What is the most famous antibiotic?

Answer 1

Some of the commonly prescribed antibiotics include: * Penicillins are the cheapest, safest, and most effective antibacterial treatments available (although patients can occasionally develop an allergic reaction to them). Penicillin G and V remain the drugs of choice for treating many bacterial infections. (Penicillin V is not destroyed by stomach acid, so it is a better drug for oral prescriptions.) Methicillin was the first penicillin to have activity against staphylococcus that were resistant to penicillin G. * Ampicillin and amoxycillin have a wider application than earlier penicillins, being effective against Escherichia coli (urinary tract infections), Haemophilus influenzae (ear infections and meningitis) and Salmonella typhi (responsible for typhoid fever). * Carbenicillin was the first penicillin synthesized to possess useful activity against Pseudomonas aeruginosa (surface bacteria causing hospital infections). * The injectable forms of this drug are generally broad-spectrum, bactericidal agents that are restricted to hospital use for the treatment of serious infections. * Tetracyclines are broad-spectrum antibiotics that have been used to treat a wide range of infections. They can be taken orally, and prevent regrowth of bacteria. They are used in the treatment of gonorrhea, and in urinary tract infections (Escherichia coli). They can cause teeth stains in children, so they are not usually prescribed for patients under 12 years of age. * Notably Erythromycin, a very safe and effective antibiotic used for respiratory tract infections caused by streptococci or mycoplama. It is also used for patients allergic to penicillin. It can penetrate human cells and is used to treat "Legionnaires' disease", a serious type of pneumonia. (see related link)
Cipofloxacine, Cephradine, Amoxiciline and Augmentine are more common.

Answer 2

Penicillin