Ifin 500 Tablet (Terbinafine 500mg): Complete Medicine Guide
When to Call Your Doctor IMMEDIATELY
- Yellowing of the skin or eyes, dark urine, or pale stools
- Severe nausea, vomiting, or pain in the upper right abdomen
- Painful rash with blisters, peeling skin, or sores in the mouth or eyes
- Swelling of the face, lips, tongue, or throat, or difficulty breathing
- Unusual bruising, bleeding, fever, or persistent sore throat
- Severe headache with confusion or vision changes
- Chest pain or irregular heartbeat
- Decreased urine output or swelling in the legs
If experiencing severe symptoms, call emergency services immediately.
What is terbinid 500mg tablet used for?
This medicine is an oral antifungal tablet containing terbinafine 500 mg. It is used to treat fungal infections of the skin, hair, and nails. It works by blocking an enzyme that fungi need to build their cell membranes. The usual adult dose is 250 mg once daily, but the 500 mg strength is used only as directed by your doctor. It can rarely cause liver problems, so your doctor may check your liver function before and during treatment.
- Generic Name: Terbinafine (500mg)
- Manufacturer: Nidus Pharma Pvt Ltd
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 terbinid 500mg tablet के बारे में (Hindi Summary)
उपयोग: यह दवा टर्बिनाफिन 500 मिलीग्राम की एक ओरल टैबलेट है, जिसका उपयोग फंगल संक्रमण के इलाज के लिए किया जाता है। यह त्वचा, बालों और नाखूनों के फंगल संक्रमण जैसे दाद, खाज-खुजली, और नाखून फंगस में प्रभावी है। यह दवा फंगस को मारने का काम करती है और संक्रमण को फैलने से रोकती है। यह दवा डॉक्टर के पर्चे के बिना नहीं लेनी चाहिए। अगर आपको लीवर की बीमारी है, तो यह दवा लेने से पहले डॉक्टर को जरूर बताएं। गर्भवती महिलाओं और स्तनपान कराने वाली महिलाओं को यह दवा डॉक्टर की सलाह के बिना नहीं लेनी चाहिए।
साइड इफेक्ट्स: इस दवा के आम दुष्प्रभावों में सिरदर्द, जी मिचलाना, पेट दर्द, दस्त, और स्वाद में बदलाव शामिल हैं। ये आमतौर पर हल्के होते हैं और कुछ दिनों में ठीक हो जाते हैं। कभी-कभी यह दवा लीवर को नुकसान पहुंचा सकती है, जिसके लक्षण हैं आंखों या त्वचा का पीला पड़ना, गहरे रंग का पेशाब, और लगातार जी मिचलाना। अगर आपको त्वचा पर गंभीर दाने, छाले, या सूजन दिखे, तो तुरंत डॉक्टर से मिलें। इस दवा को लेते समय शराब न पिएं क्योंकि इससे लीवर पर और जोर पड़ सकता है।
सुरक्षा सलाह: इस दवा को लेने से पहले अपने डॉक्टर को अपनी सभी बीमारियों और दवाओं के बारे में बताएं। अगर आपको लीवर या किडनी की समस्या है, तो डॉक्टर को जरूर बताएं। इस दवा को लेते समय शराब का सेवन न करें। गर्भवती या स्तनपान कराने वाली महिलाएं डॉक्टर की सलाह के बिना यह दवा न लें। दवा का पूरा कोर्स करें, भले ही लक्षण ठीक हो जाएं, क्योंकि अधूरा कोर्स करने से संक्रमण फिर से हो सकता है। डॉक्टर के बताए अनुसार नियमित जांच कराएं।
💊 terbinid 500mg tablet Uses & Benefits
- [{"condition":"Onychomycosis (fungal nail infection)","description":"This medicine is used to treat fungal infections of the fingernails and toenails caused by dermatophytes.
