A 22-year-old man presents to the clinic with 1 week of uret…

A 22-year-old man presents to the clinic with 1 week of urethral discharge, dysuria, and increased urinary frequency. He has a new male partner with whom he has unprotected insertive anal sex. On examination, proximal-to-distal “milking” of the urethra expresses mucopurulent discharge. Prostate exam is normal, and there is no pain, swelling, or tenderness of the epididymis. You order a urinalysis, urine culture, and urine nucleic acid amplification test (NAAT) for Neisseria gonorrhoeae and Chlamydia trachomatis. Point-of-care (POC) diagnostic tools are not available in your clinic. While you wait for test results, which of the following antibiotics should you initiate for this patient?