phexin 250mg redisyp banana - Cefalexin (250mg/5ml) medicine

Gerfex Dry Syrup: Comprehensive Medicine Guide

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🏭 Glaxo SmithKline Pharmaceuticals Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 25, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established
Reviewed by
SaathiMed Expert Panel | Sep 25, 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

  • Difficulty breathing or swelling of face, lips, or throat
  • Severe or bloody diarrhea
  • Skin rash with peeling or blistering
  • Yellowing of skin or eyes
  • Decreased urine output or swelling in legs
  • Unusual bleeding or bruising
  • Persistent high fever

If experiencing severe symptoms, call emergency services immediately.

What is phexin 250mg redisyp banana used for?

This medicine is a cephalosporin antibiotic used to treat bacterial infections in children and adults. It works by killing bacteria and is available as a dry syrup that is mixed with water before use.

  • Generic Name: Cefalexin (250mg/5ml)
  • Manufacturer: Glaxo SmithKline Pharmaceuticals Ltd
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 phexin 250mg redisyp banana के बारे में (Hindi Summary)

उपयोग: यह दवा सेफालेक्सिन नामक एंटीबायोटिक है, जिसका उपयोग बैक्टीरियल संक्रमण जैसे गले में संक्रमण, कान में संक्रमण, त्वचा संक्रमण और मूत्र मार्ग संक्रमण के इलाज के लिए किया जाता है। यह बैक्टीरिया को मारकर संक्रमण को ठीक करती है। यह वायरल संक्रमण जैसे सर्दी-जुकाम के लिए प्रभावी नहीं है। इसका उपयोग डॉक्टर के परामर्श से ही करें।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में पेट खराब होना, जी मिचलाना, उल्टी, दस्त और हल्के दाने शामिल हैं। ये आमतौर पर हल्के और अस्थायी होते हैं। गंभीर दुष्प्रभाव दुर्लभ हैं, लेकिन यदि आपको सांस लेने में कठिनाई, चेहरे या गले में सूजन, या गंभीर दस्त हो, तो तुरंत डॉक्टर से संपर्क करें।

सुरक्षा सलाह: इस दवा को डॉक्टर के बताए अनुसार ही लें। हर बार उपयोग से पहले बोतल को अच्छी तरह हिलाएं। सही मात्रा मापने के लिए मापने वाला कप या सिरिंज का उपयोग करें। अगर आपको किडनी या लीवर की समस्या है या एंटीबायोटिक से एलर्जी है, तो डॉक्टर को बताएं। दवा का कोर्स पूरा करें, भले ही आप बेहतर महसूस करें। घोल बनाने के बाद इसे फ्रिज में रखें और 14 दिनों के बाद बची हुई दवा फेंक दें।

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

💊 phexin 250mg redisyp banana Uses & Benefits

[{"condition":"Respiratory tract infections","description":"Used to treat bacterial infections of the throat, tonsils, and sinuses caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Otitis media","description":"Effective against middle ear infections in children caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Skin and soft tissue infections","description":"Treats bacterial skin infections such as impetigo, cellulitis, and abscesses.","evidence":"Well-established"},{"condition":"Urinary tract infections","description":"Used for uncomplicated urinary tract infections caused by susceptible bacteria.","evidence":"Well-established"},{"condition":"Bone and joint infections","description":"May be used for certain bone and joint infections under medical supervision.","evidence":"Limited"}]

Off-label uses: [{"condition":"Acne vulgaris","description":"Sometimes prescribed off-label for moderate to severe acne, but not a first-line treatment.","evidence":"Limited"},{"condition":"Prophylaxis in dental procedures","description":"May be used off-label to prevent infection in certain dental procedures for high-risk patients.","evidence":"Limited"}]

Primary treatment for: Bacterial infections

Also treats: Respiratory tract infections, Otitis media, Skin infections, Urinary tract infections

📋 Drug Information

Generic Name(s)Cefalexin (250mg/5ml)
Brand Namephexin 250mg redisyp banana
ManufacturerGlaxo SmithKline Pharmaceuticals Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassANTI INFECTIVES
Action ClassCephalosporins: 1st generation
Route of AdministrationOral
StorageStore the dry powder at room temperature (15-30°C) in a dry place, away from direct sunlight. After reconstitution, store the suspension in the refrigerator (2-8°C) and discard any unused portion after 14 days.
Shelf Life24 months for the dry powder. After reconstitution, use within 14 days if stored in the refrigerator.
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
Always complete the full course of this antibiotic, even if symptoms improve early.
2
Shake the bottle well before each dose to ensure proper mixing.
3
Use a calibrated measuring device to avoid under- or over-dosing.
4
Take with food if stomach upset occurs.
5
Inform your doctor if you have kidney or liver problems before starting this medicine.
6
Do not share this medicine with others, even if they have similar symptoms.

