The penicillin used by syphilis patients is usually penicillin sodium for injection, and the price of a shot is around 1~10 dollars, and the actual price may vary due to the different specifications of the shot, regions, manufacturers, etc. Penicillin sodium for injection is suitable for a variety of infections caused by sensitive bacteria, and can be used as the drug of choice for syphilis. Adverse reactions to penicillin are allergies, including hives and other types of rashes, anaphylaxis is occasionally seen. It should be noted that a history of allergy to penicillins is contraindicated. Penicillin skin test is needed during the use of the drug, and if the result is positive, it is also not allowed to use, and must be applied after the user is desensitized. For syphilis patients, you need to cooperate with the doctor to standardize the drug treatment. If you want to know the actual price of penicillin sodium for injection, you need to consult the local regular hospital in detail.