Gerfex 125mg Dry Syrup (Cefalexin): 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
- Swelling of the face, lips, tongue, or throat with difficulty breathing or swallowing.
- Widespread red or blistering skin rash, peeling skin, or sores in the mouth or eyes.
- Severe, persistent, or bloody diarrhoea during or after treatment.
- Unusual bruising, bleeding, or a persistent high fever that does not improve.
- Yellowing of the eyes or skin, dark urine, or severe abdominal pain.
- Reduced urine output, swelling of the legs, or new confusion, especially in older adults.
- Seizures or sudden loss of consciousness.
If experiencing severe symptoms, call emergency services immediately.
What is oralexine 125mg syrup used for?
This medicine is a cefalexin dry syrup antibiotic used to treat certain bacterial infections of the throat, ears, skin, and urinary tract in children and adults. It works by breaking down the bacterial cell wall, and it must be taken exactly as prescribed for the full course.
- Generic Name: Cefalexin (125mg/5ml)
- Manufacturer: Kentreck Laboratories Pvt Ltd
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 oralexine 125mg syrup के बारे में (Hindi Summary)
उपयोग: यह दवा सेफालेक्सिन नामक एंटीबायोटिक का ड्राई सिरप रूप है, जो कुछ खास बैक्टीरिया से होने वाले संक्रमणों के इलाज के लिए दी जाती है। इसका इस्तेमाल मुख्य रूप से गले और टॉन्सिल के संक्रमण, कान के मध्य भाग के संक्रमण, त्वचा और मुलायम ऊतकों के संक्रमण तथा कुछ मूत्र मार्ग संक्रमणों में किया जाता है। यह बैक्टीरिया की कोशिका भित्ति को तोड़कर उन्हें मार देती है, जिससे संक्रमण धीरे-धीरे ठीक होता है। यह दवा वायरस से होने वाले सर्दी-जुकाम या फ्लू पर असर नहीं करती। इसे डॉक्टर की सलाह के अनुसार पूरा कोर्स करना बहुत जरूरी है, भले ही लक्षण जल्दी ठीक होने लगें।
साइड इफेक्ट्स: इस दवा को ज्यादातर लोग अच्छी तरह सहन कर लेते हैं, लेकिन कुछ लोगों में पेट खराब होना, ढीले दस्त, जी मिचलाना, उल्टी, पेट में हल्का दर्द या त्वचा पर हल्का दाना निकल सकता है। ये आम तौर पर हल्के होते हैं और इलाज जारी रखने पर ठीक हो जाते हैं। कभी-कभी योनि में खुजली या सफेद स्राव, मुंह में छाले या चक्कर भी हो सकते हैं। गंभीर प्रतिक्रियाएं दुर्लभ हैं, लेकिन अगर चेहरे, होंठ, जीभ या गले में सूजन आए, सांस लेने में तकलीफ हो, त्वचा पर बड़े छाले पड़ें, खूनी दस्त हों या बहुत ज्यादा कमजोरी और बुखार रहे, तो तुरंत डॉक्टर से मिलें।
सुरक्षा सलाह: इस दवा का इस्तेमाल सिर्फ डॉक्टर के बताए अनुसार करें और दूसरों को न दें। हर बार देने से पहले बोतल को अच्छी तरह हिलाएं और साथ दिए गए चम्मच, कप या सिरिंज से ही सही मात्रा नापें। अगर बच्चा या मरीज जल्दी ठीक महसूस करने लगे तो भी पूरा कोर्स पूरा करें, वरना संक्रमण फिर लौट सकता है। पहले से पेनिसिलिन या सेफालोस्पोरिन से एलर्जी हो तो डॉक्टर को जरूर बताएं। दाना, सूजन, सांस लेने में दिक्कत या गंभीर दस्त होने पर दवा बंद करके तुरंत डॉक्टर से संपर्क करें। तैयार सिरप को फ्रिज में रखें और लेबल पर लिखे दिनों के भीतर इस्तेमाल कर लें।
💊 oralexine 125mg syrup Uses & Benefits
[{"condition":"Streptococcal pharyngitis and tonsillitis","description":"This medicine is used to treat throat and tonsil infections caused by susceptible group A streptococci, helping to relieve sore throat and fever and to prevent complications such as rheumatic fever.","evidence":"Well-established"},{"condition":"Otitis media","description":"This medicine is prescribed for middle ear infections in children when a susceptible bacterial cause is suspected or confirmed, reducing ear pain, fever, and the risk of persistent infection.","evidence":"Well-established"},{"condition":"Skin and soft tissue