Letrozole / Femara

Letrozole also known by its trade name Femara is an aromatase inhibitor that is commonly used by bodybuilders to control the estrogenic side effects of anabolic steroid use. As an AI, letrozole works by blocking the aromatase enzyme, which is responsible for converting testosterone into estrogen. This leads to a reduction in estrogen levels, which can help prevent side effects such as gynecomastia, water retention, and fat accumulation.

Letrozole is known for being a potent AI, with some studies suggesting that it is more effective than other commonly used AIs such as anastrozole. However, it is important to note that letrozole can be quite strong and should be used with caution.

When it comes to dosing, the recommended daily dose of letrozole for bodybuilders is typically around 0.125mg-1mg per day. This can be adjusted based on individual needs and the specific steroids being used. It is important to start with a lower dose and gradually increase it as needed, as letrozole can be quite potent and can lead to side effects if taken in excessive amounts.