In males with delayed puberty: Various dosage regimens have been used; some call for lower dosages initially with gradual increases as puberty progresses, with or without a decrease to maintenance levels. Other regimens call for higher dosage to induce pubertal changes and lower dosage for maintenance after puberty. The chronological and skeletal ages must be taken into consideration, both in determining the initial dose and in adjusting the dose. Dosage is within the range of 50 to 200 mg every 2 to 4 weeks for a limited duration, for example, 4 to 6 months. X-rays should be taken at appropriate intervals to determine the amount of bone maturation and skeletal development (see INDICATIONS AND USAGE and WARNINGS ).
In February 2009, Sports Illustrated reported that Alex Rodriguez tested positive for two AAS, testosterone and metenolone enanthate, while playing for the Texas Rangers in 2003. He claims to have purchased them over the counter, in the Dominican Republic . However, " boli ," as he referred to it, is an illegal substance in the Dominican Republic.   In an interview with ESPN two days after the SI revelations, Rodriguez admitted to using banned substances from 2001 to 2003, citing "an enormous amount of pressure to perform," but said he had not since then used banned performance-enhancing substances.   He said he did not know the name(s) of the particular substance(s) he was using, and would not specify whether he took them in injectable form. 
Dosage and duration of therapy with Delatestryl depends on the age, sex, diagnosis, patient's response to treatment, and appearance of adverse effects. Delatestryl may interact with blood thinners, or corticosteroids. Tell your doctor all medications and supplements you use. Delatestryl must not be used during pregnancy. It may harm a fetus. It is recommended that women use 2 forms of birth control (., condoms and birth control pills) while using this medication; consult your doctor. It is unknown if this drug passes into breast milk. It may affect milk production and it may harm a nursing infant. Breastfeeding while using this drug is not recommended.