Doxycycline for dogs is a broad spectrum antibiotic that kills different types of bacterial infections in pets. It’s a prescription medication that’s commonly administered to cure dogs suffering from Lyme disease and Chlamydia. In addition to this, vets often prescribe doxycycline to treat urinary tract infections and certain medical conditions like the Rocky Mountain spotted fever. The common dosage of doxycycline for dogs is 2 mg to 5 mg per pound of body weight given every 12 to 24 hours.
Amoxicillin and doxycycline are always the same med, there are not separate versions for cats and dogs. Veterinary Amoxicillin and doxycycline may be labelled "For dogs only" because they have never actually gone through the FDA approval process for cats. Many medications commonly used in veterinary medicine fall into this category. This does not mean they are less safe or less effective. Veterinarians routinely prescribe these meds "off label" or "extra label" for cats.