Registered Malawi · PMRA

TICK MAGGOT 0.3%M/M OINTMENT

CHLORFENVINPHOS

PMPB/PL29/30 OINTMENT

What it does

Chlorfenvinphos is an insecticide used to control pests.

Commonly used for: pest control, insect eradication

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Plain-language summary for general understanding - not medical advice. Always follow your pharmacist/doctor.

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Answers come only from this medicine's registration record, BNF monograph and interaction data - not medical advice.

Medicine sourcing is available in Kenya only. We don't sell or dispense medicines - licensed pharmacies do.

Sourcing - Kenya only

Registration & product details

Registration no.
PMPB/PL29/30
Registration date
19/01/2001
Expiry date
30/06/2006
Status
Registered
Active ingredient
CHLORFENVINPHOS
Dosage form
OINTMENT
Strength
-
Pack size
-
Therapeutic class
-
Manufacturer / MAH
-
Applicant / LTR
-
Country of origin
-

Source: Pharmacy and Medicines Regulatory Authority · fetched 2026-04-21 17:37:40 · updated 2026-09-29 04:33:05

Disclaimer: This information is sourced from Pharmacy and Medicines Regulatory Authority (Malawi). Always consult a qualified healthcare professional before using any medication.

About this medicine

Chlorfenvinphos is an insecticide used to control pests.

What it treats

  • pest control
  • insect eradication

How it works

Chlorfenvinphos works by disrupting the nervous system of insects, leading to their death.

Who it's for

It is intended for use in agricultural settings to protect crops from pests.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

Clinical monograph: chlorfenvinphos

BNF-referenced

Chlorfenvinphos is an organophosphorus compound primarily used as an insecticide and acaricide. It exhibits potent activity against a wide range of agricultural pests due to its ability to inhibit cholinesterase enzymes, thereby disrupting normal neurotransmission. Chlorfenvinphos is not commonly used in human medicine and is primarily of interest in agricultural settings.

Indications

  • Insecticide
  • Acaricide

Mechanism of action

Chlorfenvinphos acts as an acetylcholinesterase inhibitor. By binding to the active site of the acetylcholinesterase enzyme, it prevents the breakdown of acetylcholine in the synaptic cleft. This leads to an accumulation of acetylcholine, resulting in continuous stimulation of the postsynaptic receptors, which disrupts normal neuronal signaling and causes paralysis in insects.

Pharmacodynamics

The pharmacodynamics of chlorfenvinphos involve its action as a neurotoxin. Its inhibition of acetylcholinesterase results in increased levels of acetylcholine, causing prolonged stimulation of cholinergic receptors. This can lead to symptoms such as muscle twitching, salivation, lacrimation, urination, diarrhea, gastrointestinal distress, and central nervous system effects, including seizures.

Pharmacokinetics

Chlorfenvinphos is absorbed through the skin, respiratory tract, and gastrointestinal tract. Once absorbed, it is distributed throughout body tissues. The compound is metabolized in the liver and excreted primarily through urine. The half-life and specific metabolic pathways can vary based on individual factors and exposure levels.

Contra-indications

  • Hypersensitivity to chlorfenvinphos or any of its components
  • History of seizures or epilepsy
  • Severe liver or kidney impairment

Adverse effects

  • Nausea
  • Vomiting
  • Diarrhea
  • Abdominal pain
  • Headache
  • Dizziness
  • Tremors
  • Muscle twitching
  • Respiratory distress

Interactions

  • Cholinergic drugs may enhance the effects of chlorfenvinphos
  • Anticholinergic drugs may counteract the effects of chlorfenvinphos

Precautions

  • Use with caution in patients with asthma or other respiratory conditions
  • Avoid use in patients with a history of cardiac disease
  • Monitor for signs of cholinergic toxicity

Pregnancy

Chlorfenvinphos should be avoided during pregnancy due to potential risks to the fetus.

Breast-feeding

It is not recommended to breastfeed while using chlorfenvinphos due to potential harmful effects on the infant.

Storage

Store in a cool, dry place away from direct sunlight. Keep out of reach of children.

Formulations

  • Liquid formulations for agricultural use
  • Emulsifiable concentrates

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Molecular reference: chlorfenvinphos

PubChem CID 10107

Molecular formula: C12H14Cl3O4P

Source: PubChem (NCBI) · pathways from PathBank, Reactome, WikiPathways & PharmGKB.

This drug in other countries

The same active ingredient registered across other registries we cover - including different brands.