What is paranit for lice? - briefly
Paranit is an over‑the‑counter pediculicide formulated with 1 % permethrin, intended to kill head lice and their nits on contact. It is applied to dry hair, left for the recommended time, then rinsed off.
What is paranit for lice? - in detail
Paranit is a topical formulation designed to eliminate head lice (Pediculus humanus capitis). The product contains the insecticide pyrethrin, often combined with piperonyl butoxide to enhance penetration of the insect’s nervous system. Pyrethrin disrupts sodium channels in nerve cells, causing rapid paralysis and death of the parasite.
Composition and mechanism
- Active ingredient: pyrethrin (0.5–1 % w/v).
- Synergist: piperonyl butoxide (0.5 % w/v).
- Solvent base: water‑glycol mixture that facilitates even distribution on hair shafts.
The synergist blocks metabolic enzymes in lice, preventing rapid detoxification of pyrethrin and extending its lethal effect.
Application procedure
- Wet hair thoroughly with lukewarm water.
- Apply the entire contents of the bottle, ensuring coverage from scalp to hair tips.
- Comb through with a fine‑toothed lice comb to spread the solution and dislodge nits.
- Leave the product on for 10 minutes, then rinse with water.
- Repeat the treatment after 7–10 days to eradicate any newly hatched lice.
Safety profile
- Recommended for individuals aged 2 years and older.
- Contraindicated for infants under 2 years, persons with known pyrethrin allergy, or those with open scalp wounds.
- Mild skin irritation or itching may occur; discontinue use if severe reactions develop.
Efficacy data
Clinical trials report a 95 % reduction in live lice after a single application, with a 99 % eradication rate after the second treatment. Resistance to pyrethrin remains low in most regions, though monitoring is advised where extensive insecticide use is documented.
Storage and handling
- Keep in a cool, dry place away from direct sunlight.
- Seal tightly after each use to prevent evaporation.
- Dispose of empty containers according to local hazardous waste regulations.
Comparison with alternative treatments
- Permethrin 1 % lotion offers similar efficacy but requires a longer exposure time (8 minutes).
- Dimethicone‑based products act physically rather than chemically, suitable for allergy‑prone users but may need multiple applications.
Paranit’s combination of pyrethrin and a synergist provides rapid action with a single‑dose regimen, making it a practical choice for most infestations.