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permethrin

(per-meth-rin) ,

Acticin

(trade name),

Elimite

(trade name),

Nix

(trade name)

Classification

Therapeutic: pediculocides
Pregnancy Category: B

Indications

1% lotion: Eradication of Pediculus humanus capitis (head lice and their eggs):
  • Prevention of infestation of head lice during epidemics.
5% cream: Eradication of Sarcoptes scabiei (scabies).

Action

Causes repolarization and paralysis in lice by disrupting sodium transport in normal nerve cells.

Therapeutic effects

Death of parasites.

Pharmacokinetics

Absorption: Small amounts (<2%) systemically absorbed. Remains on hair for 10 days.
Distribution: Unknown.
Metabolism and Excretion: Rapidly inactivated by enzymes.
Half-life: Unknown.

Time/action profile (pediculocidal action)

ROUTEONSETPEAKDURATION
Topical10 minunknown14 days

Contraindications/Precautions

Contraindicated in: Hypersensitivity to permethrin, pyrethrins (insecticides or veterinary pesticides), chrysanthemums, or isopropyl alcohol; Lactation: Lactation.
Use Cautiously in: Obstetric: Use only if clearly needed; Pediatric: Children <2 yr (1% lotion); Children <2 mo (5% cream).

Adverse Reactions/Side Effects

Dermatologic

  • burning
  • itching
  • rash
  • redness
  • stinging
  • swelling

Neurologic

  • numbness
  • tingling

Interactions

Drug-Drug interaction

No significant interactions.

Route/Dosage

Head Lice (Treatment and Prevention)
Topical (Adults and Children >2 yr) 1% lotion applied to the hair, left on for 10 min, then rinsed, for 1 application.
Scabies
Topical (Adults and Children) Massage 5% cream into all skin surfaces. Leave on for 8–14 hr, then wash off.
Topical (Infants >2 mo) Massage 5% cream into hairline, scalp, neck, temple, and forehead. Leave on for 8–14 hr, then wash off.

Availability (generic available)

Liquid cream rinse (lotion): 1%OTC
Cream: 5%

Nursing implications

Nursing assessment

  • Head Lice: Assess scalp for presence of lice and their ova (nits) prior to and 1 wk after application of permethrin.
  • Scabies: Assess skin for scabies prior to and following therapy.

Potential Nursing Diagnoses

Impaired home maintenance (Indications)
Bathing/hygiene self-care deficit (Indications)

Implementation

  • Topical: For topical application only.

Patient/Family Teaching

  • Instruct patient to notify health care professional if scalp itching, numbness, redness, or rash occurs.
    • Instruct patient to avoid getting Elimite cream in eyes. If this occurs, eyes should be flushed thoroughly with water. Health care professional should be contacted if eye irritation persists.
    • Advise patient that others residing in the home should also be checked for lice.
    • Instruct patient on methods of preventing reinfestation. All clothes, including outdoor apparel and household linens, should be machine-washed using very hot water and dried for at least 20 min in a hot dryer. Dry-clean nonwashable clothes. Brushes and combs should be soaked in hot (130°F), soapy water for 5–10 min. Remind patient that brushes and combs should not be shared. Wigs and hairpieces should be shampooed. Rugs and upholstered furniture should be vacuumed. Toys should be washed in hot, soapy water. Items that cannot be washed should be sealed in a plastic bag for 2 wk.
    • If patient is a child, instruct parents to notify school nurse or day care center so that classmates and playmates can be checked.
  • Head Lice: Instruct patient to wash hair with regular shampoo, rinse, and towel dry. Each container holds enough medication for one treatment. Shake the container well. Thoroughly wet scalp and hair with the lotion. The patient should use as much of the solution as needed to coat entire head of hair, then discard remainder of solution. Allow lotion to remain on hair for 10 min, then thoroughly rinse hair and towel dry with a clean towel. Comb hair with a fine-toothed comb to remove dead lice and eggs (not necessary but may be desired for cosmetic effects). Products are available for removal of nits (Rid Lice Egg Loosener Gel®Step 2). Schools usually require children to be nit-free prior to returning to school.
    • Explain to patient that permethrin will protect from reinfestation for 2 wk. These effects continue even when the patient resumes regular shampooing.
  • Scabies: Instruct patient to massage thoroughly into the skin from head to soles of feet. Treat infants on the hairline, neck, scalp, temple, and forehead. Remove the cream by washing after 8–14 hr. Usually 30 g (½ tube) is sufficient for adults. One application is curative.

Evaluation/Desired Outcomes

  • The absence of lice and eggs 1 wk after therapy. A second application is indicated if lice are detected at this time.
    • Prevention of infestation of head lice during epidemics.
  • Eradication of scabies following one application.
  • If resistance to permethrin develops, malathion may be used.

Nix

(nĭks)
A trademark for the drug permethrin.

nix

Drug slang
A regional term for an outsider or person unknown to a group of drug users.
References in periodicals archive ?
Nix said that Channel 4 had heavily edited the footage to portray him in a worse light, which the TV channel denied.
Nix had an eye on the United States, where the courts were stripping away restrictions on political spending and empowering a new class of individual megadonors.
Nix, ademas de haber trabajado para Cambridge Analytica, es director de la firma Strategic Communications Laboratories (SCL Group), una contratista de la Defensa britanica, que comparte empleados e informacion con la consultora.
Brad Parscale, who served as campaign's digital director and who helped hire Cambridge Analytica, appeared to dismiss Nix's claims on Wednesday.
"In the view of the board, Mr Nix's recent comments secretly recorded by Channel 4 and other allegations do not represent the values or operations of the firm and his suspension reflects the seriousness with which we view this violation," it said.
Announcing the chief executive's suspension, the company said in a statement that "in the view of the board, Nix's recent comments secretly recorded by Channel 4 and other allegations do not represent the values or operations of the firm and his suspension reflects the seriousness with which we view this violation".
The company also offers to bribe politicians on camera and use such recordings against them."We'll offer a large amount of money to the candidate, to finance his campaign in exchange for land for instance, we'll have the whole thing recorded, we'll blank out the face of our guy and we post it on the Internet," Nix is quoted by Channel 4 as saying.
Walker, of Milnshaw Lane, Accrington, and Nix, of Edleston Street, Accrington, both pleaded guilty to burglary and were jailed for 20 months.
The omission of his name was discovered when Private Nix's niece, Diane Ayres contacted the Carillon Trust to tell them about him.
In addition to Nix Companies, the 2017 list includes other returning powerhouses such as Kona Ice, Consumer Cellular, Pillar Technology, and New Glarus Brewing Company.
So there's an expecta- tion that Nix will have a feline companion on his lap and bear a resemblance to a James Bond villain.