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.
Other Cautions and Considerations. Do not used amoxicillin for kennel cough treatment if your dog has a sensitivity or allergies associated with drugs of this type. Drugs like chloramphenicol, allopurinol, probenecid and tetracycline can cause a serious reaction when given with amoxicillin.