Injectable steroids are injected into muscle tissue, not into the veins. They are slowly released from the muscles into the rest of the body, and may be detectable for months after last use. Injectable steroids can be oil-based or water-based. Injectable anabolic steroids which are oil-based have longer half-life than water-based steroids. Both steroid types have much longer half-lives than oral anabolic steroids. And this is proving to be a drawback for injectables as they have high probability of being detected in drug screening since their clearance times tend to be longer than orals. Athletes resolve this problem by using injectable testosterone early in the cycle then switch to orals when approaching the end of the cycle and drug testing is imminent.
Acne can develop or worsen with the use of progestinonly contraceptives. A questionnaire-based study of 161 women who used the levonorgestrel-releasing intrauterine system (Mirena) for dysfunctional uterine bleeding found that 22 percent discontinued use secondary to progestin-associated effects (., acne, oily skin, hirsutism, bloating, headaches, weight gain, depression, breast tenderness, decreased libido). 3 A retrospective study of Implanon users found that 11 percent had acne after insertion. 2 If acne worsens with a progestin-only contraceptive, a combination method can be tried if the patient is medically eligible.
Testosterone, an essential precursor of estrogen in women, is made in the ovaries and adrenal glands. There is a steady decline in testosterone levels from the 20s through menopause. With surgical menopause, the level of testosterone drops precipitously. No clear lower limit of testosterone has been established; however 15 ng per dL ( nmol per L) commonly is used. One study 38 found that women with 0 to 10 ng per dL (0 to nmol per L) had markedly decreased sexual desire in all situations and absent or markedly decreased orgasms. Because of studies like this, supplemented with anecdotal evidence, many women have been started on testosterone therapy.