Overall, enanthate is an excellent bulking drugs and should form the foundation of any juicer's mass aresenal. Testosterone is also very friendly on the liver and kidneys and has very low toxicity. Just keep in mind that enanthate, and any testosterone, will greatly and rapidly shut off your natural production. This will usually occur inside of two weeks. You will notice the 'boys' shrinking within this time. This is also dose dependent, but even a low 200mg dose of enanthate will shut off your natural testosterone within four to five weeks. Enanthate is a popular birth control agent given to many males all over the world, just not in the US.