Methyltestosterone is 17-alpha-methyl altered so that the hormone can survive its first pass through the liver, and be effective as an oral agent, rather than just being destroyed by the liver. Unfortunately, this alteration also puts stress on the liver and contributes to the hepatoxicity (liver toxicity) of this compound, which is quite profound with Methyltestosterone. Luckily, Methyltestosterone doesn´t have adverse effects on cholesterol and, and can even lower plasma viscosity. And, since this is just testosterone, altered to be orally available (some users actually let the tablet dissolve under their tongue for increased absorbtion), we can expect many of the same results and side effects that we would with any other testosterone form... -- more about METHYLTESTOSTERONE --