Question: what is the best antibiotic to treat stds?
Answer: If you have this STD, your doctor will likely prescribe two antibiotics: ceftriaxone and either azithromycin (Zithromax, Zmax) or doxycycline (Monodox, Vibramycin). Ceftriaxone is given as a one-time injection -- usually a dose of 250 milligrams (mg).