Bronchodilator

• H1 receptor antagonist
• Antimuscarinic effect on vestibular apparatus 

• Allergy
• Rashes
• Pruritis 
• Anxiolytic
• Antiemetic 

Ruminant=0.5-1mg/kg q 6-8hrs I/M or I/V

Dog and cat= 1-2mg/kg PO

• Hypertension
• Hepatic disorder
• Increase intraocular pressure
• Pregnancy

• Dry mouth
• Dizziness
• Nausea
• Increase chest congestion

• Tab. Benadryl AH 25mg capsule
• Tab. Hydramin 25mg capsule
• V Cofex Syrup 500ml, 1L and 5L