Metro is a trade name, and the generic name of the drug is Ginseng and Antler Whip Pills, which is used to tonify the kidney, strengthen the yang (the effect of tonifying the kidney yang), and strengthen the essence and marrow. Ginseng Antler Whip Pill is a kind of Chinese patent medicine, the main ingredients include Cuscuta, Antler, Bacopa Monnieri, Red Ginseng, Boneset, Sichuan Cow’s Knee, etc., which has the function of tonifying the kidneys and strengthening the kidney, strengthening the essence and increasing the marrow, and is mostly used for the treatment of premature ejaculation, impotence, loss of libido, spermatorrhea, weakness of qi, kidney deficiency, and renal disease. It should be noted that pregnant women, allergic to any component of the drug is prohibited to take ginseng antler whip pill, the adverse effects of the drug is not clear, the patient to take ginseng antler whip pill during any discomfort, persistent non-relief or more serious symptoms, should be timely medical treatment. Patients should follow the doctor’s instructions to take ginseng antler whip pill, avoid self-medication, so as to avoid adverse effects.