Medical devices

Insect repellents – application & health benefits

Insect repellent

Insect repellents keep annoying insects at bay. Insects are not only annoying, they are sometimes also harmful. But the insect repellents must be used with care. Especially on vacation, the funds are often indispensable.

What are insect repellents?

Insect repellents are on the market in various dosage forms. Spray or creams are used quite frequently, but such a remedy is also available as a gel. However, a spray is usually used, in an aerosol container that releases the liquid in bursts.

An insect repellent always has the same goal, the insects should be repelled: Wasps, moths, mosquitoes , flies or even cockroaches are killed with it. Some of these insects are even dangerous to humans, they can transmit diseases and cause skin rashes .

For example, there is a risk of contamination with germs , because if the flies have previously romped around on a dung heap, they can easily carry residues of faeces or pathogens with them. Moths are likely to eat holes in clothing and mosquitoes bite. They can really get to people because the bites itch and diseases such as malaria can also be transmitted.

That’s why sometimes very strong insect repellents are used, which help, but unfortunately also contain insecticides.

Shapes, Species & Types

You can also distribute the insect sprays in living rooms with care, usually all annoying insects are then killed. Unfortunately, there are other animals too, such as bees. Moderate handling should be a matter of course.

These agents can be equipped with a wide variety of insecticides. Pyrethroids and piperonyl butoxide are very common. Pyrethroid has been used for a very long time, it is one of the oldest means of insect control. It is made from the dried flowers of some species of chrysanthemum. The agents have a very strong effect on insects, but pets are hardly affected. Here the toxicity is very low.

Pyrethroids are considered a modification, but half of them are synthetically produced. The effect is significantly stronger. Known are transfluthrin, thetramethrin and permethrin. These agents are effectively used in insect repellents. Piperonly butoxide is not an insecticide, but this substance is found in insect sprays. It often forms the basis of pyrethroid and enhances the effect of the drug.

Caprylic acid is also present in insect repellents, which is a biological agent and is not a neurotoxin. Insects have a vital chitin armor that is dissolved by caprylic acid.

Structure & functionality

As a rule, insect repellents are mixed with organophosphorus compounds. This is a chemical that blocks the action of the enzyme acetylcholinesterase. This is a transmitting substance in the nervous system . In the nerve center, this substance is released by motor neurons . The muscle contact is then stimulated and the nerves are permanently excited.

Pyrethroids are often used in insect repellents; they are neurotoxins that act as contact poisons. However, humans and several species of mammals are equipped with enzymes that quickly break down pyrthroids, which is why these agents are hardly harmful. However, it is different with insects, they do not have their own enzymes and therefore cannot defend themselves against these insect agents. Death comes to them.

Insects also die from permethrin absorbed through the surface of the body. It then spreads throughout the insect’s body and it dies. Permethrin is also used in products for dogs. Fleas, lice, ticks and mites are combated in this way. However, permethrin is only suitable for dogs, cats have to be treated differently. Their organism cannot break down the active substance, and they too would die.

The use of insect sprays is very controversial, but the advantages outweigh other means, depending on the circumstances. A fly swatter is a natural remedy, but usually ineffective. The light sources also magically attract mosquitoes, and an insect repellent is often the only really effective means.

Medical & health benefits

However, insect repellents should only be used with caution. Too high a dosage can cause side effects such as reddening of the skin , burning eyes or itching . These symptoms usually go away quickly.

When inhaled , the agents can cause greater damage: visual disturbances , feelings of anxiety , hearing disorders , dizziness , nausea and headaches can occur afterwards.

When there are babies and small children in the home, the application really needs to be reconsidered. You have significantly fewer enzymes available for detoxification .

Insecticides are often criticized because they contain chemical ingredients. Sometimes, however, it is precisely these substances that can make a major contribution to health, because they prevent the transmission of pathogens by mosquitoes and flies. These remedies can also be very helpful with allergies , such as those triggered by a wasp sting. A wasp sting can be very painful. Malaria and yellow fever are also transmitted by mosquitoes.

Insect repellents must always be used properly. If the agents were used as a room spray, the room should not be entered for several hours. Only when the agent has evaporated again should the room be properly ventilated and the dead insects removed.

Website | + posts

Hello! I am Lisa Newlon, and I am a medical writer and researcher with over 10 years of experience in the healthcare industry. I have a Master’s degree in Medicine, and my deep understanding of medical terminology, practices, and procedures has made me a trusted source of information in the medical world.