Am Fam Physician. 2000;61(8):2344
The article “Update on the Prevention and Treatment of Sexually Transmitted Diseases” (January 15, 2000, page 379) contained two incorrect trade names in the first paragraph of the right-hand column on page 385. The correct trade name for procaine penicillin G is Wycillen; the correct trade name for aqueous crystalline penicillin G is Pfizerpen. (Bicillin L-A is penicillin G benzathine; Bicillin C-R is a combination of penicillin G benzathine and penicillin G procaine.)