Antihistamines in allergies

30 Sep

Antihistamines in allergies

Using the functionality of the site, you can order the necessary drugs from home and pick them up at a convenient time. To do this, you need to choose the necessary medications on the site and pay for them. Before ordering antihistamines, you should carefully read the instructions – they are available on the portal website.

Antihistamines are medicines aimed at blocking the receptors of histamine, a chemical substance in the body that regulates sleep and waking, and can cause allergic reactions: respiratory edema, gastrointestinal and cardiovascular disorders. There are several generations of antihistamines. What is their difference and what are they used for?

Antihistamines of the 1st generation

Medicines of this variety easily overcome the barrier between blood and brain, which causes sleepiness and distracted attention. This group of drugs has a short-term effect, so they must be taken several times during the day. Antihistamines of the 1st generation reduce tension in human muscular tissues, fight allergy symptoms and can be used as an anesthetic.

Antihistamines of the 2nd generation

The difference between drugs of the second generation and the first group is that these drugs have no sedative effect. In addition, a person can only take one tablet a day. These drugs are more active, their work is mainly aimed at eliminating allergic reactions. These are the drugs that doctors can prescribe for a long period of allergic reactions.

Antihistamines of the 3rd generation

The research and development of antihistamine drugs is not standing still. What is the advantage of third generation drugs? Medicines of this group are quickly absorbed from the gastrointestinal tract, so the drug action is faster. They are not addictive and have no sedative effects, ie, do not cause sleepiness. It is often used in the treatment of skin allergic reactions, itching and redness.

Use of antihistamines

  • Allergy is the hypersensitivity of the human body to certain substances. It develops through direct contact of the skin, mucous membranes, respiratory tract with the provoking factor and manifests itself:
  • edema;
  • itchy skin;
  • eruptions;
  • tearfulness, intolerance to bright light;
  • shortness of breath.

Ways of allergen penetration into the body are different. It can enter the nose during the act of breathing, settling on the skin. In the situation of food allergies – to penetrate along with the food and drinks consumed. Treatment of allergies with antihistamines and hormonal drugs is always coursework. Most often, you should take antihistamines for a while even after the symptoms disappear. Antiallergic pills, presented in pharmacies, are made by well-known companies. They do not cause sleepiness, they can be used by drivers, persons whose professional activity requires a high concentration of attention.

Forms of the drugs

Allergy medications are available in different types. They can be used orally or locally – buried in the nose, eyes, applied to the skin. The list of forms of release also includes solutions for intramuscular and intravenous injection.

Most often, they can be purchased in these types:

  • eye and nasal drops;
  • sprays;
  • pills;
  • syrups;
  • suspensions;
  • capsules and others.

If you need to buy quality allergy medications, we recommend you to visit Here you can quickly find everything you need and even get professional advice. If you need medicines, it is best to work with specialized stores.