Testosterone is available in pills, lozenges, patches, gels and injections. Although there are advantages and disadvantages to each, most clinicians will not prescribe pills, which can increase the risk of liver toxicity and lower levels of HDL (the "good" cholesterol).
A slightly "milder" alternative to testosterone is DHEA (dehydroepiandrosterone). This steroid hormone is a precursor of testosterone, meaning that the body converts DHEA into testosterone. Supplementary DHEA, which is available in pill or cream form, increases testosterone levels by one-and-a-half to two times. So it's not surprising that DHEA provides many of the same therapeutic benefits, including increased sexual interest and enhanced physical and mental satisfaction.