cuto shampoo - Ketoconazole (2% w/v) + Zinc pyrithione (1% w/v) medicine

AF-K Lotion: Comprehensive Guide to Uses, Side Effects, and Safety

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🏭 Eclipser Pharmaceuticals 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 23, 2026
🤰 Pregnancy Category Not classified by FDA letter categories. Topical ketoconazole is considered low risk when used as directed, but consult your doctor before use during pregnancy. 📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Evidence: Well-established for indicated conditions.
Reviewed by
SaathiMed Expert Panel | Sep 23, 2026

When to Call Your Doctor IMMEDIATELY

  • Difficulty breathing or swelling of the face, lips, or throat.
  • Severe blistering or peeling of the skin.
  • Signs of a serious allergic reaction such as hives or rash spreading.
  • No improvement after completing the full course of treatment.
  • Symptoms worsening despite treatment.
  • Development of new symptoms such as fever or severe pain.

If experiencing severe symptoms, call emergency services immediately.

What is cuto shampoo used for?

This medicine is a topical antifungal lotion containing ketoconazole 2% and zinc pyrithione 1%. It is used to treat fungal skin infections like tinea versicolor, seborrheic dermatitis, and dandruff. Apply a thin layer to the affected area once or twice daily as directed by your doctor.

  • Generic Name: Ketoconazole + Zinc Pyrithione
  • Manufacturer: Eclipser Pharmaceuticals
  • Form: Allopathy
  • Pregnancy Category: Consult doctor
  • Prescription Required: Yes

🇮🇳 cuto shampoo के बारे में (Hindi Summary)

उपयोग: यह दवा एक टॉपिकल एंटीफंगल लोशन है जिसमें कीटोकोनाज़ोल 2% और जिंक पाइरिथियोन 1% शामिल हैं। इसका उपयोग त्वचा के फंगल संक्रमण जैसे टिनिया वर्सिकलर, सेबोरहाइक डर्मेटाइटिस और डैंड्रफ के इलाज के लिए किया जाता है। यह फंगस को मारकर संक्रमण को ठीक करता है और खुजली, लालिमा और पपड़ी जैसे लक्षणों को कम करता है। इसे प्रभावित हिस्से पर पतली परत में लगाएं।

साइड इफेक्ट्स: इस दवा के सामान्य दुष्प्रभावों में लगाने की जगह पर हल्की जलन, खुजली, लालिमा या सूखापन शामिल हो सकते 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 सांस लेने में कठिनाई, चेहरे या गले में सूजन। ऐसा होने पर तुरंत डॉक्टर से मिलें।

सुरक्षा सलाह: इस दवा का इस्तेमाल सिर्फ बाहरी त्वचा पर करें। आंखों, मुंह, नाक और अन्य श्लेष्मा झिल्ली के संपर्क में न आने दें। खुली चोट या टूटी त्वचा पर न लगाएं। लगाने से पहले और बाद में हाथ धोएं। बच्चों की पहुंच से दूर रखें। गर्भवती या स्तनपान कराने वाली महिलाएं डॉक्टर से सलाह लें।

💡 Did You Know? India has the highest number of USFDA-compliant plants outside the USA.

💊 cuto shampoo Uses & Benefits

  • [{"condition":"Tinea versicolor","description":"A fungal infection caused by Malassezia furfur that leads to discolored patches on the skin.
  • This medicine helps eliminate the fungus and restore normal skin appearance.","evidence":"Well-established"},{"condition":"Seborrheic dermatitis","description":"A chronic inflammatory skin condition often affecting the scalp, face, and trunk, characterized by scaly, red, itchy patches.
  • This medicine reduces Malassezia colonization and inflammation.","evidence":"Well-established"},{"condition":"Dandruff","description":"A common scalp condition with flaking and itching.
  • This medicine helps control the underlying fungal component and reduces flaking.","evidence":"Well-established"},{"condition":"Tinea corporis (ringworm)","description":"A fungal infection of the body that causes ring-shaped, itchy rashes.
  • This medicine is effective against many dermatophytes.","evidence":"Moderate"},{"condition":"Tinea cruris (jock itch)","description":"A fungal infection in the groin area causing itching and redness.
  • This medicine can be used as part of treatment.","evidence":"Moderate"}]

