Evista is an anti-estrogen which belongs to the family of drugs known as Aromatase inhibitors. Due to its anti-estrogenic properties, Evista is used for Post Cycle Therapy after a steroid cycle. Evista achieves its effects by blocking estrogen receptors in the body. This is necessary in order to prevent the popular undesirable estrogenic side effects (acne, gynecomastia, alopecia, female type fat deposition etc.). Apart from the anti-estrogenic action, Evista helps to restore the levels of testosterone to optimum conditions and reduce cholesterol levels.
The only downside to Evista is that it elevates globulin levels in the body. Globulin combines with testosterone negatively affecting weight gain. The drug has also been found to inhibit insulin-like growth factor causing visual impairments if taken for too long.