1. Anti-estrogenic effects: Nolvadex is a selective estrogen receptor modulator (SERM) that blocks the action of estrogen in certain tissues. It is commonly used as adjuvant therapy in breast cancer to prevent the recurrence of estrogen receptor-positive breast cancer by blocking estrogen binding to breast cancer cells.
2. Treatment of gynecomastia: Nolvadex is sometimes used off-label in males with gynecomastia, a condition characterized by enlarged breasts. It may help reduce breast size by blocking estrogen receptors in breast tissue.

Cons:

1. Potential for side effects: Like any medication, Nolvadex has the potential for side effects. Common side effects may include hot flashes, nausea, vomiting, menstrual irregularities, and mood changes. Less common but more serious side effects may include blood clots, endometrial cancer, and cataracts.
2. Hormonal effects: Nolvadex has hormonal effects as a SERM, and it can impact the hormonal balance in the body. This may lead to changes in menstrual cycles, hormone levels, and potential mood changes. It’s important to discuss any hormonal changes with your healthcare provider if you are taking Nolvadex.