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.
How Much Aspirin, Ibuprofen, or Tylenol Can I Give My Dog? For all of the above reasons, you should not give NSAIDs, like aspirin and ibuprofen, or other pain relievers, such as Tylenol, to dogs or other pets without the supervision of a veterinarian.