There is no such thing as how long to take Silkworm Moth Gong Tonic Tablet before it works, the time to take this medicine is mainly determined by the patient’s condition, so you can’t make a generalization. Silkworm Moth Tonic Tablet has the effect of tonifying the kidney, strengthening the yang (tonifying the kidney yang) and nourishing the blood. Silkworm Moth Gong Tonic Tablet is made of male silkworm moth, ginseng, radix Rehmanniae Praeparata, Rhizoma Atractylodis Macrocephalae, Radix Angelicae Sinensis, Fructus Lycii and other effects. It has the effect of tonifying the kidney and strengthening yang, nourishing blood and filling essence. It is used for kidney yang deficiency and loss, impotence and premature ejaculation, uterine cold and infertility, and sexual function decline. Avoid eating cold and greasy food during the period of taking the medicine; be cautious of impotence and premature ejaculation caused by dampness and heat; be cautious of infertility caused by dampness and phlegm internal obstruction and blockage of the uterus by blood stasis; avoid intercourse during the period of treating impotence and premature ejaculation. Before taking this medicine, you need to be guided by a doctor to identify the evidence, you can not take the medicine on your own, so as not to cause adverse effects on the body.