Antihistamines sedating effect

30-Jun-2017 06:35

H2 blockers (eg, ranitidine, famotidine) commonly are used for the treatment of heartburn and gastroesophageal reflux disease.

These medications decrease gastric acid secretion in the stomach by antagonizing the effects of histamine at H2 receptors found in gastrointestinal parietal cells.

Antihistamines are a class of agents that block histamine release from histamine-1 receptors and are used to treat the symptoms of an allergic reaction, such as edema (swelling), itch, inflammation (redness), sneezing, or a runny nose or watery eyes.

Antihistamines can be further divided into those unlikely to cause drowsiness (non-sedating antihistamines) or those likely to cause drowsiness (sedating antihistamines).

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Placing topical antihistamines on the skin, such as Benadryl cream, can cause contact dermatitis due to the antihistamine.

Antihistamines for Hives (Urticaria)Oral antihistamines are the main treatment for hives.

Newer, low-sedating antihistamines, such as Zyrtec or Claritin, are preferred over the older, sedating antihistamines such as Benadryl or Atarax.

These were some of the first antihistamines scientists developed. They also work in the part of the brain that controls . One of the most common side effects of first-generation antihistamines is feeling sleepy.

For this reason, they are sometimes used to help people who have trouble sleeping (insomnia).

Placing topical antihistamines on the skin, such as Benadryl cream, can cause contact dermatitis due to the antihistamine.Antihistamines for Hives (Urticaria)Oral antihistamines are the main treatment for hives.Newer, low-sedating antihistamines, such as Zyrtec or Claritin, are preferred over the older, sedating antihistamines such as Benadryl or Atarax.These were some of the first antihistamines scientists developed. They also work in the part of the brain that controls . One of the most common side effects of first-generation antihistamines is feeling sleepy.For this reason, they are sometimes used to help people who have trouble sleeping (insomnia).In both cases, the potential for tolerance to the sedative effect of these drugs is an important issue for which there are few objective data.