Serum testosterone concentrations during the course of chronic administration of three different testosterone preparations to hypogonadal men

(A) During the 14 days following the injection of 200 mg of testosterone enanthate.
(B) During the 24 hours after application of one or two testosterone patches that deliver approximately 5 mg of testosterone each.
(C) During the 24 hours after application of a testosterone gel containing 50 or 100 mg of testosterone.