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Antihistamines

A drug may be classified by the chemical type of the active ingredient or by the way it is used to treat a particular condition. Each drug can be classified into one or more drug classes.

Antihistamines are drugs that inhibit the action of histamine in the body by blocking the receptors of histamine. There are two types of histamine receptors H1 and H2. When H1 receptors are stimulated by histamine it may produce allergic reactions such as itching, hay fever and rash or hives.

Antihistamines treat the symptoms of allergic reactions. Some antihistamines are sedating and although some are classed as non-sedating antihistamines, they may still cause drowsiness in some people.

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Drug Name DownUp( View by: Brand | Generic ) Reviews Ratings DownUp
Allegra ODT (More...)
generic name: fexofenadine
1 review
   
10
Seldane (More...)
generic name: terfenadine
2 reviews
   
10
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generic name: cetirizine
0 reviews
   
10
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9.7
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generic name: brompheniramine
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9.4
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generic name: chlorpheniramine
12 reviews
   
9.1
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generic name: cetirizine
1 review
   
9.0
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generic name: diphenhydramine
2 reviews
   
9.0
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9.0
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generic name: diphenhydramine
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generic name: chlorpheniramine
1 review
   
9.0
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generic name: promethazine
75 reviews
   
8.4
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generic name: promethazine
0 reviews
   
8.4
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generic name: loratadine
3 reviews
   
8.3
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generic name: levocetirizine
77 reviews
   
8.2
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generic name: fexofenadine
52 reviews
   
8.0
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generic name: diphenhydramine
0 reviews
   
8.0
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generic name: diphenhydramine
3 reviews
   
8.0
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generic name: promethazine
0 reviews
   
7.7
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generic name: diphenhydramine
33 reviews
   
7.5
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generic name: desloratadine
5 reviews
   
7.5
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generic name: diphenhydramine
15 reviews
   
7.5
Zyrtec (Pro, More...)
generic name: cetirizine
85 reviews
   
7.5
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generic name: diphenhydramine
22 reviews
   
7.4
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generic name: clemastine
0 reviews
   
7.0
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generic name: diphenhydramine
0 reviews
   
7.0
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generic name: loratadine
1 review
   
7.0
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generic name: hydroxyzine
1 review
   
7.0
Atarax (Pro, More...)
generic name: hydroxyzine
77 reviews
   
6.5
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generic name: promethazine
0 reviews
   
6.5
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generic name: diphenhydramine
7 reviews
   
6.2
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generic name: hydroxyzine
117 reviews
   
6.2
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generic name: brompheniramine
0 reviews
   
6.0
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generic name: diphenhydramine
11 reviews
   
6.0
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generic name: loratadine
11 reviews
   
5.7
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generic name: loratadine
1 review
   
5.5
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generic name: clemastine
0 reviews
   
5.0
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generic name: diphenhydramine
0 reviews
   
3.0
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generic name: fexofenadine
4 reviews
   
2.0
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generic name: fexofenadine
1 review
   
1.0
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generic name: clemastine
0 reviews
   
0.0
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generic name: dexbrompheniramine
0 reviews
   
0.0
All Day Allergy Children's (Pro, More...)
generic name: cetirizine
0 reviews
   
0.0
Aller-Chlor (More...)
generic name: chlorpheniramine
0 reviews
   
0.0
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generic name: cetirizine
0 reviews
   
0.0
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generic name: cetirizine
0 reviews
   
0.0
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generic name: chlorpheniramine
0 reviews
   
0.0
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generic name: loratadine
0 reviews
   
0.0
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generic name: loratadine
0 reviews
   
0.0
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generic name: diphenhydramine
0 reviews
   
0.0
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generic name: carbinoxamine
0 reviews
   
0.0
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generic name: loratadine
0 reviews
   
0.0
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generic name: diphenhydramine
0 reviews
   
0.0
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generic name: brompheniramine
0 reviews
   
0.0
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generic name: brompheniramine
0 reviews
   
0.0
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generic name: brompheniramine
0 reviews
   
0.0
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generic name: chlorpheniramine
0 reviews
   
0.0
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generic name: carbinoxamine
0 reviews
   
0.0
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generic name: cetirizine
0 reviews
   
0.0
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generic name: loratadine
0 reviews
   
0.0
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generic name: cetirizine
0 reviews
   
0.0
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generic name: chlorpheniramine
0 reviews
   
