Originally Posted by mwlmd
Penicillin? This is 2012. That won't kill anything these days.
Mayo Clinic disagrees.
Treatments and drugs
By Mayo Clinic staff
When diagnosed and treated in its early stages, syphilis is easy to cure. The preferred treatment at all stages is penicillin, an antibiotic medication that can kill the organism that causes syphilis. If you're allergic to penicillin, your doctor will suggest another antibiotic.
A single injection of penicillin can stop the disease from progressing if you've been infected for less than a year. If you've had syphilis for longer than a year, you may need additional doses.
Better Pen than Valtrex.