味辛,性温,入足少阴肾、足厥阴肝经。驱寒泻湿,秘精壮阳,温肾荣筋,治阳痿精滑、膝挛腰痛,心腹疼痛、胸膈痰水,续筋接骨,化癖消癥,排痈疽脓血,起风痹瘫痪,治霍乱转筋
稍生服之,则麻木昏晕。天雄即附子长大者,制法与附子同,煨,去皮脐,切片,隔纸焙干