Derfine Cream: Comprehensive Guide to Uses, Side Effects, and Safety
Clinical Reference Standards: CDSCO (Central Drugs Standard Control Organisation), Indian Pharmacopoeia (IP) & WHO | Last Updated: September 2026
When to Call Your Doctor IMMEDIATELY
- Severe allergic reaction: swelling of face, lips, tongue, or throat, difficulty breathing.
- Signs of secondary bacterial infection: increased redness, swelling, pus, or pain.
- Blistering, peeling, or severe irritation at the application site.
- No improvement after completing the full course of treatment.
- Infection spreads to other parts of the body.
- Development of fever or chills.
If experiencing severe symptoms, call emergency services immediately.
What is Fastee Tablet used for?
This medicine is a topical antifungal cream containing terbinafine. It is used to treat fungal skin infections like athlete's foot, jock itch, and ringworm. Apply a thin layer to the affected area once or twice daily as directed by your doctor.
- Generic Name: Terbinafine (NA)
- Manufacturer: Serve Pharmaceuticals
- Form: Allopathy
- Pregnancy Category: Consult doctor
- Prescription Required: Yes
🇮🇳 Fastee Tablet के बारे में (Hindi Summary)
उपयोग: यह दवा एक टॉपिकल एंटीफंगल क्रीम है जिसमें टर्बिनाफाइन नामक सक्रिय तत्व होता है। इसका उपयोग त्वचा के फंगल संक्रमण जैसे एथलीट फुट, जॉक इच, और रिंगवर्म के इलाज के लिए किया जाता है। यह क्रीम फंगस को मारती है और संक्रमण के लक्षणों जैसे खुजली, लालिमा और जलन को कम करती है। इसे प्रभावित त्वचा पर पतली परत में लगाएं, दिन में एक या दो बार, जैसा डॉक्टर द्वारा निर्देशित हो। उपचार का पूरा कोर्स करें ताकि संक्रमण दोबारा न हो।
साइड इफेक्ट्स: इस दवा के आम दुष्प्रभावों में लगाने की जगह पर खुजली, लालिमा, या जलन शामिल हैं। ये आमतौर पर हल्के होते हैं और कुछ समय में ठीक हो जाते हैं। दुर्लभ मामलों में गंभीर एलर्जी प्रतिक्रिया हो सकती है, जैसे चेहरे, होंठ, या गले में सूजन, जो तत्काल चिकित्सा ध्यान की मांग करती है। यदि कोई भी दुष्प्रभाव परेशान करे या ठीक न हो, तो डॉक्टर से संपर्क करें।
सुरक्षा सलाह: इस दवा का उपयोग करने से पहले अपने डॉक्टर को अपनी एलर्जी और अन्य दवाओं के बारे में बताएं। यह केवल बाहरी उपयोग के लिए है; इसे निगलें नहीं और आंखों, नाक, या मुंह के संपर्क में न लाएं। बच्चों की पहुंच से दूर रखें। यदि आप गर्भवती या स्तनपान करा रही हैं, तो उपयोग से पहले डॉक्टर से सलाह लें। निर्देशित अवधि से अधिक समय तक बिना डॉक्टर की सलाह के उपयोग न करें। यदि लक्षण बेहतर न हों या बिगड़ जाएं, तो डॉक्टर से मिलें।
💊 Fastee Tablet Uses & Benefits
[{"condition":"Athlete's foot (tinea pedis)","description":"This medicine effectively treats fungal infections of the feet, relieving itching, burning, and cracking of the skin.","evidence":"Well-established"},{"condition":"Jock itch (tinea cruris)","description":"It is used to treat fungal infections in the groin area, reducing redness, itching, and rash.","evidence":"Well-established"},{"condition":"Ringworm (tinea corporis)","description":"This medicine helps clear ring-shaped fungal rashes on the body and limbs.","evidence":"Well-established"},{"condition":"Tinea versicolor","description":"It may be used to treat this fungal infection that causes patches of discolored skin.","evidence":"Moderate"},{"condition":"Cutaneous candidiasis","description":"This medicine can be effective against certain yeast infections of the skin.","evidence":"Moderate"}]
Off-label uses: [{"condition":"Seborrheic dermatitis","description":"Sometimes prescribed off-label for this inflammatory skin condition, though evidence is limited.","evidence":"Limited"}]
Primary treatment for: Fungal skin infections
Also treats: Athlete's foot, Jock itch, Ringworm, Tinea versicolor
📋 Drug Information
| Generic Name(s) | Terbinafine (NA) |
| Brand Name | Fastee Tablet |
| Manufacturer | Serve Pharmaceuticals |
| Packaging / Form | strip of 7 tablets (Allopathy) |
| Therapeutic Class | |
| Action Class | |
| Route of Administration | Topical |
| Storage | Store at room temperature (15-30°C). Protect from light and moisture. Do not freeze. |
| Shelf Life | 24 months from the date of manufacture. |
| 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 responsible for converting squalene into lanosterol, a precursor of ergosterol. Ergosterol is a vital component of the fungal cell membrane, similar to cholesterol in human cells. When squalene epoxidase is blocked, squalene accumulates inside the fungal cell, and ergosterol production stops. The lack of ergosterol weakens the cell membrane, leading to leakage of cellular contents and ultimately fungal cell death. This action is fungicidal against dermatophytes, meaning it kills the fungi rather than just stopping their growth. Because the target enzyme is specific to fungi, this medicine has minimal effect on human cells, which is why it is safe for topical use.
