The drugs cause desired short-term disruptions in the brain, but they also cause undesirable long-term changes to the brain and other vital organs in the body, leading to drug addiction. Common drug addictions include: 1  Marijuana. 2  Heroin. 3  Cocaine/crack. 4  Synthetic drugs such as bath salts and spice.
1 Penicillin G, common vet prescriptions known as CrystacillinÂ® or Flo-CillinÂ®, is an antibiotic used to treat and prevent bacterial infections in dogs and cats. 2  This is a natural penicillin and is cultured from the bacteria Penicillium chrysogenum.
I recommend you ask your veterinarian. You can give some over-the-counter human medications, but never do so without consulting your veterinarian. You can in fact give your dog aspirin, but you must be careful about the dosage - consult your vet. One substance, not really a medication that is recommended for arthritis is glucosamine chondroitin. Rimadyl is a non-steroidal antinflammatory drug that is available by prescription.