infections","description":"This medicine is used for mild to moderate skin infections such as impetigo, cellulitis, and infected wounds caused by susceptible staphylococci or streptococci.","evidence":"Well-established"},{"condition":"Urinary tract infections","description":"This medicine may be used for uncomplicated urinary tract infections caused by susceptible bacteria, especially when other options are unsuitable.","evidence":"Established"},{"condition":"Respiratory tract infections","description":"This medicine can be used for some upper and lower respiratory tract infections caused by susceptible bacteria, although it is not a first choice for all such infections.","evidence":"Established"}]
Off-label uses: [{"condition":"Dental infection prophylaxis","description":"Sometimes used to prevent infection after certain dental procedures in patients who cannot take penicillins, but this is not a standard approved use for this formulation.","evidence":"Limited"},{"condition":"Acne vulgaris","description":"Occasionally prescribed for inflammatory acne caused by susceptible bacteria, but this is not a recommended routine use and should be guided by a specialist.","evidence":"Limited"}]
Primary treatment for: Bacterial infections caused by susceptible organisms, especially respiratory tract, skin, and urinary tract infections
Also treats: Streptococcal pharyngitis, Otitis media, Impetigo and other skin infections, Uncomplicated urinary tract infections
📋 Drug Information
| Generic Name(s) | Cefalexin (125mg/5ml) |
| Brand Name | oralexine 125mg syrup |
| Manufacturer | Kentreck Laboratories Pvt Ltd |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | ANTI INFECTIVES |
| Action Class | Cephalosporins: 1st generation |
| Route of Administration | Oral |
| Storage | Store the dry powder at room temperature, between 15°C and 30°C, away from direct sunlight and moisture. After reconstitution with water, store the suspension in the refrigerator at 2°C to 8°C and do not freeze it. Keep the bottle tightly closed and use the reconstituted suspension within the number of days stated on the label or by the pharmacist, usually 7 to 14 days. Discard any unused suspension after that period. |
| Shelf Life | The shelf life of the dry powder is usually 24 months from the date of manufacture when stored as directed. Once reconstituted, the suspension should be used within the period specified by the manufacturer, commonly 7 to 14 days when kept in the refrigerator. Always check the expiry date on the pack before use. |
| WHO Guideline | Not established from the available information. |
| ICMR Guideline | Not established from the available information. |
👨⚕️ 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 bactericidal cephalosporin antibiotic that kills susceptible bacteria by interfering with the construction of their cell wall. It binds to specific penicillin-binding proteins located inside the bacterial cell wall and blocks the final cross-linking step of peptidoglycan synthesis. Without proper cross-linking, the bacterial cell wall becomes weak and cannot withstand normal internal pressure, so the bacterium ruptures and dies. Because human cells do not have a peptidoglycan cell wall, this medicine selectively targets bacteria with little direct effect on human cells.
Mechanism Steps
💡 How to Take oralexine 125mg syrup
Strength: Dry syrup for oral suspension, containing cefalexin 125 mg in every 5 ml after reconstitution.
