Written byDr. Adeline Carol PetersBachelor of Medicine and Bachelor of Surgery (MBBS) — Manipal Academy of Higher Education (MAHE)
Last updated:
Overview
Siam Ketazon Ketoconazole 2% Shampoo is a scalp shampoo that, as its name states, contains ketoconazole 2%. It is intended for people with a flaky, itchy-feeling scalp who want a dedicated scalp-care shampoo in their hair routine. The shampoo is applied to wet hair, worked into the scalp and left on briefly before rinsing, as described on the pack. Because it contains a medicinal active ingredient, it should be used exactly as directed on the label or as advised by your doctor or pharmacist.
Flaking and an itchy-feeling scalp are common complaints, and Malaysia’s hot, humid climate, frequent sweating and use of helmets or headscarves can make the scalp feel uncomfortable. A scalp-focused shampoo such as Siam Ketazon Ketoconazole 2% Shampoo is designed to be massaged directly onto the scalp rather than just the lengths of the hair. Following the recommended contact time and rinsing thoroughly are important parts of using it correctly. Many people use it alongside their regular shampoo on alternate wash days, depending on the pack directions.
Persistent scaling, redness, patches, crusting or itching that does not settle are reasons to see a doctor or pharmacist rather than simply continuing to wash with a scalp shampoo. They can help work out the cause and advise whether this product is appropriate for you. Avoid getting the shampoo in your eyes, and stop using it if your scalp becomes irritated. Always read the full label, including warnings and the list of ingredients, before use.
Directions for Use
Wet your hair and scalp thoroughly with water.
Apply a small amount of shampoo to the scalp and massage gently to form a lather.
Leave on the scalp for the contact time stated on the pack.
Rinse thoroughly with clean water, keeping the shampoo away from the eyes.
Use your regular conditioner on the lengths of the hair if needed.
Storage Instructions
Store below 30°C in a cool, dry place.
Protect from direct sunlight and heat.
Keep the cap tightly closed after use.
Keep out of reach of children.
Side Effects
Siam Ketazon Ketoconazole 2% Shampoo is generally well tolerated when used as directed.
Local scalp irritation, burning or stinging.
Dryness or oiliness of the hair or scalp.
Changes in hair texture or a feeling of hair being harder to manage.
Eye irritation if the shampoo gets into the eyes.
Allergic reactions such as rash, swelling or severe itching (uncommon).
Stop use and consult a doctor or pharmacist if any reaction persists or worsens.
Contraindications
Do not use if you are allergic to ketoconazole or any other ingredient in the product.
Do not apply to broken, raw or severely inflamed skin.
Pregnant or breastfeeding women should check with a doctor or pharmacist before use.
Ask a doctor before using on children.
For external use only; avoid contact with the eyes.
Drug / Food Interactions
No known food interactions.
If you are using other medicated scalp products or prescribed topical treatments (such as steroid lotions), ask your doctor or pharmacist before using them together.
Tell your doctor or pharmacist about all medicines you are taking if you are unsure whether this shampoo is suitable for you.
Quick Tips
Focus the shampoo on the scalp, not just the hair lengths.
Time the contact period so the shampoo is not rinsed off too quickly.
Rinse thoroughly to avoid residue on the scalp.
Wash pillowcases, caps and headscarves regularly.
Do not share towels or combs.
See a doctor or pharmacist if flaking or itching persists.
This medicine should only be used during pregnancy if prescribed by a doctor after careful evaluation.
Breastfeeding
Limited Data
Limited data on excretion in breast milk. Consult a doctor before use.
Kidney
Use With Care
Use cautiously. Dose adjustment or monitoring may be required.
Liver
Not Advisable
Not recommended in patients with liver disease.
Alcohol
Not Advisable
It is not advisable to consume alcohol while taking this medicine.
Driving
Not Advisable
It is not advisable to drive if you experience side effects from this medicine.
