Anabolic/Androgenic Steroids (AAS) also are manufactured in an injectable form. Most are used as deep intra muscular injections containing various oils and, in a few cases, sterile water. The active ingredient is suspended in the oil or water solution.
Injectable AAS have 2 distinct advantages over their oral cousins. First, due to structure and the method in which they are administered they have much longer active-lives (the period in which the AAS remains active start to finish). Injectables usually range in active-life from 1 day to 4 weeks, depending on their chemical structure and in which form the drug is manufactured in. Orals usually have an active-life of 4-16 hours depending on structure and alterations in its molecule. Second, injectables avoid first pass deactivation in the small intestines and liver, but are eventually deactivated by the liver as well. So an oral dosage is based upon what makes it past the stomach, small intestines, and liver. And an injected dosage is what is drawn into a syringe and injected. Since few injectable AAS are methylated or 17-alfa-alkylated, it should be noted that they are much easier on the liver even in much higher dosages.
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