Dosage Information
| Adult Dosage | For adults, the usual oral dose of cefalexin is 250 mg every 6 hours or 500 mg every 12 hours for many common infections, but the exact dose depends on the type and severity of the infection and on kidney function. Severe infections may need higher doses, up to a maximum of 4 g per day in divided doses. This dry syrup formulation is mainly intended for children, but adults who have difficulty swallowing capsules may sometimes be prescribed it. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. |
| Pediatric Dosage | Pediatric dosing of cefalexin is based on body weight and the type of infection. A commonly used range is 25 to 50 mg per kg per day in divided doses for mild to moderate infections, with higher doses used for severe infections. This 125 mg per 5 ml dry syrup is designed to make measurement easy for children. Because dosing depends on weight, kidney function, and the specific infection, the exact amount must be determined by a pediatrician or qualified clinician. Do not calculate or change the dose yourself. |
| Elderly Dosage | Older adults usually receive the same dose as younger adults, but they are more likely to have reduced kidney function. Because cefalexin is removed by the kidneys, the dose may need to be lowered or spaced further apart in an older person with impaired kidney function. Kidney function should be checked before and during treatment when appropriate, and the dose must be individualized by a qualified clinician. |
| Renal Impairment | In people with normal kidney function, the usual adult doses can be used. When creatinine clearance is reduced, the dose or the dosing interval must be adjusted. As a general guide, people with moderate kidney impairment may need longer intervals between doses, and those with severe impairment may need both a lower dose and longer intervals. Because the exact adjustment depends on the measured kidney function and the infection being treated, the dose must be individualized by a qualified clinician. |
| Hepatic Impairment | Cefalexin is not significantly broken down by the liver, so mild to moderate liver disease usually does not require a dose change. In severe liver disease with accompanying kidney problems, the dose may need adjustment based on kidney function. Any change should be made by a qualified clinician. |
| Maximum Daily Dose | The maximum recommended adult oral dose of cefalexin is 4 g per day in divided doses. For children, the maximum daily dose is also generally limited to 4 g per day, but the usual pediatric dose is much lower and is based on body weight. Doses above these limits should not be used except in special circumstances under close medical supervision. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of oralexine 125mg syrup
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| Warfarin | Major | |
| Gentamicin | Major | |
| Furosemide | Moderate | |
| Probenecid | Moderate | |
| Methotrexate | Moderate | |
| Oral contraceptives | Moderate | |
| Antacids | Minor | |
| Iron supplements | Minor |
🚨 Major Interactions
- Warfarin and other vitamin K antagonists
- Aminoglycoside antibiotics such as gentamicin
- Loop diuretics such as furosemide
⚡ Moderate Interactions
- Probenecid
- Oral contraceptives
- Methotrexate
🍷 Alcohol Interaction
There is no well-established direct chemical interaction between this medicine and alcohol. However, alcohol can worsen stomach upset, dehydration, and drowsiness, and it may make it harder to recover from an infection. It is therefore sensible to avoid alcohol or keep it to a minimum while taking this medicine, especially if you have a fever or are feeling unwell.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Known severe allergy or anaphylaxis to cefalexin or any other cephalosporin antibiotic","Known severe immediate allergy to penicillin antibiotics, because of the small risk of cross-reactivity","Use for infections known or strongly suspected to be caused by organisms resistant to cefalexin","Use for viral infections such as the common cold or influenza, because it will not help and may cause harm"]
⚠️ Warnings & Precautions
["Tell your clinician about any previous allergic reaction to antibiotics before starting this medicine.","Stop this medicine and seek emergency care if swelling of the face, lips, tongue, or throat or difficulty breathing occurs.","Severe or bloody diarrhoea during or after treatment may be a sign of a serious bowel infection and should be reported immediately.","Dose adjustment is needed in people with significant kidney impairment.","Prolonged or repeated use can lead to overgrowth of resistant bacteria or yeast.","This medicine may rarely cause seizures, especially in people with kidney failure or those taking very high doses.","Do not use leftover antibiotic for a later illness, and do not share it with others."]
🤱 Lactation Safety
Cefalexin passes into breast milk in small amounts. It is generally considered compatible with breastfeeding, but it may occasionally cause loose stools, thrush, or a rash in the nursing infant. A breastfeeding mother should use this medicine only when prescribed, and she should watch the baby for these effects and inform the clinician if they occur.
💊 Overdose Management
Taking too much of this medicine can cause nausea, vomiting, stomach pain, and diarrhoea. In people with kidney problems, very high doses may increase the risk of seizures or worsen kidney function. There is no specific antidote. Treatment is supportive, with attention to hydration and, in serious cases, removal of the medicine by haemodialysis. If an overdose is suspected, contact a poison control centre or go to the nearest emergency department and take the medicine container with you.
⏰ Missed Dose
If a dose is missed, give or take it as soon as you remember, provided that the next scheduled dose is not due very soon. If it is almost time for the next dose, skip the missed dose and continue with the regular schedule. Never double the dose to make up for a missed one. If you are unsure what to do, contact your clinician or pharmacist for advice.
