Is it possible to be poisoned with dichlorvos
Insect repellents have become part of our daily lives. Some use them to destroy pests in gardens and gardens, others buy to get rid of parasites in the apartment - bedbugs , flies, cockroaches.
Since the Soviet times, the most effective and widely used drug is dichlorvos. It was so popular that it became firmly established in folklore and from the name of a chemical substance into a nominal name. What kind of funds are hidden behind this name? Can I get poisoned with dichlorvos and how can I give first aid for intoxication?
What is dichlorvos
Before considering the symptoms and treatment of dichlorvos poisoning, let's find out what modern manufacturers hide behind this trademark. Few people know that dichlorvos (DDVF) as such has been banned in Russia for a long time. This once popular insecticide, belonging to the class of organophosphorus compounds, had a number of undeniable advantages:
- quickly acted on all kinds of insects and mites;
- poisoned parasites by ingestion of poison, inhalation of vapors and contact action;
- was relatively low toxic to warm-blooded animals and humans;
- decomposed well in the environment;
- non-toxic to plants, and the waiting period after treatment was 2–5 days.
But along with the positive qualities of the old dichlorvos, there were flaws that with the appearance of new generations of insecticides became more and more obvious.
- Processing in the room required a long exposure and thorough ventilation.
- Dichlorvos poisoning was still possible, because the drug belongs to organophosphate compounds that cause serious damage to the central and peripheral nervous system.
- Indoors, dichlorvos could be inhaled, and when ingested, the average lethal dose of organophosphate was 0.5–2 grams.
All this led to the displacement of the drug by insecticides from the group of pyrethroids and at the present time dichlorvos is excluded from the list of authorized pesticides.
All modern insect repellents, which are called dichlorvos, usually contain permethrin and its derivatives. Often in the trade name, along with the word dichlorvos, there are prefixes - “Neo”, “Super”, “Eco” and others. Further, it is these insect extermination products that we consider in detail - in which cases they are capable of causing harm to health, how poisoning manifests itself, and what is the treatment.
Is dichlorvos harmful to humans?
The composition of the aerosol cans with the common name "Dichlorvos" includes insecticides from the group of pyrethroids:
- piperonyl butoxide.
As well as excipients:
- aliphatic hydrocarbons;
- dimethyl sulfoxide;
All pyrethroids cause paralysis in insect pests and death several hours after treatment. According to the toxic effects on humans, they are referred to the third hazard class, that is, to low toxic substances. Once in the body, permethrin decomposes to the liver to safe metabolites. This means that poisoning with dichlorvos vapors is unlikely, but still possible. Violation of instructions for use of insecticides leads to an accumulation of an excess dose of toxin. With a high concentration of toxin indoors, edema of the mucous membrane of the respiratory tract develops, headache due to vascular spasm, the poison enters the blood and affects the liver, destroying hepatocyte cells.
There is evidence that in a number of people pyrethroids can cause short-term disturbances of peripheral innervation - facial paresthesias, hypersensitivity, ataxia. Allergy sufferers may provoke asthma attacks.
Do not allow the insecticide to enter the mucous membranes of the eyes, nose and mouth. Work should be carried out in a well-ventilated area, while using rubber gloves. It is forbidden to drink, smoke and eat. After treatment, wash your hands with soap, wash and rinse your mouth with water.
The effects of dichlorvos poisoning can be significant in children and small animals, such as cats. Due to the low mass, there is a possibility of receiving a large dose, especially in the case of swallowing a liquid preparation. In such cases, damage to the liver, kidneys, leading to the occurrence of chronic hepatitis and nephritis.
Symptoms of dichlorvos poisoning
Dichlorvos poisoning can occur as a result of inhalation of vapors, getting the drug on the skin and in the gastrointestinal tract. As mentioned earlier, pyrethroids in humans quickly decompose into non-toxic substances. Trouble threatens allergies, small children, pets (cats of all kinds are more sensitive to the effects of insecticides).
If the drug gets on the skin, a hypersensitive reaction is possible, manifested by the following symptoms:
- tingling sensation;
- allergic reactions - erythema, pruritus, swelling.
Signs of dichlorvos poisoning from inhalation of vapors will be as follows:
- respiratory irritation, cough;
- burning and itching of the face;
- increase in body temperature to 38–39 ° C.
Symptoms disappear within 2–3 days.
If the insecticide gets into the eyes, conjunctivitis develops - the mucous membrane becomes red, the tearing increases, the eye hurts and itches.
In case of dichlorvos poisoning, the symptoms in animals are more pronounced. This is due to the fact that pets are often treated with preparations against fleas, while they receive a significant dose. Aggressive behavior develops, becoming convulsive, in severe cases the animal falls into a coma and dies.
First aid for dichlorvos poisoning
What to do when dichlorvos poisoning? If intoxication has occurred in pairs, then the victim is taken to fresh air, providing him with access to oxygen. Rinse mouth with water or a weak solution of baking soda. It is necessary to change clothes, wash open areas of the body and provide a person with bed rest.
If the poison got into the stomach, first aid for dichlorvos poisoning is as follows:
- cause vomiting;
- give an adsorbent;
- 1–1.5 hours after the adsorbent, a salt-based laxative can be taken - Glauber's salt, magnesia.
To quickly remove poison from the body, they drink plenty of fluids and follow a gentle diet.
If dichlorvos got into the eyes, then they are washed with a large amount of water or saline, then anti-inflammatory drug - Albucid or other drops. In case of severe reddening of the mucous membrane of the eyes and eyelids, it is necessary to consult an ophthalmologist.
Treatment for dichlorvos poisoning
When dichlorvos poisoning special treatment is required. It is enough to take measures to eliminate the substance from the skin or from the gastrointestinal tract. When allergic manifestations take a pill "Suprastin" or "Tavegila", lubricate the damaged skin with antihistamine ointments with anti-inflammatory action.
In case of dichlorvos poisoning in children under one year of age, it is necessary to consult a doctor for advice.
We summarize all of the above. Modern insect repellents, on the packaging of which the name “Dichlorvos” flaunts, contain insecticides of a new generation from the group of pyrethroids. Dichlorvos as a chemical substance (DDVF) is currently banned for use and is not produced by the industry. Pyrethroid poisoning can occur with gross violation of processing rules and does not cause serious consequences. A headache, itching and burning of the skin develops, the body temperature rises. Allergic reactions from the skin.
What to do when dichlorvos poisoning? Remove toxin from the body - remove the victim to fresh air and wash open areas of the body with water, if ingested poison - cause vomiting, give enterosorbent and laxative. Patient to provide bed rest. All symptoms disappear in 2-3 days, without any health effects.