Off-label uses: [{"condition":"Cutaneous candidiasis","description":"Sometimes used off-label for skin yeast infections caused by Candida species.","evidence":"Limited"},{"condition":"Erythrasma","description":"A bacterial skin infection that may sometimes be treated with this medicine due to its antimicrobial properties.","evidence":"Limited"}]

Primary treatment for: Fungal skin infections

Also treats: Seborrheic dermatitis, Dandruff, Tinea versicolor

📋 Drug Information

Generic Name(s)Ketoconazole + Zinc Pyrithione
Brand NameAf-K Lotion
ManufacturerEclipser Pharmaceuticals
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassDERMA
Action ClassAntifungal + Antidandruff
Route of AdministrationTopical
StorageStore at room temperature (15-30°C). Protect from light and moisture. Keep the container tightly closed.
Shelf Life24 months from the date of manufacture.
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
Apply this medicine to clean, dry skin for best results.
2
Use it exactly as prescribed, even if symptoms improve, to prevent recurrence.
3
Avoid using it on large areas or under bandages unless your doctor advises.
4
If you experience severe irritation, stop use and consult your doctor.
5
Keep the affected area clean and dry to help the medicine work better.
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.

Itchy, scaly patches on skin
This medicine is commonly prescribed for fungal skin infections.
Likely Use
Dandruff
This medicine can help control dandruff due to its antifungal properties.
Likely Use
Fever
This medicine is not a fever reducer.
Not Primary
Bacterial skin infection
This medicine is not effective against bacteria.
Not Primary

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionKetoconazole and zinc pyrithione are applied topically. Systemic absorption of ketoconazole through intact skin is minimal. However, if applied to large areas or broken skin, some absorption may occur. Zinc pyrithione is poorly absorbed through the skin. The lotion base helps in spreading the active ingredients evenly over the skin surface.
DistributionAfter topical application, the active ingredients remain largely in the skin layers where they exert their local effect. Systemic distribution is limited. Ketoconazole, if absorbed, is highly protein-bound and distributes into tissues, but this is not significant for topical use.
Protein BindingKetoconazole is highly protein-bound (approximately 99%) in plasma, primarily to albumin. Zinc pyrithione binding is not well characterized for topical use.
MetabolismKetoconazole is metabolized in the liver by cytochrome P450 enzymes, primarily CYP3A4. Zinc pyrithione is not significantly metabolized systemically after topical application.
Half-LifeThe elimination half-life of ketoconazole when absorbed systemically is approximately 2 hours. However, after topical application, systemic levels are negligible, and the half-life is not clinically relevant. Zinc pyrithione half-life is not established for topical use.
ExcretionSystemically absorbed ketoconazole is excreted mainly in bile and feces, with a small amount in urine. Zinc pyrithione is excreted primarily in feces. After topical use, systemic excretion is minimal.
BioavailabilityBioavailability of ketoconazole after topical application is very low (less than 1%) through intact skin. Zinc pyrithione bioavailability is also minimal. The lotion is designed for local action, not systemic absorption.
Onset of ActionImprovement in symptoms such as itching and scaling may begin within a few days of starting treatment. However, complete resolution of the infection may take several weeks, depending on the condition and its severity.
Peak Plasma TimeNot established from the available information for topical application, as systemic absorption is minimal.
Duration of ActionThe effect of a single application lasts for several hours, but the medicine is usually applied once or twice daily as prescribed. The duration of treatment depends on the condition and is typically continued for 2 to 4 weeks to ensure complete eradication.

