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.
Children who are allergic to penicillin can take clindamycin and trimethoprim-sulfamethoxazole (Bactrim DS) as an alternative.3,5,12 In the case of cat bite, adult patients who are allergic to penicillin can take cefuroxime (Ceftin) 500 mg orally every 12 hours or doxycycline (Vibramycin) 100 mg orally twice a day.