Hirudoid

Hirudoid is a topical medication whose active ingredient is chondroitin polysulfate, supplied in a non‑specified strength as a cutaneous preparation. It belongs to the glycosaminoglycan class and is marketed in the European Union as an over‑the‑counter product. The formulation is applied to the skin to address localized bruising, hematoma, superficial thrombophlebitis, and mild inflammatory conditions. It is intended for external use only and does not require a prescription.

Hirudoid is indicated for several superficial vascular and inflammatory conditions where localized clot formation or swelling is present.

- Bruising (contusions) - Hematoma - Superficial thrombophlebitis - Local inflammation such as minor sprains - Post‑traumatic swelling - Minor skin bruises after surgery

Adverse skin reactions may occur with topical use of Hirudoid.

Common: - Mild irritation or burning at the application site - Redness or erythema - Itching (pruritus) - Dryness or peeling of the skin - Slight swelling localized to the area

Serious: - Allergic contact dermatitis - Severe rash or urticaria - Angioedema or facial swelling - Anaphylactic reaction (rare) - Extensive blistering or necrosis

Before using Hirudoid, consider the following safety points.

- Apply only to intact skin; do not use on open wounds or broken skin. - Keep the product away from eyes, mucous membranes, and the oral cavity. - Discontinue use and seek medical advice if significant irritation or allergic reaction develops. - Avoid use on infected or inflamed skin conditions without professional guidance. - Pregnancy and lactation safety have not been established; consult a healthcare professional. - Not recommended for children under the age specified by local regulations. - Store at room temperature, away from direct sunlight and moisture.

Topical and systemic agents may influence the safety profile of Hirudoid.

Avoid: - Concurrent use of other topical anticoagulants (e.g., heparin or hirudin creams). - Application over large body areas in patients receiving systemic anticoagulants such as warfarin or direct oral anticoagulants. - Use together with other antithrombotic gels or patches.

Use with caution: - Other topical anti‑inflammatory products (NSAIDs, corticosteroids) that may increase skin irritation. - Herbal or dietary supplements with anticoagulant properties (e.g., ginkgo, garlic) when large skin areas are treated. - Extensive or prolonged application that could lead to systemic absorption. - Application on compromised skin with active infection.