Mechanism Steps
💡 How to Take Fastee Tablet
Strength: Cream containing terbinafine (NA).
Dosage Information
| Adult Dosage | Apply a thin layer of this medicine to the affected area and surrounding skin once or twice daily, as directed by your doctor. The duration of treatment depends on the type and severity of the infection. For athlete's foot, treatment is usually continued for 1 to 2 weeks after symptoms have cleared to prevent recurrence. For jock itch and ringworm, treatment may last 1 to 2 weeks. 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. |
| Elderly Dosage | No specific dosage adjustments are required for elderly patients when used topically. However, consult a doctor if you have underlying health conditions. |
| Renal Impairment | No dosage adjustment is required for topical use in patients with renal impairment, as systemic absorption is minimal. |
| Hepatic Impairment | No dosage adjustment is required for topical use in patients with hepatic impairment, as systemic absorption is minimal. |
| Maximum Daily Dose | Not established from the available information. Use as directed by your doctor. |
Dosage Timeline
🍽️ Food Timing Guide
⏰ What to Do If You Miss a Dose
⚠️ Side Effects of Fastee Tablet
✅ Common Side Effects
🚨 Serious Side Effects
⚠️ Rare Side Effects
Consult your doctor if you experience any unusual symptoms.
🛡️ Safety & Warnings
🚫 Contraindications
["Hypersensitivity to terbinafine or any component of the cream.","Not for ophthalmic, oral, or intravaginal use."]
⚠️ Warnings & Precautions
["For external use only. Avoid contact with eyes, nose, mouth, and other mucous membranes.","Do not use on large areas of the body or for prolonged periods without medical advice.","If irritation or sensitivity develops, discontinue use and consult a doctor.","Do not use if the tube seal is broken or damaged.","Keep out of reach of children.","If you have diabetes, poor circulation, or a weakened immune system, consult a doctor before use.","Do not share this medicine with others."]
🤱 Lactation Safety
It is not known whether this medicine passes into breast milk when applied topically. However, systemic absorption is minimal. To be safe, avoid applying the cream to the breast area to prevent accidental ingestion by the infant. Consult your doctor before use while breastfeeding.
💊 Overdose Management
Overdose with topical terbinafine is unlikely due to minimal systemic absorption. If accidental ingestion occurs, seek medical attention immediately. Symptoms of overdose may include nausea, vomiting, and abdominal pain. Treatment is supportive and symptomatic.
⏰ Missed Dose
If you miss a dose, apply it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not apply a double dose to make up for a missed one.
Additional Safety Advice
Before using this medicine, inform your doctor if you are allergic to terbinafine or any other medications. This cream is for external use only; do not swallow it or apply it inside the mouth, eyes, or vagina. Avoid contact with the eyes, nose, and mouth. If accidental contact occurs, rinse thoroughly with water. Do not apply this cream to large areas of the body or use it for longer than prescribed without medical advice. If your condition does not improve after the recommended treatment period, or if it worsens, consult your doctor. Keep this medicine out of reach of children. Do not share this medicine with others, even if they have similar symptoms. If you are pregnant or breastfeeding, consult your doctor before using this cream. Inform your doctor if you are taking any other medications, including prescription and over-the-counter drugs. Do not use this cream on children under 12 years of age unless directed by a doctor. If you develop signs of a secondary bacterial infection, such as increased redness, swelling, or pus, contact your doctor.