Additional Safety Advice
Always use this medicine exactly as prescribed by your clinician, and never share it with another person or save leftover medicine for later use. Shake the reconstituted bottle well before every dose and measure each dose with the spoon, cup, or syringe supplied with the product rather than a household spoon. Complete the full course even if the child or adult feels better after a few days, because stopping early can allow the infection to return and can encourage bacterial resistance. Tell your clinician about any previous allergic reaction to penicillin or cephalosporin antibiotics before starting this medicine. If a rash, swelling, breathing difficulty, or severe diarrhoea develops, stop the medicine and get medical help without delay. Store the dry powder as directed on the label, and keep the reconstituted suspension in the refrigerator, using it within the number of days specified by the manufacturer.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Older adults are more likely to have reduced kidney function, which can cause cefalexin to build up in the body. This increases the risk of side effects, including confusion and, rarely, seizures. Kidney function should be checked before and during treatment when appropriate, and the dose may need to be reduced or spaced further apart. Older adults should also be watched for dehydration and loose stools, and they should report any new confusion or reduced urine output promptly.
🤰 Pregnancy Planning (TTC)
Women who are trying to conceive or who may be pregnant should tell their clinician before taking this medicine. Cefalexin is generally considered acceptable in pregnancy when there is a clear bacterial infection and the benefit outweighs the risk. It is not a medicine that needs to be stopped specifically for pregnancy planning, but any antibiotic use should be discussed with a clinician to make sure it is appropriate.
🏥 Post-Surgery Considerations
This medicine may sometimes be used after surgery to treat or prevent susceptible bacterial infections, depending on the type of operation and the surgeon's assessment. It is not a routine pain reliever, and it should not replace proper wound care. If fever, increasing wound pain, redness, or discharge occurs after surgery, contact the surgical team promptly because this may indicate a deeper infection that needs reassessment.
🦷 Dental Procedures
This medicine is not a routine painkiller for toothache, but it may be prescribed for a dental infection caused by susceptible bacteria. Some people with certain heart conditions may need antibiotic prophylaxis before dental procedures, but the choice of antibiotic depends on the person's allergy history and the local guidelines. Inform the dentist about any allergy to penicillin or cephalosporin before any antibiotic is prescribed.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
There is no specific restriction on exercise while taking this medicine, but it is wise to rest while fever, pain, or fatigue is present. Once symptoms improve, gentle activity can be resumed. If dizziness, weakness, or loose stools occur, avoid strenuous exercise and drink enough fluids. People with joint or skin infections should avoid activities that put stress on the affected area until it has healed.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
Most people can continue their usual daily activities while taking this medicine, but fever, pain, or loose stools may reduce energy levels for a few days. Driving and operating heavy machinery are usually safe unless dizziness, drowsiness, or weakness occurs. Children should be kept at home while they have fever or diarrhoea to avoid spreading infection to others. If the work involves close contact with vulnerable people, discuss with the clinician when it is safe to return.
🛑 When to Stop This Medicine
This medicine should be stopped only after completing the full prescribed course, unless the clinician advises otherwise. It should be stopped immediately and medical help sought if a severe allergic reaction, widespread blistering rash, severe or bloody diarrhoea, or any other serious side effect occurs. Do not stop early just because symptoms have improved, because this can allow the infection to return and can promote antibiotic resistance.
📅 Long-Term Use Effects
This medicine is usually prescribed for a short, fixed course, so long-term effects are not a major concern when it is used appropriately. Prolonged or repeated use can lead to overgrowth of resistant bacteria or yeast, and it may rarely cause changes in blood counts or liver enzymes. If repeated courses are needed, the clinician should reassess the underlying condition and consider whether another treatment or further testing is required. Long-term use without a clear indication should be avoided.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
If the infection is not responding or the organism is resistant, the clinician may switch to a different antibiotic based on laboratory results.
Evidence: Well-establishedFor viral illnesses or mild infections, supportive care alone may be enough and antibiotics may not be needed.
