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.
A typical tablet contains 200 milligrams, so only a fraction of that pill is safe for most dogs. When your pet is in pain, it's common to want to administer a painkiller like Ibuprofen or aspirin. Dogs should not take human medications. Ask your vet about safe dog medicines. Despite the low cost, dogs rarely survive Ibuprofen overdose.