<unk>  also known as penicillin G<unk> , is an antibiotic useful for the treatment of a number of bacterial infections. Specifically it is used for syphilis, anthrax, mouth infections, pneumonia, diphtheria, cellulitis, and animal bites. It is given by injection into a muscle. Side effects include pain at the site of injection, blood clotting problems, seizures, and allergic reactions including anaphylaxis. When used to treat syphilis a reaction known as Jarisch-Herxheimer may occur. It is not recommended in those with a history of penicillin allergy or<unk>  allergy. Use during pregnancy and breastfeeding is relatively safe.<unk>  is in the penicillin and beta lactam family of medications. It works via benzylpenicillin and results in bacterial death.<unk>  makes the combination long acting.<unk>  was introduced for medical use in 1948. It is on the World Health Organization's List of Essential Medicines.
Procaine benzylpenicillin
Oxytetracycline
Phenoxymethylpenicillin
Extended-spectrum penicillin
Benzylpenicillin
Benzathine benzylpenicillin
Doxycycline
Penicillin