- It helps clear the infection and allows healthy nail to grow out.","evidence":"Well-established"},{"condition":"Tinea capitis (scalp ringworm)","description":"This medicine is effective for fungal scalp infections, especially when the infection is extensive or does not respond to topical treatment.","evidence":"Well-established"},{"condition":"Tinea corporis (body ringworm)","description":"This medicine is used for widespread or difficult-to-treat ringworm of the body when topical antifungals are not enough.","evidence":"Well-established"},{"condition":"Tinea cruris (jock itch)","description":"This medicine may be prescribed for extensive or recurrent jock itch that has not responded to creams.","evidence":"Moderate"},{"condition":"Tinea pedis (athlete's foot)","description":"This medicine is used for severe or widespread athlete's foot, especially when the skin is thickened or cracked.","evidence":"Moderate"}]
Off-label uses: [{"condition":"Cutaneous candidiasis","description":"This medicine is sometimes used for skin yeast infections when other treatments are not suitable, but it is not the first choice.","evidence":"Limited"},{"condition":"Sporotrichosis","description":"This medicine has been used in some cases of this rare fungal infection, but it is not a standard first-line treatment.","evidence":"Limited"}]
Primary treatment for: Fungal infections of the skin, hair, and nails (dermatophytosis)
Also treats: Onychomycosis, Tinea capitis, Tinea corporis, Tinea cruris, Tinea pedis
📋 Drug Information
| Generic Name(s) | Terbinafine (500mg) |
| Brand Name | terbinid 500mg tablet |
| Manufacturer | Nidus Pharma Pvt Ltd |
| Packaging / Form | Varies by brand (Allopathy) |
| Therapeutic Class | ANTI INFECTIVES |
| Action Class | Fungal ergosterol synthesis inhibitor |
| Route of Administration | Oral |
| Storage | Store at room temperature between 15°C and 30°C (59°F to 86°F). Keep the tablets in their original container, tightly closed, and protect them from light and moisture. Do not store in the bathroom. |
| Shelf Life | The shelf life is typically 24 months from the date of manufacture, but check the expiry date printed on the pack. Do not use after the expiry date. |
| 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 works by selectively inhibiting the fungal enzyme squalene epoxidase. This enzyme is needed to convert squalene into lanosterol, a key building block of the fungal cell membrane. When the enzyme is blocked, squalene builds up inside the fungal cell and lanosterol becomes scarce. The high squalene level is toxic to the fungus, and the lack of lanosterol weakens the cell membrane. Together, these effects stop the fungus from growing and eventually kill it. Because this medicine targets a fungal enzyme that is not present in human cells, it is relatively selective for fungi.
Mechanism Steps
💡 How to Take terbinid 500mg tablet
Strength: This medicine is available as an immediate-release tablet containing 500 mg of terbinafine.
Dosage Information
| Adult Dosage | The usual adult dose of this medicine for most fungal skin infections is 250 mg once daily, but the dose and duration depend on the type and severity of the infection. For nail infections, treatment may last 6 weeks for fingernails and 12 weeks for toenails. For scalp ringworm, treatment may last 4 to 6 weeks. The 500 mg strength is not the standard daily dose for most adults and is usually reserved for specific situations or as directed by your doctor. Dose must be individualized by a qualified clinician based on indication, age, weight, renal and hepatic function. |
| Pediatric Dosage | Pediatric dosing is not established from available information. Consult a pediatrician. This medicine is sometimes used in children for certain fungal infections, but the dose is based on weight and must be determined by a pediatrician. |
| Elderly Dosage | Elderly patients may be more sensitive to the side effects of this medicine, especially liver effects. Your doctor may start with a lower dose or monitor you more closely. Dose must be individualized by a qualified clinician based on kidney and liver function. |
| Renal Impairment | In patients with mild to moderate kidney impairment, no dose adjustment is usually needed. In severe kidney impairment (creatinine clearance less than 50 mL/min), the dose may need to be reduced or the medicine avoided. Your doctor will decide based on your kidney function tests. |
| Hepatic Impairment | This medicine is not recommended for people with active or chronic liver disease. If you have mild liver impairment, your doctor may use it with caution and monitor your liver function closely. Dose must be individualized by a qualified clinician. |
| Maximum Daily Dose | The maximum recommended daily dose is 500 mg, but the usual adult dose is 250 mg once daily. Do not exceed the dose prescribed by your doctor. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of terbinid 500mg tablet
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🔬 Drug Interactions
| Drug | Severity | Effect |
|---|---|---|
| Rifampicin | Major | |
| Cimetidine | Major | |
| Amitriptyline | Moderate | |
| Nortriptyline | Moderate | |
| Metoprolol | Moderate | |
| Warfarin | Moderate | |
| Fluoxetine | Moderate | |
| Paroxetine | Moderate | |
| Oral contraceptives | Minor | |
| Antacids | Minor |
🚨 Major Interactions
- Rifampicin
- Cimetidine
- Terbinafine (other formulations)
⚡ Moderate Interactions
- Tricyclic antidepressants (e.g., amitriptyline, nortriptyline)
- Selective serotonin reuptake inhibitors (SSRIs)
- Beta-blockers (e.g., metoprolol)
- Warfarin
🍷 Alcohol Interaction
Avoid alcohol while taking this medicine. Both alcohol and this medicine can put stress on the liver, and drinking alcohol may increase the chance of liver injury. If you drink alcohol regularly, discuss this with your doctor before starting treatment.