👴 Special Considerations for Elderly
💡 For Patients Above 65
Elderly patients can use this medicine safely. However, they may have thinner skin and be more prone to irritation. If irritation occurs, consult a doctor.
🤰 Pregnancy Planning (TTC)
If you are planning to become pregnant, consult your doctor before using this medicine. Topical terbinafine is generally considered safe, but it is best to seek medical advice.
🏥 Post-Surgery Considerations
If you have recently had surgery, consult your doctor before applying this cream to surgical wounds or nearby areas to avoid interference with healing.
🦷 Dental Procedures
No specific considerations for dental procedures. This medicine is for topical skin use only.
💚 Lifestyle Tips for Better Results
🏋️ Exercise Considerations
No specific exercise restrictions while using this medicine. However, if you have athlete's foot, avoid walking barefoot in public areas like gyms and locker rooms to prevent spreading the infection.
🥗 Diet Recommendations
💼 Impact on Daily Work & Life
This medicine has no impact on your ability to drive or operate machinery. You can continue your daily activities as usual. However, if you have a contagious fungal infection, take precautions to avoid spreading it to colleagues, such as wearing footwear in shared spaces.
🛑 When to Stop This Medicine
Stop using this medicine if you experience a severe allergic reaction or if your doctor advises discontinuation. Do not stop prematurely even if symptoms improve, as this may lead to recurrence. Consult your doctor if you have completed the prescribed course but symptoms persist.
📅 Long-Term Use Effects
Long-term use of this medicine is generally not recommended unless prescribed by a doctor. Prolonged use may increase the risk of local irritation or allergic reactions. If you need to use it for an extended period, your doctor may monitor for any adverse effects. There is no known systemic toxicity from long-term topical use due to minimal absorption.
🌿 Non-Medicine Approaches
These can complement medicine but do not replace prescribed treatment.
Good hygiene can help prevent fungal infections and support treatment.
Evidence: Well-establishedCan help prevent reinfection, especially for athlete's foot.
Evidence: ModerateReduces moisture and heat, creating an environment less favorable for fungal growth.
Evidence: Well-established💉 Vaccination Considerations
💉 If You're Getting Vaccinated
No known interactions with vaccines. Continue routine vaccinations as scheduled.
📦 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 the prescription label intact. Bring a copy of your prescription in case you need to show it at customs. Store it at room temperature and protect it from extreme heat or cold. If you are crossing time zones, continue applying the cream as per your usual schedule; topical application does not require strict timing adjustments. Keep it in your carry-on luggage if you need it during the flight, but ensure it complies with airline liquid regulations.
💰 Cost Analysis & Savings
👥 Real Patient Stories
Educational, anonymized scenarios. Individual results may vary.
💬 Questions Patients Often Ask
A: You may start noticing improvement in symptoms like itching and redness within a few days. However, it is important to complete the full course of treatment as prescribed, which may last 1 to 2 weeks or longer, to ensure the infection is completely cured.
A: This cream is generally not recommended for use on the face unless specifically instructed by your doctor. The skin on the face is more sensitive and may be more prone to irritation.
A: This medicine is not recommended for children under 12 years of age without a doctor's advice. Consult a pediatrician for appropriate treatment.
A: If you miss a dose, apply 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 apply a double dose.
A: Consult your doctor before using this medicine if you are pregnant or planning to become pregnant. Your doctor will weigh the benefits and risks.
🤔 Common Patient Concerns
🔄 Substitutes for Fastee Tablet
View AllAlternative brands with exact same active ingredient:
-
derfine creamZyris Derma Care (P) Ltd ₹46.61 58.9% CHEAPER
-
Tef TabletDermo Care Laboratories ₹88.13 22.2% CHEAPER
-
Terbicide TabletPanzer Pharmaceuticals Pvt Ltd ₹150.00 32.4% COSTLIER
-
finlite tabletLa Med India ₹205.31 81.2% COSTLIER
Medical Note: Always consult your doctor before switching medications.
🛑 Myths vs. Facts
- Myth: This cream can cure fungal infections instantly.
Fact: Fungal infections require consistent treatment for several days to weeks to fully resolve. - Myth: You can stop using the cream as soon as symptoms disappear.
Fact: It is important to complete the full course of treatment to prevent recurrence. - Myth: This cream can be used for any skin rash.
Fact: This medicine is specifically for fungal infections. Using it for other rashes may not help and could cause irritation.
🔄 Alternative Options
Generic Alternatives
- Terbinafine cream
Brand Alternatives
- Derrifine
- Terbicip
- Lamisil