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Anhydrol Forte

Dr Karen Martin
Reviewed by Dr Karen MartinReviewed on 19.10.2023 | 2 minutes read

Anhydrol Forte is a roll-on solution that contains the active ingredient, aluminum chloride hexahydrate, at a 20% concentration. It is licensed over the counter to treat excessive sweating (also known as hyperhidrosis) of the armpits, hands, and feet. Anhydrol Forte can be used by adults and children and is safe during pregnancy and breastfeeding.

How do I use Anhydrol Forte?

You should apply the medication at night before you go to bed and then wash it off in the morning. Do not reapply the medication during the day. It is recommended that you follow a two-nightly treatment cycle, whereby you apply the medication for two nights in a row and then have a break for two nights. However, you can adjust the frequency of application to suit your personal needs. You can apply the medication to your skin in the same way you would use a roll-on deodorant.

Affected areas must be dried thoroughly and carefully before applying the medication to prevent it from causing a burning sensation on the skin. You should also ensure you only apply the medicine to affected areas and do not use it on broken or irritated skin. Avoid shaving hair or using hair removal products on affected areas within 12 hours (before or after) of using the medication.

Let the medication dry before putting any clothes over the applied areas, as aluminum chloride hexahydrate can stain them. Contact with jewelry and metal surfaces should be avoided as it can also stain these. You can also use it with deodorant.

How does it work?

Aluminum chloride hexahydrate reduces sweating by blocking sweat ducts in the skin. It is also thought to kill bacteria on the skin that cause body odor. This happens when aluminum chloride hexahydrate reacts with water on the skin to produce hydrochloric acid.

Who should not use the medication?

Anhydrol Forte is not suitable for everyone. You should not use Anhydrol Forte if you have previously had an allergic reaction to aluminum chloride hexahydrate or another ingredient listed in the medication.

Anhydrol Forte is unlikely to interact with other medicines.

Are there any side effects?

Some people are bound to experience unwanted side effects, as with all medications. These can include burning sensations, stinging, irritation, itching, swelling, rashes, pain, and redness at the application site. Speak to your doctor if any of these side effects become bothersome. Reducing the frequency of application can help to reduce these side effects.

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This article has been written by UK-based doctors and pharmacists, so some advice may not apply to US users and some suggested treatments may not be available. For more information, please see our T&Cs.
Dr Karen Martin
Reviewed by Dr Karen Martin
Reviewed on 19.10.2023
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