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.
For example, Nordic Naturals recommends one capsule of its 1500 mg soft gel fish oil for large dogs weighing 20 pounds or more. Smaller animals should get smaller doses. If you use fish oil that is intended for humans, you can give larger dogs a capsule or two (depending on the dosage) and puncture a capsule to squeeze some of the contents into the food of smaller dogs or cats.