Doses - HYDROXYZINE HCL, HYDROXYZINE PAMOATE

Dogs:

a) For pruritus: 2.2 mg/kg PO tid (q8h) (Gershwin 1992), (Paradis and Scott 1992)
b) For atopy: 2.2 mg/kg PO q8-12h (White 1994)
c) For flea allergy dermatitis: 2 mg/kg q8h PO (Griffen 1994)
d) As an antihistamine: 2.2 mg/kg PO tid (Bevier 1990)

Horses:

a) 0.5 - 1 mg/kg IM or PO bid (Robinson 1992)
b) Using the pamoate salt: 0.67 mg/kg PO twice daily (Duran 1992)
Birds:a) For pruritus associated with allergies, feather picking or self-mutilation: 2 mg/kg q8h
PO or 1.5 - 2 mg per 4 oz of drinking water daily; adjust dose to minimize drowsinessand maximize effect. (Hillyer 1994)
Monitoring Parameters - Efficacy and Adverse Effects
Client Information - May cause drowsiness and impede working dogs' abilities.
Dosage Forms/Preparations/FDA Approval Status/Withholding Times - Veterinary-Approved Products: None

Human-Approved Products:

Hydroxyzine HCl Oral Tablets 10 mg, 25 mg, 50 mg, 100 mg; Atarax® (Roerig), Anxanil® (filmcoated tabs) (Econo Med), generic; (Rx)
Hydroxyzine HCl Oral Solution 10 mg/5 ml; Atarax® (Roerig), generic; (Rx)
Hydroxyzine HCl Injection (for IM use only) 25 mg/ml in 2 ml syringes & 1 and 10 ml vials &50 mg/ml in 2 ml amps, 1 & 2 ml syringes & 1, 2 and 10 ml vials Vistaril® (Roerig) is themost commonly known trade name, there are several others including generically labeledproducts available; (Rx)
Hydroxyzine Pamoate Oral Capsules (equivalent to hydroxyzine HCl) 25 mg, 50 mg, 100 mg;
Vistaril® (Pfizer), generic; (Rx)
Hydroxyzine Pamoate Oral Suspension (equivalent to hydroxyzine HCl) 25 mg/5 ml;Vistaril® (Pfizer); (Rx)