Side effects of metenolone enanthate include symptoms of masculinization like acne , increased hair growth , voice changes , and increased sexual desire .  The drug is a synthetic androgen and anabolic steroid and hence is an agonist of the androgen receptor (AR), the biological target of androgens like testosterone and dihydrotestosterone (DHT).   It has moderate anabolic effects and weak androgenic effects, as well as no estrogenic effects or risk of liver damage .   Metenolone enanthate is a metenolone ester and a long-lasting prodrug of metenolone in the body. 
To strengthen the anabolic properties of testosterone, more than 100 synthetic steroid derivatives have been described for human purposes. The anabolic effect promotes protein synthesis, muscle growth and erythropoiesis. In clinical practice, substances with anabolic effect are needed to overcome various catabolic states. However, none of these compounds are devoid of androgenicity. Androgenic and anabolic properties of anabolic steroids cannot be totally separated. Therefore, it is more appropriate to use the term anabolic androgenic steroids (AAS).
Exceeding dosage may be mental and physical stimulation, followed by insomnia and aggressive behavior. It is not excluded and the effect on the liver in the form of increased liver enzymes that can occur with repeated use of excessive doses. If you make a course right to control your body under the supervision of a specialized physician and not neglect all the recommendations, side effects can be avoided. Primobolan has toxic effects on the liver, but it is weak. It shall be noted, that women often find Nibal acceptable to use to improve physique. The compound belongs to the class of anabolic steroids, but androgenic side effects of Nibal are still possible. This may be oily skin, acne, alopecia, increased facial/body hair growth, etc. High doses are likely to cause them.