0.0
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generic name: chlorpheniramine
0 reviews
   
0.0
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generic name: chlorpheniramine
0 reviews
   
0.0
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generic name: desloratadine
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0.0
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generic name: loratadine
0 reviews
   
0.0
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generic name: loratadine
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0.0
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generic name: diphenhydramine
0 reviews
   
0.0
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generic name: clemastine
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0.0
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generic name: diphenhydramine
0 reviews
   
0.0
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generic name: brompheniramine
0 reviews
   
0.0
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generic name: loratadine
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0.0
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generic name: diphenhydramine
0 reviews
   
0.0
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generic name: diphenhydramine
0 reviews
   
0.0
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generic name: diphenhydramine
0 reviews
   
0.0
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generic name: diphenhydramine
0 reviews
   
0.0
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generic name: chlorpheniramine
0 reviews
   
0.0
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generic name: chlorpheniramine
0 reviews
   
0.0
Histex CT (More...)
generic name: carbinoxamine
0 reviews
   
0.0
Histex IE (More...)
generic name: carbinoxamine
0 reviews
   
0.0
Histex PD (More...)
generic name: carbinoxamine
0 reviews
   
0.0
Histex PD Drops (More...)
generic name: triprolidine
0 reviews
   
0.0
Histex Syrup (More...)
generic name: triprolidine
0 reviews
   
0.0
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generic name: brompheniramine
0 reviews
   
0.0
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generic name: brompheniramine
0 reviews
   
0.0
Karbinal ER (Pro, More...)
generic name: carbinoxamine
0 reviews
   
0.0
Leader Allerhist (More...)
generic name: clemastine
0 reviews
   
0.0
LoHist-12 (More...)
generic name: brompheniramine
0 reviews
   
0.0
ohm Allergy Relief (More...)
generic name: loratadine
0 reviews
   
0.0
PBZ (More...)
generic name: tripelennamine
0 reviews
   
0.0
PBZ-SR (More...)
generic name: tripelennamine
0 reviews
   
0.0
PediaCare Children's Allergy (More...)
generic name: diphenhydramine
0 reviews
   
0.0
PediaTan (More...)
generic name: chlorpheniramine
0 reviews
   
0.0
Pediatex (More...)
generic name: carbinoxamine
0 reviews
   
0.0
Pediox (More...)
generic name: carbinoxamine
0 reviews
   
0.0
Poly-Histine (More...)
generic name: pheniramine/phenyltoloxamine/pyrilamine
0 reviews
   
0.0
Ricobid H (More...)
generic name: chlorpheniramine
0 reviews
   
0.0
Scot-Tussin Allergy (More...)
generic name: diphenhydramine
0 reviews
   
0.0
Silphen Cough (More...)
generic name: diphenhydramine
0 reviews
   
0.0
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generic name: brompheniramine
0 reviews
   
0.0
Sleepinal (More...)
generic name: diphenhydramine
0 reviews
   
0.0
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generic name: clemastine
0 reviews
   
0.0
Tavist Allergy (More...)
generic name: clemastine
0 reviews
   
0.0
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generic name: loratadine
0 reviews
   
0.0
Theraflu Thin Strips Multi Symptom (More...)
generic name: diphenhydramine
0 reviews
   
0.0
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generic name: chlorpheniramine
0 reviews
   
0.0
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generic name: diphenhydramine
0 reviews
   
0.0
Tri-Histine (More...)
generic name: pheniramine/phenyltoloxamine/pyrilamine
0 reviews
   
0.0
Triaminic Thin Strips Allergy (More...)
generic name: diphenhydramine
0 reviews
   
0.0
Tripohist (More...)
generic name: triprolidine
0 reviews
   
0.0
Twilite (More...)
generic name: diphenhydramine
0 reviews
   
0.0
Valu-Dryl (More...)
generic name: diphenhydramine
0 reviews
   
0.0
Vanahist PD (More...)
generic name: triprolidine
0 reviews
   
0.0
VaZol (More...)
generic name: brompheniramine
0 reviews
   
0.0
Vicks QlearQuil All Day & All Night 24 Hour Allergy Relief (More...)
generic name: loratadine
0 reviews
   
0.0
Wal-itin (More...)
generic name: loratadine
0 reviews
   
0.0
Zymine XR (More...)
generic name: triprolidine
0 reviews
   
0.0
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