. Once you start feeling better, you can gradually resume your normal activities, but take it easy until you have completed the course.
🛑 When to Stop This Medicine
Do not stop this medicine without consulting your doctor. Stopping early can allow the infection to return and may lead to antibiotic resistance. If you experience severe side effects, your doctor may decide to stop the medicine and switch to an alternative. Always follow your doctor's instructions regarding the duration of treatment.
📅 Long-Term Use Effects
Long-term use of this medicine may lead to the overgrowth of non-susceptible organisms, including fungi, and may increase the risk of antibiotic resistance. Prolonged therapy may also cause blood dyscrasias, liver enzyme elevations, and gallbladder sludge. Regular monitoring of renal and hepatic function is recommended during prolonged therapy. If you experience any unusual symptoms, consult your doctor.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
For mild infections, oral antibiotics such as cefixime or amoxicillin-clavulanate may be used instead of injections.
Evidence: Well-establishedDepending on the causative organism and susceptibility, other antibiotics like cefotaxime, ceftazidime, or meropenem may be used.
Evidence: Well-establishedRest, hydration, and fever control are important adjuncts to antibiotic therapy.
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 immune response to certain vaccines. In general, antibiotics do not contraindicate vaccination, but it is best to discuss with your healthcare provider.
📦 Storage Guide
✅ DO
Store the unreconstituted powder at room temperature (20-25°C).
❌ DON'T
Do not freeze the powder or the reconstituted solution.
✅ DO
Protect the powder from light and moisture.
❌ DON'T
Do not store in the bathroom or near a sink.
✅ DO
Use the reconstituted solution within the recommended time (usually 6 hours at room temperature or 24 hours refrigerated).
❌ DON'T
Do not use the solution if it is cloudy or contains particles.
✅ DO
Keep out of reach of children.
❌ DON'T
Do not transfer to another container without proper labelling.
✈️ Traveling with This Medicine
When travelling with this medicine, carry it in its original packaging along with a copy of your prescription. This medicine is usually administered in a healthcare setting, so you may not need to carry it yourself. If you are travelling to a region where medical facilities are limited, ensure you have enough supply and a letter from your doctor explaining the need for the injection. Store the powder at room temperature and protect it from light and moisture. Check customs regulations for carrying prescription injectables across borders.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: You may start feeling better within 24 to 48 hours after the first dose, but it may take several days for full recovery. It is important to complete the full course prescribed by your doctor.
A: This medicine is classified as Pregnancy Category B. It should be used during pregnancy only if clearly needed and prescribed by your doctor. Discuss the risks and benefits with your healthcare provider.
A: Common side effects include injection site pain, diarrhoea, nausea, rash, and headache. Most side effects are mild and resolve on their own. Contact your doctor if they persist or worsen.
A: It is best to avoid alcohol during treatment as it can increase the risk of liver toxicity and worsen side effects such as nausea and dizziness.
A: This medicine can be used in children, but the dose is based on weight and must be determined by a pediatrician. It is contraindicated in neonates with hyperbilirubinaemia or those receiving intravenous calcium.
🤔 Common Patient Concerns
🛑 Myths vs. Facts
- Myth: This medicine can cure viral infections like the common cold.
Fact: This medicine is an antibiotic and is only effective against bacterial infections. It does not treat viral infections. - Myth: This medicine can be self-administered at home.
Fact: This medicine must be administered by a trained healthcare professional in a clinical setting. - Myth: This medicine is safe to use with calcium-containing IV solutions in newborns.
Fact: This medicine must never be mixed with calcium-containing IV solutions in neonates due to the risk of fatal precipitates. - Myth: You can stop taking this medicine as soon as you feel better.
Fact: You must complete the full course prescribed by your doctor to prevent the infection from returning and to reduce antibiotic resistance.
🔄 Alternative Options
Generic Alternatives
- Ceftriaxone 500 mg injection
Brand Alternatives
- Nexicef 500mg injection