🔎 Check Your Other Medicines
Educational tool. Always confirm with your doctor or pharmacist.
🛡️ Safety & Warnings
🚫 Contraindications
["Active liver disease or chronic liver disease","Known allergy or hypersensitivity to terbinafine or any ingredient in this medicine","Breastfeeding (due to potential risk to the infant)","Severe kidney impairment (dose adjustment or avoidance may be needed)"]
⚠️ Warnings & Precautions
["This medicine can rarely cause serious liver injury. Your doctor should check your liver function before and during treatment.","Stop this medicine and seek immediate medical help if you develop a severe skin rash, blisters, or peeling skin.","Avoid alcohol while taking this medicine to reduce the risk of liver problems.","Tell your doctor if you have a blood disorder, lupus, or any autoimmune condition.","This medicine may interact with several other medicines, so give your doctor a complete list of everything you take.","Do not use this medicine for mild fungal infections that can be treated with creams unless your doctor advises it.","This medicine is not recommended during pregnancy or breastfeeding unless clearly needed.","Complete the full course as prescribed, even if you feel better, to prevent the infection from returning."]
🤱 Lactation Safety
This medicine passes into breast milk in small amounts. Because of the potential for serious side effects in a breastfed baby, breastfeeding is not recommended while taking this medicine. If you need this medicine, discuss with your doctor whether to stop breastfeeding or use an alternative treatment.
💊 Overdose Management
If you take too much of this medicine, seek medical attention immediately. Overdose may cause nausea, vomiting, headache, dizziness, and abdominal pain. There is no specific antidote. Treatment is supportive and may include activated charcoal if the overdose is recent. Contact your local poison control center or go to the nearest emergency department.
⏰ 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 two doses at the same time to make up for a missed dose.
Additional Safety Advice
Before starting this medicine, tell your doctor if you have any liver or kidney problems, a blood disorder, or an autoimmune condition such as lupus. Your doctor may arrange blood tests to check your liver function before and during treatment. Avoid alcohol while taking this medicine because both alcohol and this medicine can stress the liver. Do not share this medicine with anyone else, even if they have similar symptoms. If you are pregnant, planning pregnancy, or breastfeeding, discuss the risks and benefits with your doctor before taking this medicine. This medicine can interact with several other medicines, including some antidepressants, blood thinners, and certain heart medicines, so always give your doctor a complete list of everything you take. Do not stop the medicine early without consulting your doctor, because the fungal infection may return. Keep all follow-up appointments so your doctor can monitor your response and check for side effects.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients may be more sensitive to the side effects of this medicine, especially liver effects and interactions with other medicines. Your doctor may check your liver and kidney function more closely and adjust the dose if needed. Report any new symptoms promptly.
🤰 Pregnancy Planning (TTC)
If you are planning to become pregnant, discuss this medicine with your doctor before starting treatment. This medicine is not recommended during pregnancy unless the potential benefit clearly outweighs the risk. Your doctor may recommend delaying treatment until after pregnancy or using a safer alternative.
🏥 Post-Surgery Considerations
If you have surgery planned, tell your surgeon and anesthesiologist that you are taking this medicine. It can rarely affect liver function, which may influence how your body handles anesthesia and other medicines. Your doctor may recommend stopping the medicine before surgery or monitoring your liver function closely.
🦷 Dental Procedures
Inform your dentist that you are taking this medicine before any dental procedure. There is no direct interaction with dental anesthetics, but this medicine can rarely affect liver function, which may influence how your body processes some medicines. Your dentist may consult your doctor if you need additional medications.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
This medicine may cause dizziness or blurred vision in some people. If you feel dizzy or unsteady, avoid strenuous exercise, driving, or operating heavy machinery until you feel normal. Otherwise, regular exercise is encouraged as it supports overall health and circulation, which can help healing.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
Most people can continue their normal work and daily activities while taking this medicine. However, if you experience dizziness, blurred vision, or severe headache, avoid driving or operating machinery until you feel better. The medicine may cause taste changes that can affect your appetite, but this usually resolves after treatment. If you have a physically demanding job, take precautions to avoid injury if you feel unsteady.
🛑 When to Stop This Medicine
Stop taking this medicine and seek immediate medical help if you develop signs of liver injury (yellowing of the skin or eyes, dark urine, severe nausea, upper right abdominal pain), a severe skin rash with blisters or peeling, swelling of the face or throat, or difficulty breathing. Do not stop the medicine for mild side effects without consulting your doctor. Always complete the full course unless your doctor tells you to stop.
