Nix (Permethrin)

Permethrin, the active ingredient in Nix, is a pyrethroid presented as a topical preparation for skin application. It is used to treat parasitic skin infestations such as scabies and head lice in children and adults, and the formulation is designed for external use, allowing the drug to act directly on the parasites on the skin surface.

GNH USA supplies Nix as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Permethrin is a topical antiparasitic that works against ectoparasite infestations. - Scabies: eliminates the Sarcoptes scabiei mite, relieving itching and skin lesions. - Crusted scabies: reduces heavy mite burden in severe, hyperinfested cases. - Pediculosis (lice): eradicates head lice and their eggs, preventing re‑infestation.

Topical permethrin may cause local skin reactions and, rarely, systemic hypersensitivity.

Common Side Effects: - Mild skin irritation: transient redness or itching at the application site. - Burning sensation: brief warmth felt after applying the cream. - Dryness: temporary flaking or scaling of the skin. - Rash: localized erythematous rash.

Serious or Rare Side Effects: - Allergic reaction: hives, swelling, or anaphylaxis requiring medical attention. - Severe dermatitis: extensive blistering or ulceration of the skin. - Facial swelling: angioedema affecting the lips or eyes. - Neurological symptoms: dizziness or seizures in extremely rare cases.

When using Nix, follow these safety measures to minimise risk. - Use on intact skin only: avoid applying to cuts, abrasions or inflamed areas. - Age restriction: not recommended for infants younger than 2 months. - Eye contact: keep product away from eyes; rinse thoroughly if accidental exposure occurs. - Pregnancy and breastfeeding: consult a healthcare professional before use. - Concomitant topical agents: avoid using other medicated creams on the same area without guidance. - Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Permethrin has limited systemic interactions, but certain topical combinations may affect tolerability.

Major Interactions (Avoid): - Concurrent use with other pyrethroid insecticides: may increase skin irritation. - Application with strong chemical hair treatments: can cause chemical reactions on the scalp.

Moderate Interactions (Monitor Closely): - Use with topical corticosteroids: may mask irritation signs. - Use with sunscreen or moisturizers: may reduce drug absorption. - Use with systemic medications metabolized by CYP enzymes: unlikely but monitor for unexpected effects.