🔍 Is This Medicine Right for Your Symptom?

Educational reference. Always consult a doctor for diagnosis.

✅
Sore throat with fever
This medicine is commonly prescribed for bacterial throat infections.
Likely Use
✅
Ear pain
This medicine is used for middle ear infections.
Likely Use
✅
Skin redness and swelling
This medicine is used for bacterial skin infections.
Likely Use
❌
Common cold
This medicine is not effective against viral infections.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionCefalexin is rapidly and almost completely absorbed from the gastrointestinal tract after oral administration. The presence of food may delay absorption slightly but does not significantly reduce the total amount absorbed.
DistributionCefalexin distributes widely into body tissues and fluids, including the kidneys, liver, spleen, lungs, and pleural fluid. It crosses the placenta and is excreted in breast milk in small amounts.
Protein BindingApproximately 10-15% bound to plasma proteins.
MetabolismCefalexin is not significantly metabolized in the body and is excreted largely unchanged.
Half-LifeApproximately 0.5 to 1.2 hours in patients with normal renal function.
ExcretionCefalexin is excreted primarily unchanged in the urine by glomerular filtration and tubular secretion. A small amount is excreted in bile.
BioavailabilityWell absorbed from the gastrointestinal tract, with bioavailability approaching 90% or more.
Onset of ActionPeak plasma concentrations are reached within 1 hour after oral administration.
Peak Plasma Time1 hour
Duration of ActionTherapeutic effect lasts for approximately 6 to 12 hours, depending on the dose and susceptibility of the bacteria.

How It Works

This medicine works by inhibiting bacterial cell wall synthesis. It binds to penicillin-binding proteins (PBPs) on the inner membrane of susceptible bacteria, blocking the cross-linking of peptidoglycan chains. This weakens the cell wall, leading to bacterial cell lysis and death. It is bactericidal against a range of Gram-positive and some Gram-negative bacteria.

Mechanism Steps

1
Binding to penicillin-binding proteins: This medicine binds to specific penicillin-binding proteins located on the bacterial cell membrane.
2
Inhibition of cell wall synthesis: This binding inhibits the transpeptidation reaction required for cross-linking of peptidoglycan chains in the bacterial cell wall.
3
Bacterial cell lysis: The weakened cell wall leads to osmotic instability and rupture of the bacterial cell, resulting in bacterial death.

💡 How to Take phexin 250mg redisyp banana

Strength: Dry syrup for oral suspension, 250 mg/5 ml after reconstitution.

1Shake the bottle well before each use.
2Measure the prescribed dose using the measuring cup or syringe provided.
3Take with or without food, but taking with food may reduce stomach upset.
4Swallow the suspension directly; do not mix with hot liquids.
5Complete the full course as prescribed by your doctor.

Dosage Information

Adult DosageThe usual adult dose of this medicine is 250 mg every 6 hours or 500 mg every 12 hours, depending on the type and severity of the infection. For more severe infections, higher doses may be prescribed. The dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function.
Pediatric DosageThe usual pediatric dose is 25-50 mg/kg/day in divided doses. For severe infections, up to 100 mg/kg/day may be used. The dose must be individualized by a qualified clinician based on the child's weight, age, and renal function.
Elderly DosageElderly patients may have reduced renal function and may require dose adjustment. The dose must be individualized by a qualified clinician based on renal function.
Renal ImpairmentIn patients with renal impairment, dose adjustment is required. For creatinine clearance 30-60 mL/min, the maximum daily dose is 1 g. For creatinine clearance 15-29 mL/min, the maximum daily dose is 500 mg. For creatinine clearance less than 15 mL/min, the maximum daily dose is 250 mg. The dose must be individualized by a qualified clinician.
Hepatic ImpairmentNo specific dose adjustment is required for hepatic impairment, but caution is advised. The dose must be individualized by a qualified clinician.
Maximum Daily DoseThe maximum recommended daily dose is 4 g for adults with normal renal function. For children, the maximum is 100 mg/kg/day.

Dosage Timeline

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

🍽️ Food Timing Guide

With food
May take with or without food
Food may reduce stomach upset.
Grapefruit
No known interaction
No significant interaction reported.