Evidence: Well-establishedHand washing, covering the mouth when coughing, and avoiding close contact with sick people can reduce the need for antibiotics.
Evidence: Well-established💉 Vaccination Considerations
💉 If You're Getting Vaccinated
There is no known interaction between this medicine and routine vaccines. However, if a person is acutely unwell with fever, vaccination may be postponed until they have recovered, as advised by the clinician. Antibiotics do not reduce the effectiveness of most vaccines, but live bacterial vaccines such as oral typhoid vaccine should not be taken at the same time as antibiotics. Always inform the vaccination provider about any medicines being taken.
📦 Storage Guide
✅ DO
Store the dry powder at room temperature between 15°C and 30°C.
❌ DON'T
Do not leave the powder in a hot car or in direct sunlight.
✅ DO
Keep the reconstituted suspension in the refrigerator at 2°C to 8°C.
❌ DON'T
Do not freeze the reconstituted suspension.
✅ DO
Keep the bottle tightly closed and use the original labelled container.
❌ DON'T
Do not transfer the medicine to an unmarked bottle or container.
✅ DO
Write the date of reconstitution and the discard date on the bottle.
❌ DON'T
Do not use the suspension after the recommended number of days.
✅ DO
Keep all medicines out of the reach of children.
❌ DON'T
Do not store medicines in the bathroom cabinet where moisture can spoil them.
✈️ Traveling with This Medicine
When travelling with this medicine, carry the dry powder or the reconstituted suspension in its original labelled container along with a copy of the prescription. If the suspension has already been mixed, keep it cool during travel, ideally in a small cooler bag, and use it within the recommended number of days. For air travel, keep the medicine in your hand luggage so that it is not exposed to extreme temperatures in checked baggage. If you are crossing time zones, ask your clinician how to adjust the dosing times so that the intervals between doses remain as even as possible. Check the customs rules of your destination country for prescription medicines before you travel.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: Fever and pain often start improving within 24 to 48 hours, but the infection may take several days to clear completely. The full prescribed course should always be completed.
A: Yes, this medicine may be taken with or without food. Taking it with a small meal or snack can reduce stomach upset.
A: If you remember soon after the missed time, take the dose as soon as possible. If it is almost time for the next dose, skip the missed dose and continue the regular schedule. Never double the dose.
A: Yes, this dry syrup form is designed for children, but the dose must be calculated by a pediatrician based on the child's weight and the type of infection.
A: Cefalexin is generally considered acceptable in pregnancy when prescribed for a clear bacterial infection, but it should only be used under a clinician's supervision.
A: The most common side effects are loose stools, nausea, stomach discomfort, and mild rash. Serious allergic reactions and severe diarrhoea are rare but need urgent medical attention.
🤔 Common Patient Concerns
🔄 Substitutes for oralexine 125mg syrup
View AllAlternative brands with exact same active ingredient:
-
cephlin 125mg syrupAbia Pharmaceuticals Pvt. Ltd. ₹28.13 14.8% CHEAPER
-
Safexin Dry SyrupSaga Laboratories ₹29.91 9.4% CHEAPER
-
gerfex 125mg dry syrupZydus Cadila ₹30.76 6.8% CHEAPER
-
adispore oral suspensionAdison Pharmaceuticals ₹33.00 SAME PRICE
-
cefamax syrupMax India Ltd ₹34.69 5.1% COSTLIER
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: Antibiotics like this medicine can cure the common cold.
Fact: This medicine only works against susceptible bacteria and has no effect on viruses, so it will not cure a cold or flu. - Myth: You can stop this medicine as soon as you feel better.
Fact: Stopping early can allow the infection to return and can encourage bacteria to become resistant, so the full prescribed course should be completed. - Myth: Leftover antibiotics can be saved and used for the next illness.
Fact: Leftover antibiotics should never be saved or shared because the infection may be different and the medicine may be expired or contaminated. - Myth: This medicine is safe for everyone with a penicillin allergy.
Fact: Some people with penicillin allergy can also react to cephalosporins, so a clinician must assess the risk before this medicine is used.
🔄 Alternative Options
Generic Alternatives
- Cefalexin oral suspension 125 mg per 5 ml
Brand Alternatives
- gerfex 125mg dry syrup