How It Works

This medicine combines two active ingredients with complementary mechanisms. Ketoconazole, an imidazole antifungal, works by inhibiting the enzyme cytochrome P450 14α-demethylase, which is necessary for the synthesis of ergosterol, a key component of fungal cell membranes. Without ergosterol, the fungal cell membrane becomes weakened and permeable, leading to leakage of cellular contents and cell death. Zinc pyrithione is an antimicrobial agent that disrupts the fungal cell membrane and inhibits fungal growth. It also has antibacterial properties. Together, they provide a broad spectrum of activity against fungi and yeasts, helping to clear the infection and relieve symptoms.

Mechanism Steps

1
Ketoconazole absorption into fungal cells: Ketoconazole penetrates the fungal cell wall and membrane, reaching the intracellular target.
2
Inhibition of ergosterol synthesis: Ketoconazole inhibits the enzyme 14α-demethylase, blocking the conversion of lanosterol to ergosterol, a vital component of the fungal cell membrane.
3
Membrane disruption by zinc pyrithione: Zinc pyrithione interacts with the fungal cell membrane, causing leakage of essential ions and nutrients, and inhibiting growth.
4
Fungal cell death: The combined effects lead to loss of membrane integrity, leakage of cellular contents, and ultimately fungal cell death.
5
Clinical improvement: As the fungal infection is cleared, symptoms such as itching, scaling, and redness subside, and the skin begins to heal.

💡 How to Take cuto shampoo

Strength: Lotion containing ketoconazole 2% w/v and zinc pyrithione 1% w/v.

1Wash your hands before and after applying the medicine.
2Clean and dry the affected area gently.
3Apply a thin layer of the lotion to the affected area and surrounding skin.
4Rub it in gently until it is absorbed.
5Do not cover the area with tight bandages unless instructed.
6Avoid contact with eyes, mouth, and other mucous membranes.
7Use as directed by your doctor, usually once or twice daily.

Dosage Information

Adult DosageApply a thin layer of this medicine to the affected area and surrounding skin once or twice daily, or as directed by your doctor. The duration of treatment depends on the condition being treated; for tinea versicolor, a single application may be sufficient, while other conditions may require 2-4 weeks of therapy. Dose must be individualized by a qualified clinician based on indication, age, and response to treatment.
Pediatric DosagePediatric dosing is not established from available information. Consult a pediatrician for appropriate use in children.
Elderly DosageNo specific dosage adjustments are required for elderly patients. Use as directed by a doctor.
Renal ImpairmentNo dosage adjustment is needed for renal impairment when used topically.
Hepatic ImpairmentNo dosage adjustment is needed for hepatic impairment when used topically. However, if used on large areas or broken skin, consult a doctor.
Maximum Daily DoseNot applicable for topical use. Use only as prescribed by your doctor.

Dosage Timeline

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

⏰ What to Do If You Miss a Dose

📌 Less than half the dosing interval has passed
→ Apply 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 apply a double dose to catch up.

⚠️ Side Effects of cuto shampoo

✅ Common Side Effects

Application site burning (Common (1-10%))
Usually resolves on its own. If persistent or severe, consult your doctor.
Application site itching (Common (1-10%))
Try not to scratch. If itching is bothersome, consult your doctor.
Application site redness (Common (1-10%))
May be a sign of irritation. If it worsens, stop use and consult your doctor.
Skin dryness (Common (1-10%))
Use a moisturizer if needed. Consult your doctor if dryness persists.

🚨 Serious Side Effects

Severe allergic reaction (anaphylaxis) (Rare (<0.1%))
Seek immediate medical attention if you experience difficulty breathing, swelling of the face, lips, or throat, or a severe rash.
Severe skin reaction (e.g., blistering, peeling) (Rare (<0.1%))
Stop using the medicine and seek immediate medical attention.
Contact dermatitis (Uncommon (0.1-1%))
Stop using the medicine and consult your doctor. You may need a different treatment.

⚠️ Rare Side Effects

Photosensitivity
Protect treated areas from sunlight. Consult your doctor if you notice increased sensitivity.
Hair discoloration
Usually reversible upon discontinuation. Consult your doctor if concerned.
Skin atrophy
Prolonged use may cause skin thinning. Use only as directed and consult your doctor if you notice changes.