⏰ 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 phexin 250mg redisyp banana

✅ Common Side Effects

Diarrhea (Common (1-10%))
Usually resolves without treatment. Maintain hydration. Consult doctor if persistent or severe.
Nausea (Common (1-10%))
Take with food to reduce nausea. Consult doctor if it persists.
Vomiting (Common (1-10%))
Take with food and stay hydrated. Consult doctor if vomiting continues.
Abdominal pain (Common (1-10%))
Take with food. Consult doctor if pain is severe or persistent.
Skin rash (Uncommon (0.1-1%))
Stop the medicine and consult your doctor immediately if rash appears.

🚨 Serious Side Effects

Anaphylaxis (Rare (<0.1%))
Seek emergency medical help immediately if you experience difficulty breathing, swelling of face or throat, or severe dizziness.
Clostridioides difficile-associated diarrhea (Rare (<0.1%))
Contact your doctor if you develop severe or bloody diarrhea, even weeks after finishing the antibiotic.
Stevens-Johnson syndrome (Very rare (<0.01%))
Seek immediate medical attention if you notice skin peeling, mouth sores, or fever with rash.
Interstitial nephritis (Rare (<0.1%))
Report decreased urine output, swelling, or fatigue to your doctor promptly.
Blood dyscrasias (Rare (<0.1%))
Inform your doctor if you experience unusual bleeding, bruising, or persistent fever.

⚠️ Rare Side Effects

Seizures
Seek immediate medical attention if seizures occur.
Hepatitis
Report yellowing of skin or eyes, dark urine, or severe abdominal pain to your doctor.
Aplastic anemia
Consult your doctor if you experience persistent fatigue, infections, or bleeding.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Major
Aminoglycosides Major
Loop diuretics Major
Probenecid Moderate
Oral contraceptives Moderate
Metformin Minor

🚨 Major Interactions

  • Warfarin
  • Aminoglycosides
  • Loop diuretics

⚡ Moderate Interactions

  • Probenecid
  • Oral contraceptives

🍷 Alcohol Interaction

Alcohol may worsen stomach upset and dizziness. 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 allergy to cefalexin or other cephalosporins","Previous anaphylactic reaction to penicillins","Use in patients with porphyria"]

⚠️ Warnings & Precautions

["Use with caution in patients with renal impairment; dose adjustment may be needed.","Use with caution in patients with a history of gastrointestinal disease, especially colitis.","Prolonged use may result in overgrowth of non-susceptible organisms.","May cause false-positive results in urine glucose tests.","Not effective against viral infections.","Should be used only when prescribed by a qualified clinician."]

🤱 Lactation Safety

Cefalexin is excreted in breast milk in small amounts. It is generally considered safe during breastfeeding, but consult your doctor to monitor for potential effects on the infant.

💊 Overdose Management

Overdose may cause nausea, vomiting, abdominal pain, and diarrhea. In severe cases, seizures may occur. Treatment is symptomatic and supportive. Hemodialysis may be considered in severe cases. Contact a poison control center or emergency department immediately if overdose is suspected.

⏰ 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 double the dose to catch up.

Additional Safety Advice

General Safety

Take this medicine exactly as prescribed by your doctor. Shake the bottle well before each dose to ensure the medicine is evenly mixed. Use a proper measuring device to measure the dose accurately. Do not skip doses or stop the course early, even if you feel better. Inform your doctor if you have kidney problems, liver problems, or a history of allergy to antibiotics. Avoid taking this medicine with alcohol as it may worsen stomach upset. Store the reconstituted suspension in the refrigerator and discard any unused portion after 14 days. Keep this medicine out of reach of children.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients may have reduced renal function and may require dose adjustment. Monitor renal function closely and watch for signs of superinfection.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy or are pregnant, consult your doctor before taking this medicine. It is generally considered safe during pregnancy, but should be used only when clearly needed.

🏥 Post-Surgery Considerations

This medicine may be prescribed to prevent or treat surgical site infections. Follow your surgeon's instructions regarding dosing and duration.

🦷 Dental Procedures

This medicine may be used prophylactically before dental procedures in patients at high risk of infective endocarditis. Consult your dentist and doctor for specific advice.

