NK3 receptor antagonists are used to treat hot flashes associated with menopause. These medications work by blocking the neurokinin-3 receptor, which is involved in the brain's regulation of body temperature and plays a role in the pathways that lead to hot flashes during menopause. NK3 receptor antagonists are typically available in oral form. An example is fezolinetant (Veozah). You can take these medications as prescribed to help manage your symptoms effectively.