Non sedating antihistamines definition
The antihistamines are divided into histamine-blocking drugs are effective in the control of gastric secretions and are often used in the treatment of gastroesophageal reflux.Antihistamines can both stimulate and depress the central nervous system. One of a group of drugs which act against histamine-a powerful and highly irritant agent released in the body by MAST CELLS, after contact with certain ALLERGENS.A sedative is a medication that induces calm, relaxation, and usually, decreases anxiety.Sedatives - especially at higher doses - can induce sleep. Many are ingredients of compound preparations used to treat coughs or the common cold.Patients for whom an antihistamine has been prescribed should be instructed about the side effects of these drugs, including drowsiness, dizziness, and muscular weakness.Another one I like to use is hydroxyzine (also known as Vistaril or Atarax) but that is only available as a prescription, however its metabolite is Zyrtec, which is OTC. Read more Antihistamine has minimal effect on vomiting although Phenergan (promethazine) may provide mild benefits. You need to find out what may be causing your vomiting first. Read more Claritin is a second generation antihistamine which causes much less drowsiness than first generation antihistamine, like benadryl (diphenhydramine). Not really taking the drug between 4 to 6 pm helps not the D form) as that is before things bloom adding in a nasal steroid spray (which is otc) in the am also helps. Any antihistamine can cause drowsiness, but second-generation antihistamines are much less likely to do so.
Older ones in the tca class (elavil, anafranil, etc), trazodone and even a more modern one like Remeron (mirtazapine) do so which can lead to increased sleepiness and appetite.
These side effects present a special hazard in driving an automobile or operating heavy machinery.