Medication info

Dryanac (Aluminium Chloride)

OTC medication
Ingredient · strength
Aluminium Chloride›20g / 100mL
Manufacturer / importer
동화약품(주)
Appearance
A colorless or light yellow transparent liquid with a peculiar odor
Packaging
30 milliliters/bottle
Approval status
Active

MFDS item code 202301701 · Notified 2023.05.30

Summary

Main use
Relief of hyperhidrosis (underarms, hands, feet)
Who uses it
Adults
Adult dosage
Apply an appropriate amount to the affected area in the evening and wash it off with water the next morning. Use it once every night until sweating stops, and if symptoms improve, reduce to 1–2 times a week.

Ingredients

Manufacturer
동화약품(주)

Efficacy & effects

Relief of hyperhidrosis (underarms, hands, feet)

  • Hyperhidrosis of the underarms
  • hands
  • and feet
View approved original text

This medication is used to relieve hyperhidrosis, or excessive sweating, that occurs in specific areas such as the underarms, hands, and feet. These symptoms can cause discomfort in daily life, and this medication helps improve them.

Dosage and Administration

Adult dosage

Apply an appropriate amount to the affected area in the evening and wash it off with water the next morning. Use it once every night until sweating stops, and if symptoms improve, reduce to 1–2 times a week.

Precautions

This medication should not be used by individuals who are allergic to this medication or any of its components. When using this medication, do not apply it to skin that has been shaved within 12 hours or to damaged or irritated skin. Depilatories should not be used within 12 hours before or after using this medication, and care should be taken to avoid contact with mucous membranes such as the eyes, nose, and mouth. If contact with the eyes or mucous membranes occurs, rinse immediately with clean water. Pregnant women should consult their physician before using this medication, as reproductive toxicity has been reported in animal studies, thus caution is required. Women who are breastfeeding should also consult with a professional before using this medication and should take care to avoid contact with the breast area. If contact occurs, clean any traces of the medication from the breast before breastfeeding. For children under 12 years old, the safety and efficacy of this medication have not been established, and consultation with a professional is necessary before use. If any abnormal symptoms such as skin irritation, rash, itching, or redness occur while using this medication, discontinue use immediately and consult a professional. As sweating decreases, skin irritation may occur, so it is advisable to stop use if symptoms worsen. Using this medication more frequently than recommended can lead to increased skin irritation, so caution is advised. If accidentally ingested, symptoms such as nausea, vomiting, diarrhea, and burning sensations in the mouth and throat may occur; in such cases, rinse the mouth thoroughly and follow the instructions of medical personnel. This medication contains ethanol, which can be systemically absorbed in case of overdose, hence caution is required. Excessive use may cause skin peeling or redness, and applying a moisturizer or 1% hydrocortisone cream may be helpful if these symptoms arise. The treatment area must be completely dry before application, as this medication can react with water and irritate the skin. Apply only to the treatment area, and avoid direct contact with clothing, metals, or precious metals. This medication must be stored in a light-sensitive container, and it is important to keep it in a cool place below 25 degrees to maintain its effectiveness. Transferring to another container may lead to misuse or degradation of the medication's quality.

Side effects and when to seek care immediately

Mild side effects

Irritation at the application site, dermatitis at the application site, pain, itching, erythema, rash, skin burning sensation, nausea, vomiting, diarrhea, burning sensation in the mouth and throat, redness, desquamation (peeling skin)

Not everyone experiences these, and they can vary from person to person.

Interactions

Drug interactions

This medication should not be used with depilatories; do not apply depilatories to the affected area within 12 hours before or after using this medication.

Storage

This medication is sensitive to light and should be stored in a light-blocking container. Additionally, it is important to store it in a cool place below 25 degrees to maintain its effectiveness.

Appearance and packaging

Appearance

A colorless or light yellow transparent liquid with a peculiar odor

Package unit

30 milliliters/bottle

Same-ingredient medicines

Even with the same ingredient, strength, dosage form and how it is taken can differ.

Even with the same ingredient, the dose and directions can differ by strength and dosage form. Talk to a doctor or pharmacist before switching from a medication you are already taking.

Questions about this medicine

  • QIs it okay to apply after underarm hair removal?

    The depilatory cream is advised not to be used on the affected area within 12 hours before and after using this medication. If irritation or redness worsens after application, temporarily stop using it, and consult a doctor or pharmacist if a hypersensitivity reaction occurs.

    Answers 1 · 2026.09.14

  • QCan I use it in the morning before going out?

    The product's instructions state to apply in the evening and wash off with water the next morning. Use once every night until sweating stops, and reduce to 1-2 times a week once improvement is seen.

    Answers 1 · 2026.09.14

For anything that needs medical judgment, consult a doctor or pharmacist.

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This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.