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Warfarin Moderate
Simvastatin Moderate
Topical corticosteroids Minor

🚨 Major Interactions

  • Other topical antifungals
  • Topical corticosteroids

⚡ Moderate Interactions

  • Warfarin
  • Statins (e.g., simvastatin, atorvastatin)

🍷 Alcohol Interaction

No known interaction with alcohol when used topically. However, alcohol consumption may worsen certain skin conditions. Consult your doctor for personalized advice.

🔎 Check Your Other Medicines

Educational tool. Always confirm with your doctor or pharmacist.

🛡️ Safety & Warnings

🚫 Contraindications

["Known hypersensitivity to ketoconazole, zinc pyrithione, or any component of the formulation.","Do not use on broken skin or mucous membranes unless directed by a doctor.","Avoid contact with eyes."]

⚠️ Warnings & Precautions

["For external use only.","Avoid contact with eyes, nose, mouth, and other mucous membranes.","Do not apply to large areas of the body or under occlusive dressings unless directed by a doctor.","If irritation or sensitization occurs, discontinue use and consult a doctor.","Keep out of reach of children.","If condition worsens or does not improve after the prescribed course, consult a doctor.","Pregnant or breastfeeding women should consult a doctor before use."]

🤱 Lactation Safety

It is not known whether ketoconazole or zinc pyrithione pass into breast milk after topical application. However, systemic absorption is minimal. To be safe, avoid applying to the breast area and consult your doctor before use while breastfeeding.

💊 Overdose Management

Overdose with this topical medicine is unlikely. If accidental ingestion occurs, seek immediate medical attention. Symptoms of oral 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. 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

General Safety

For external use only. Avoid contact with eyes, nose, mouth, and other mucous membranes. If accidental contact occurs, rinse thoroughly with water. Do not apply to open wounds or broken skin unless directed by a doctor. Wash your hands before and after applying the lotion. Do not cover the treated area with tight bandages or dressings unless instructed. Keep out of reach of children. Do not use this medicine for a condition for which it was not prescribed. If you are pregnant or breastfeeding, consult your doctor before use. Inform your doctor about all other medications you are using, including other topical products. Do not use more than the recommended amount or more often than prescribed. If symptoms do not improve after the full course of treatment, consult your doctor.

👴 Special Considerations for Elderly

💡 For Patients Above 65

Elderly patients can use this medicine as directed. No specific precautions are needed, but monitor for skin irritation.

🤰 Pregnancy Planning (TTC)

If you are planning pregnancy, consult your doctor before using this medicine. Topical use is generally considered safe, but medical advice is recommended.

🏥 Post-Surgery Considerations

Consult your doctor before using this medicine on surgical wounds or nearby areas.

🦷 Dental Procedures

No specific considerations for dental procedures. Inform your dentist about all medications you are using.

💚 Lifestyle Tips for Better Results

🏃
Keep your skin clean and dry.
🥗
Avoid sharing towels, clothing, or personal items.
😴
Wear loose-fitting, breathable clothing.
💧
Manage stress as it can worsen skin conditions.
🧘
Follow a balanced diet rich in vitamins and minerals.
🌞
Avoid excessive sweating and heat exposure.

🏋️ Exercise Considerations

No specific exercise restrictions. However, if you sweat heavily, clean the affected area and reapply as directed. Avoid sharing gym equipment if you have a contagious fungal infection.

🥗 Diet Recommendations

Include probiotic-rich foods like yogurt.
Reduce sugar and refined carbohydrates.
Eat plenty of fruits and vegetables.
Stay hydrated.

💼 Impact on Daily Work & Life

This medicine is applied topically and is unlikely to affect your ability to drive or operate machinery. You can continue your daily activities as usual.

🛑 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 if symptoms improve; complete the full course to prevent recurrence.

