Doses - NALTREXONE HCL
Dogs: 
As adjunctive therapy in behavior disorders: a) For tail chasing or excessive licking: First give 0.01 mg/kg SubQ of naloxone to determine if narcotic antagonists may be effective, if so give naltrexone PO at 1 - 2 mg/kgdaily. Long term therapy may be required. (Crowill-Davis 1992)
For the adjunctive treatment of acral pruritic dermatitis:
a) 2.2 mg/kg PO once daily for one month trial. Some dogs exhibit drowsiness and minorchanges in behavior. 50-60% of patients have benefited. Expense is of concern.(Rosychuck 1991)
Monitoring Parameters - 1) Efficacy; 2) Liver enzymes if using very high dose prolonged therapy
Client Information - Stress the importance of compliance with prescribed dosing regimen.
Additional behavior modification techniques may be required to alleviate symptoms.
Dosage Forms/Preparations/FDA Approval Status/Withholding Times - Veterinary-Approved Products: None