Selenase is a pharmaceutical preparation that contains selenium, an essential trace element that plays a crucial role in various metabolic processes within the body. Selenium is integral to the function of several enzymes, including those involved in antioxidant defense systems and thyroid hormone metabolism. As a supplement, Selenase is often prescribed to address selenium deficiency, which can occur due to inadequate dietary intake, certain medical conditions, or in areas where the soil is low in selenium, leading to lower levels in crops. By supplementing with Selenase, individuals can help support their immune system, thyroid function, and overall health. It is important for users to follow their healthcare provider's instructions when taking Selenase to ensure proper dosage and to avoid potential side effects associated with excessive selenium intake.