Various types of
steroid-containing implants were used in the treatment of
benign prostatic hypertrophy, congestive
prostatitis, and
hypogonadism. 2
Silastic capsules, each containing 22-23 mg of
ethinyl estradiol, were inserted subcutaneously in 5 men with
benign prostatic hypertrophy. A decline in
testosterone levels to less than 1 ng/ml was attained within 6 months following insertion. 6-8
Silastic capsules containing 21-23 mg each of
testosterone were implanted in 15
men: 2 castrates and 13 hypogonadals.
Testosterone levels increased initially, reaching the highest level at 3 months. Thereafter, the
testosterone concentrations declined but remained slightly above pretreatment levels at 9 months. In a group of 9 subjects, 7 men with
hypogonadism and 2 women with
hypernephroma were treated with 2 rods, each containing approximately 200 mg
testosterone propionate.
Testosterone concentrations showed initial rises but did not remain elevated. 12 male subjects, 6 with congestive prostatis and 6 with
benign prostatic hypertrophy, were treated with a combination of 3
levonorgestrel rods and 3
estrone rods. Each rod contained 40 mg of
steroid. This regimen had a
therapeutic effect but was only partially successful in inhibiting spermatogenesis.