Europe — EMA
Hascovir Pro (Aciclovir)
Learn about Hascovir Pro, a topical aciclovir antiviral for cold sores, genital herpes, and shingles – uses, side effects, precautions, and FAQs.
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What is Aciclovir?
Hascovir Pro is a topical antiviral medication that contains the active ingredient aciclovir. It is marketed in the European Union and is formulated for external application to the skin. As a nucleoside analogue antiviral, aciclovir works by inhibiting viral DNA polymerase, which helps to limit the replication of herpes viruses. The product is intended for use under the guidance of a healthcare professional and prescribed.
What is Aciclovir used for?
Hascovir Pro is indicated for the topical treatment of certain viral skin infections caused by herpes viruses.
- Cold sores (herpes simplex labialis) on the lips or face. - Genital herpes lesions caused by herpes simplex virus type 1 or 2. - Herpes zoster (shingles) lesions on the skin. - Early‑stage herpes simplex infections to reduce symptom severity. - Post‑exposure prophylaxis for minor skin abrasions at risk of HSV infection.
What are the side effects of Aciclovir?
Side effects of topical aciclovir are generally mild, but some reactions may require medical attention.
Common: - Mild skin irritation or burning at the application site. - Itching or redness. - Dryness or peeling of the treated skin.
Serious: - Allergic contact dermatitis with swelling or blistering. - Severe skin rash or urticaria. - Eye irritation if product contacts the eye.
What precautions apply to Aciclovir?
When using Hascovir Pro, certain precautions should be observed to ensure safety and effectiveness.
- Apply only to intact skin; avoid broken or inflamed areas unless directed by a clinician. - Do not use on mucous membranes, eyes, or genital mucosa without medical advice. - Wash hands before and after application to prevent accidental spread. - Discontinue use and seek medical advice if a rash or severe irritation develops. - Keep the product out of reach of children; store at room temperature away from direct sunlight. - Inform your healthcare provider of any known allergies to aciclovir or similar antivirals.
What does Aciclovir interact with?
Topical aciclovir has limited systemic absorption, yet certain substances may affect its safety or efficacy.
Avoid: - Concurrent use of other topical antiviral agents on the same area without professional guidance. - Application of occlusive dressings that trap heat and increase drug absorption.
Use with caution: - Use with other skin irritants such as corticosteroid creams may increase irritation risk. - Combining with systemic antiviral therapy (e.g., oral aciclovir) should be discussed with a clinician. - Use in patients with renal impairment only under medical supervision.



