ASA.P® — Topical (via the skin) pain control for skin pain
ASA.P® is Auxesis Pharma’s topical medicine for skin pain, developed for fast, local treatment of irritation, inflammation and pain directly in the skin.
It is based on the world’s first stable, liquid form of acetylsalicylic acid (ASA) and is designed to treat pain where it occurs — without burdening the rest of the body.
ASA.P® provides effective pain-control effect for insect bites, wasp stings, jellyfish stings and other skin pain.

What is ASA.P®?
ASA.P® is an over-the-counter, topical (via the skin) pain-control medicine applied directly to the skin. It is developed to treat both everyday discomfort and sensitive types of skin pain.
Today, there is no other OTC medicine that removes pain and irritation in the skin in a fast and targeted way. Available products often provide a cooling or temporary effect — but the effect wears off quickly and application must be repeated.
Unlike tablets that act via the bloodstream, ASA.P® is applied locally, which means it:
- penetrates the skin
- acts directly where the pain occurs
- reduces swelling and irritation locally
- provides faster pain-control than oral alternatives

Common areas of use
Each formula is developed with precision and thoroughly tested. We use ingredients that act quickly and safely.
Why topical pain-control treatment?
Skin pain often starts locally — from bites, burns, irritation or inflammatory reactions. Despite that, symptoms are often treated with systemic medicines even when the issue is in the skin.
Topical treatment makes it possible to treat pain directly in the skin, where it actually is.
The technology enables you to:
- treat pain where it occurs
- avoid unnecessary systemic exposure
- deliver fast and clear effect
- reduce the need for other pain medicines

How ASA.P® works
ASA.P® is built on Auxesis’ unique stabilization of ASA in liquid form. Acetylsalicylic acid blocks COX-2 — an enzyme that drives inflammation and pain.
ASA.P® is developed for both everyday discomfort and sensitive types of skin pain.
Today there is no other OTC medicine that removes pain and irritation in the skin in a fast and targeted way. Available products often provide a cooling or temporary effect — but the effect wears off quickly and application must be repeated.
Unlike tablets that act via the bloodstream, ASA.P® acts locally, which provides:
- penetrates the skin
- acts directly where the pain occurs
- reduces swelling and irritation locally
- provides faster pain-control than oral alternatives
Safety and research
ASA.P® is developed in Sweden according to established routines for topical medicines. The work includes, among other things:
- stability testing
- toxicology assessments
- skin penetration studies for topical use


Frequently asked questions about ASA.P®
Here you’ll find answers to the most common questions about ASA.P® and its use.
ASA.P® is Auxesis Pharma’s candidate for topical pain-control treatment in humans. It is developed to treat pain and inflammation directly in the skin without affecting the whole body.
Unlike tablets and other systemic pain medicines, ASA.P® acts locally where the pain arises. This reduces systemic exposure and can lower the risk of systemic side effects.
ASA.P® is designed to penetrate the skin and provide fast local effect for pain and inflammation. Exact onset is being further evaluated in clinical studies.
Acetylsalicylic acid has been used medically for over a hundred years. ASA.P® is based on Auxesis’ patented technology that stabilizes the substance for safe and controlled topical use.
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