The statement “How long is the best time to take the pill” is not scientific. Generally, it can be taken for 7~14 days, according to the effect and then the doctor will decide whether to continue to take. Shujin Pill is composed of strychnine powder, hyssop, schizandra, duhuo, fengfeng, salted eucommia, qiangwu, licorice, papaya, hyssop, maple bark, millennium health, cinnamon stick, vinegar myrrh, vinegar frankincense, ephedra, and so on. It can relieve tendons and activate blood circulation, dispel wind and remove dampness (get rid of wind and dampness in the body). Shu Tendon Pill can treat numbness of limbs, difficulty in walking, pain in tendons and bones after wind-cold attack, dampness stagnation and internal obstruction of blood stasis. Pregnant women are not allowed to take it, athletes need to take it with caution, and the adverse effects are not exact. Since Shujinwan contains strychnine, there is no optimal time to take it, but it is recommended not to take it in large quantities for a long time. Take it for 7~14 days and decide whether to continue taking it under the guidance of your doctor. Taking Shujin Pills needs the guidance of a doctor, do not use the medicine blindly on your own.