Antihistamines Include:

First Generation ( Non-selective )

Ethanolamine-

Carbinoxamine. Clemastine, Diphenhydramine. Ethylenediamines- Pyrilamine, Triplennamine Akylamines- Brompheneramine, Chlorpheniramine, Dexchlor pheniramine,Pheniramine,Triprolidine Phenothiazines- Methidilazine, Promethizine, trimeprazine

Piperidines- Azatadine, Cyproheptadine, Phenindamine Miscellaneous- Astemazole, Loratadine, Terfenadine Second Generation ( Peripherally selective ) Phthalazinone - Azelastine Piperazine - Cetrizine Refer - Chlorpheniramine maleate

Studies with diazepam and cimetidine have revealed no evidence of interactions.

As with other antihistamines, it is advisable to avoid excessive alcohol consumption. CNS depressants

Allergic disorders

Antihistamines Include: First Generation ( Non-selective )

Ethanolamine- Carbinoxamine. Clemastine, Diphenhydramine. Ethylenediamines- Pyrilamine, Triplennamine Akylamines- Brompheneramine, Chlorpheniramine, Dexchlor pheniramine,Pheniramine,Triprolidine Phenothiazines- Methidilazine, Promethizine, trimeprazine

Piperidines- Azatadine, Cyproheptadine, Phenindamine Miscellaneous- Astemazole, Loratadine, Terfenadine Second Generation ( Peripherally selective ) Phthalazinone - Azelastine Piperazine - Cetrizine Refer - Chlorpheniramine maleate

Occasional reports of mild and transcient subjective side effects such as headache, dizziness, drowsiness, agitation, dry mouth, and GI discomfort.

Occasional symptoms of hypersensitivity have been reported.

Hypersens to the drug,lactation.

Special precautions:

Do not exceed recommended dosage.

Caution while driving or operating machinary. Elderly with reduced renal function.

Renal impairment

Approved by FDA on December 12,1995..

Indications:

Allergic disorders

Dosage:

5,10 and 20mg/day for once daily treatment of seasonal and allergic rhinitis,allergic rhinitis and chronic idiopathic urticaria.

Antihistamines Include: First Generation ( Non-selective )

Ethanolamine- Carbinoxamine. Clemastine, Diphenhydramine. Ethylenediamines- Pyrilamine, Triplennamine Akylamines- Brompheneramine, Chlorpheniramine, Dexchlor pheniramine,Pheniramine,Triprolidine Phenothiazines- Methidilazine, Promethizine, trimeprazine

Piperidines- Azatadine, Cyproheptadine, Phenindamine Miscellaneous- Astemazole, Loratadine, Terfenadine Second Generation ( Peripherally selective ) Phthalazinone - Azelastine Piperazine - Cetrizine Refer - Chlorpheniramine maleate

Refer antihistamines

Reduction in rate but not extent of absorption

Refer antihistamines