📅 Long-Term Use Effects
Long-term use of this medicine is generally not recommended unless your doctor advises it for a specific infection. Prolonged use may increase the risk of liver injury and blood disorders. Your doctor should monitor your liver function and blood counts during long-term treatment. If you need treatment for more than a few weeks, your doctor will assess the benefits and risks regularly. Do not continue this medicine beyond the prescribed duration without medical advice.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
Creams, lotions, or sprays containing clotrimazole, miconazole, or terbinafine can treat mild skin fungal infections without oral medicine.
Evidence: Well-establishedSelenium sulfide or ketoconazole shampoos can help treat scalp ringworm and reduce spread, often used alongside oral medicine.
Evidence: Well-establishedKeeping skin clean and dry, wearing breathable clothing, and avoiding sharing personal items can help prevent fungal infections.
Evidence: Well-establishedKeeping nails trimmed and clean can reduce discomfort and prevent the infection from worsening, but it does not cure nail fungus on its own.
Evidence: Limited💉 Vaccination Considerations
💉 If You're Getting Vaccinated
There are no known interactions between this medicine and vaccines. However, if you are due for a vaccine, inform your doctor that you are taking this medicine. Live vaccines should generally be avoided if you have a weakened immune system, but this medicine does not usually cause significant immune suppression.
📦 Storage Guide
✅ DO
Store at room temperature between 15°C and 30°C.
❌ DON'T
Do not refrigerate unless specified on the label.
✅ DO
Keep the tablets in their original container, tightly closed.
❌ DON'T
Do not transfer them to unmarked containers.
✅ DO
Keep away from direct sunlight and moisture.
❌ DON'T
Do not store in the bathroom cabinet.
✅ DO
Keep out of reach of children and pets.
❌ DON'T
Do not use after the expiry date.
✈️ Traveling with This Medicine
When traveling, carry this medicine in its original packaging with the prescription label clearly visible. Bring a copy of your prescription or a letter from your doctor, especially for international travel, as some countries have strict rules about importing prescription medicines. Store the tablets in a cool, dry place away from direct sunlight. If you are crossing time zones, keep taking the medicine at the same interval as prescribed; you can adjust the time gradually. Do not pack it in checked luggage in case your luggage is lost. If you need a refill while traveling, visit a local doctor with your prescription and medical records.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: You may start to see improvement in skin infections within 1 to 2 weeks. Nail infections take longer because the nail grows slowly; it may take several months for the infected nail to be replaced by healthy nail.
A: No, you should avoid alcohol while taking this medicine because it increases the risk of liver problems.
A: If you remember within a few hours, take the missed dose. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take two doses at once.
A: This medicine can rarely cause liver injury. Your doctor may check your liver function before and during treatment. Tell your doctor if you have liver disease or drink alcohol regularly.
A: Some medicines can interact with this medicine, including rifampicin, cimetidine, and some antidepressants. Always give your doctor a complete list of all medicines you take.
A: No, you must complete the full course prescribed by your doctor, even if symptoms improve, to prevent the infection from returning.
🤔 Common Patient Concerns
🔄 Substitutes for terbinid 500mg tablet
View AllAlternative brands with exact same active ingredient:
-
davaindia terbinafine 500mg tabletDavaindia Generic Pharmacy ₹90.00 63.9% CHEAPER
-
d-fine tabletParry Pharma Pvt Ltd ₹131.25 47.3% CHEAPER
-
binstal 500mg tabletStallion Laboratories Pvt Ltd ₹135.94 45.4% CHEAPER
-
ifin 500mg tabletGlenmark Pharmaceuticals Ltd ₹136.50 45.2% CHEAPER
-
terbiface 500mg tabletHealing Pharma India Pvt Ltd ₹140.63 43.5% CHEAPER
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: This medicine can cure any skin rash.
Fact: This medicine only treats fungal infections. It does not work for bacterial, viral, or allergic skin conditions. - Myth: You can stop taking this medicine as soon as the symptoms go away.
Fact: You must complete the full course prescribed by your doctor, even if symptoms improve, to prevent the infection from returning. - Myth: This medicine is safe to take without blood tests.
Fact: This medicine can rarely affect the liver, so your doctor may check your liver function before and during treatment. - Myth: This medicine is a cosmetic treatment for yellow nails.
Fact: This medicine is only for confirmed fungal nail infections. It should not be used for cosmetic reasons.
🔄 Alternative Options
Generic Alternatives
- Terbinafine 500 mg tablet
Brand Alternatives
- Ifin 500 Tablet