📅 Long-Term Use Effects

Long-term use of this medicine is generally safe when used as directed. However, prolonged use over large areas may increase the risk of systemic absorption and potential side effects. It is advisable to use it only for the prescribed duration. If long-term maintenance is needed, your doctor will monitor you.

🌿 Non-Medicine Approaches

These can complement medicine but do not replace prescribed treatment.

Other topical antifungals

Clotrimazole, miconazole, or terbinafine may be alternatives.

Evidence: Well-established
Oral antifungals

For severe or resistant cases, oral medications may be prescribed.

Evidence: Well-established

💉 Vaccination Considerations

💉 If You're Getting Vaccinated

No known interaction with vaccines. You can receive vaccines while using this medicine.

📦 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. Keep it in your carry-on luggage if possible. Store at room temperature and protect from extreme heat or cold. If you are crossing time zones, continue your regular application schedule as prescribed. No specific time zone adjustments are needed for topical use. Check customs regulations for carrying medicines abroad.

💰 Cost Analysis & Savings

👥 Real Patient Stories

Educational, anonymized scenarios. Individual results may vary.

👤 A 35-year-old man with tinea versicolor on his back
He noticed light patches on his back that were slightly itchy. His doctor prescribed this medicine to be applied once daily for 2 weeks. After 10 days, the patches started to fade, and the itching stopped. He completed the full course and the patches cleared completely.
💡 Lesson: Consistent application and completing the full course are key to clearing fungal infections.
👤 A 28-year-old woman with seborrheic dermatitis on her scalp
She had persistent dandruff and itching on her scalp. Her dermatologist recommended this medicine to be applied twice weekly. Within 3 weeks, her flaking and itching significantly reduced. She continues to use it as maintenance as advised by her doctor.
💡 Lesson: This medicine can be effective for seborrheic dermatitis, but long-term maintenance may be needed under medical supervision.

💬 Questions Patients Often Ask

Q: How long does it take to work?

A: You may start to see improvement in symptoms like itching and scaling within a few days. However, it may take 2-4 weeks for the infection to clear completely. Continue using as prescribed.

Q: Can I use this medicine on my face?

A: Yes, but only if prescribed by your doctor. Avoid contact with eyes, mouth, and nose. Apply carefully.

Q: Is this medicine safe during pregnancy?

A: Topical ketoconazole is considered low risk, but you should consult your doctor before using it during pregnancy.

Q: What should I do if I experience side effects?

A: Mild irritation is common and usually goes away. If you experience severe reactions, stop use and seek medical attention.

🤔 Common Patient Concerns

💭 These are the concerns patients most commonly raise

  • Can I use this medicine on my face?
  • How long can I use this medicine?
  • Is it safe to use during pregnancy?
  • Can I use it with other skin products?
  • What if I miss a dose?
  • Does it interact with my other medications?

🔄 Substitutes for cuto shampoo

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

🛑 Myths vs. Facts

  • Myth: This medicine can cure all skin rashes.
    Fact: This medicine is specifically for fungal infections. It is not effective for bacterial or viral skin infections.
  • Myth: You can stop using it as soon as symptoms improve.
    Fact: You should complete the full course as prescribed to prevent the infection from returning.
  • Myth: More frequent application will work faster.
    Fact: Using more than prescribed can increase the risk of side effects and does not speed up recovery.

🔄 Alternative Options

Generic Alternatives

  • Ketoconazole 2% lotion
  • Zinc pyrithione 1% lotion

Brand Alternatives

  • Af-k lotion

📊 Comparison with Similar Medicines

[{"medicine":"This medicine","active_ingredient":"Ketoconazole + Zinc pyrithione","route":"Topical","primary_use":"Fungal skin infections"},{"medicine":"Ketoconazole alone","active_ingredient":"Ketoconazole","route":"Topical","primary_use":"Fungal skin infections"},{"medicine":"Zinc pyrithione alone","active_ingredient":"Zinc pyrithione","route":"Topical","primary_use":"Dandruff, seborrheic dermatitis"}]

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