💚 Lifestyle Tips for Better Results

🏃
Stay well hydrated to help flush out the infection.
🥗
Get plenty of rest to support your immune system.
😴
Eat a balanced diet rich in fruits and vegetables.
💧
Practice good hand hygiene to prevent the spread of infection.
🧘
Avoid sharing personal items like towels and utensils.
🌞
Complete the full course of antibiotics as prescribed.

🏋️ Exercise Considerations

There are no specific exercise restrictions while taking this medicine. However, if you feel dizzy or weak, avoid strenuous activities until you feel better.

🥗 Diet Recommendations

Include probiotic-rich foods like yogurt to maintain gut health.
Stay well hydrated with water and clear fluids.
Avoid spicy and oily foods if you have stomach upset.
Eat small, frequent meals if you experience nausea.

💼 Impact on Daily Work & Life

This medicine may cause dizziness or fatigue in some people. If affected, avoid driving or operating heavy machinery until you know how it affects you. Otherwise, it usually does not significantly impact daily activities.

🛑 When to Stop This Medicine

Do not stop taking this medicine without consulting your doctor, even if you feel better. Stopping early may allow the infection to return and contribute to antibiotic resistance. If you experience severe side effects, contact your doctor immediately for advice.

📅 Long-Term Use Effects

Long-term use of this medicine may lead to overgrowth of non-susceptible organisms, including fungi, and may increase the risk of antibiotic resistance. Prolonged use should be avoided unless prescribed by a doctor. Regular monitoring of renal and hepatic function may be required during extended therapy.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Other antibiotics

Depending on the infection and susceptibility, other antibiotics like amoxicillin or cefadroxil may be used.

Evidence: Well-established
Symptomatic treatment

For viral infections, symptomatic treatment with rest, fluids, and pain relievers is appropriate.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

There are no known interactions between this medicine and vaccines. However, if you are scheduled for a live vaccine, inform your doctor as antibiotics may affect the immune response.

📦 Storage Guide

✅ DO

Store dry powder at room temperature (15-30°C)

❌ DON'T

Do not refrigerate the dry powder

✅ DO

After reconstitution, store in refrigerator (2-8°C)

❌ DON'T

Do not leave reconstituted suspension at room temperature for long periods

✅ 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 along with a copy of your prescription. If traveling with the reconstituted suspension, keep it refrigerated or in a cool place and use within 14 days. For air travel, carry it in your hand luggage. Check customs regulations for carrying prescription medicines. If crossing time zones, adjust dosing times gradually under medical advice.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 5-year-old child with ear infection
The child was prescribed this medicine for acute otitis media. The parents administered the reconstituted suspension with food twice daily. Within 3 days, the child's ear pain and fever subsided. The parents completed the full 10-day course as advised, and the infection resolved completely.
💡 Lesson: Completing the full course prevents recurrence and antibiotic resistance.
👤 A 35-year-old adult with skin infection
An adult with cellulitis of the leg was prescribed this medicine. They experienced mild nausea initially, which was managed by taking the medicine with meals. The infection improved significantly within a week, and the full course was completed without further issues.
💡 Lesson: Taking the medicine with food can reduce gastrointestinal side effects.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: You may start feeling better within 1-2 days, but it is important to complete the full course as prescribed.

Q: Can I take this medicine with food?

A: Yes, you can take it with or without food. Taking it with food may reduce stomach upset.

Q: Is this medicine safe for children?

A: Yes, it is commonly prescribed for children. The dose is based on the child's weight and must be determined by a doctor.

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

A: 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 double the dose.

🤔 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?

🔄 Substitutes for phexin 250mg redisyp banana

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: Antibiotics can cure viral infections like the common cold.
    Fact: This medicine is effective only against bacterial infections. It does not treat viral infections.
  • Myth: You can stop taking antibiotics once you feel better.
    Fact: You must complete the full course as prescribed to prevent the infection from returning and to reduce antibiotic resistance.
  • Myth: Antibiotics can be shared with others.
    Fact: Antibiotics are prescribed for a specific infection and should never be shared.

🔄 Alternative Options

Generic Alternatives

  • Cefalexin oral suspension

Brand Alternatives

  • Gerfex Dry Syrup

📊 Comparison with Similar Medicines

[{"medicine":"Cefalexin","class":"First-generation cephalosporin","spectrum":"Gram-positive and some Gram-negative","route":"Oral"},{"medicine":"Cefadroxil","class":"First-generation cephalosporin","spectrum":"Similar to cefalexin","route":"Oral"},{"medicine":"Amoxicillin","class":"Aminopenicillin","spectrum":"Broad-spectrum","route":"Oral"}]

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