Aspirin 325 mg: aspirin, preferably buffered, can be used in dogs but not in cats. Aspirin is effective for relieving pain and discomfort associated with arthritis and other musculoskeletal disorders. Do not use aspirin if there is any reason to suspect that there may be bleeding resulting from an injury as aspirin can make bleeding worse. Always give with some food (like peanut butter or cheese) as this will be easier on their stomach. You should always check with your veterinarian ahead of time to make certain that aspirin is not contraindicated for your pet. The dose for dogs is 10mg/lb every 8 to 12 hours as needed (a 30 lb dog would receive one pill, every 8 to 12 hours as needed). Multiply the dogs weight (30 lbs) times ten (dosage per pound) and you come up with 300mg, so one tablet of 325mg would be adequate for a 30 lb dog.
Antihistamine, Diphenhydramine 'Benadryl' 25mg: can be used in dogs to relieve symptoms from hives or skin allergy. Unlike in humans were allergic reactions often manifest in respiratory problems or asthma like symptoms, allergies in dogs often manifest in skin problems such as itching or hives. However, occasionally more serious consequences of allergies related to anaphylaxis can present with sudden swelling and difficulty breathing, in this case one should seek veterinary medical care. This medication may cause drowsiness. You should always check with your veterinarian ahead of time to make certain that diphenhydramine or 'Benadryl' is not contraindicated for your pet. Use the dosage rate of 1mg/lb every 8 to 12 hours, so a 25 lb dog would receive one tablet every 8 to 12 hours.
Hydrogen Peroxide 3%: is handy to have around to be used as a topical antiseptic to clean superficial cuts and scrapes. It is also an effective emetic (induces vomiting). To use as an emetic to induce vomiting administer 5 to 10 cc orally for every 10 lbs of body weight. A 30 lb dog would require 15 to 30 cc (1/2 to 1 oz) per dose. This can be repeated 2 or 3 times. Use the 60cc syringe to administer. (1cc = 1ml, 30cc = 1 oz).