Relevant Information
Siam Ketazon Ketoconazole 2% Shampoo contains a medicinal active ingredient and should be used only as directed on the label. It is for external use on the scalp only; avoid contact with the eyes and rinse with water if this occurs.
Keep out of reach of children. If you are pregnant, breastfeeding, buying for a child, or have a long-standing scalp problem, speak to a doctor or pharmacist before use.
Frequently Asked Questions
Apply to wet hair, massage into the scalp, leave on for the time stated on the pack and rinse thoroughly. Keep it away from the eyes. Follow the pack or your pharmacist’s directions on how often to use it.
Use it only as often as the pack or your doctor or pharmacist advises, even if you wash your hair daily because of the heat. On other days, you can use your regular mild shampoo.
Check with a doctor before using it on children. They can advise whether it is appropriate and how it should be used.
Pregnant or breastfeeding women, people with known allergies, those using other scalp treatments and anyone with a long-standing or worsening scalp problem should seek advice first. A pharmacist can help check whether the product suits your needs.
Rinse the scalp with clean water and stop using the shampoo. If the irritation persists or you notice swelling or a rash, consult a doctor or pharmacist.
Yes. You can order Siam Ketazon Ketoconazole 2% Shampoo through the DoctorOnCall online pharmacy website or app. Add the product to your cart, check out, and our pharmacy team will process your order for delivery to your address in Malaysia or Singapore.
We accept payment via Online Banking, Credit Card, and e-Wallets (Boost, GrabPay). Available options are shown at checkout.
Instalment options may be available for eligible orders. Please check the payment options shown at checkout, or contact our Customer Service team for the latest instalment payment plans.
Orders are generally expected to arrive within 3–5 working days in Malaysia and 5–9 working days in Singapore. These are estimated timeframes, not guarantees, and may vary with your location, public holidays and courier schedules.
Delivery fees can vary by location and order. The applicable fee is shown at checkout. For the latest delivery rates and any current offers, please contact our Customer Service team.
Shipping, return and cancellation terms depend on the product and your order status. Please contact our Customer Service team for the current policy before or after placing your order, and they will guide you through the next steps.
Your order is packed with care by our pharmacy team to help keep the product in good condition, and delivered to your address by our courier partners. You will receive updates on your order status after it is dispatched.
Products sold on DoctorOnCall, including Siam Ketazon Ketoconazole 2% Shampoo, are sourced and handled through our standard pharmacy supply process. Always check the packaging, seal and expiry date when you receive your order, and contact our Customer Service team if anything looks wrong.
Product Specifications
Classification
Non-prescription
Ingredients / Active Ingredients
Ketoconazole
Volume
100ml
Dosage
Use only as often as stated on the pack or as advised by your doctor or pharmacist. Do not use more often or for longer than directed; if the scalp does not improve, seek advice rather than increasing use.
Shelf Life
Refer to the expiry date printed on the bottle or carton. Do not use after the expiry date, and follow any instructions on the pack about how long the product can be used once opened.
What condition or symptom are you treating with this medication?
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Important Medical Information
💊 Recommended Dosage:
Use only as often as stated on the pack or as advised by your doctor or pharmacist. Do not use more often or for longer than directed; if the scalp does not improve, seek advice rather than increasing use.
🛑 Contraindications (Do not use if):
Do not use if you are allergic to ketoconazole or any other ingredient in the product.
Do not apply to broken, raw or severely inflamed skin.
Pregnant or breastfeeding women should check with a doctor or pharmacist before use.
Ask a doctor before using on children.
For external use only; avoid contact with the eyes.
If you are unsure, please chat with us or consult your doctor.
⚠️ Common Side Effects:
Nausea or vomiting
Stomach pain
Headache
Dizziness
Itching or skin rash (when applied topically)
Abnormal liver function tests
Hair thinning (topical use)
Stop taking this medication immediately and consult your doctor if you experience severe allergic reactions or side effects.
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IMPORTANT: Unsure? Chat with our pharmacists (Mon - Sat, 9:00am - 6:00pm) before buying.