Welcome to our ONLINE SHOP PETHEART SHOP BOX INDICATIONS: For the treatment of respiratory, intestinal and urogenital tract infections and tick-borne infection like Ehrlichiosis in dogs and cats. FORMULATION: Each 5 ml contains: Doxycycline Hydrochloride.... 100 mg DOSAGE AND ADMINISTRATION: Dogs and Cats: 0.25 mL / kg bodyweight every 12 hrs or 0.5 mL / kg bodyweight every 24 hrs for 5-7 days or as prescribed by the veterinarian. CONTRAINDICATION: Last 2-3 weeks of pregnancy in pregnant dogs and puppies less than 4 weeks old.