In general, levocarnitine is taken for a longer period of time for the treatment of weak spermatozoa, usually 3 months. Levocarnitine, also known as levocarnitine, is mainly used clinically for patients with obesity, uremia or long-term dialysis. It can also provide nutrients for male sperm, promote sperm production, improve sperm viability and reduce sperm malformation, and has obvious effects on oligospermia and weak spermatozoa. Since the cycle of sperm production is 3-4 months, patients with oligospermia and weak spermatozoa need to take this drug for a longer period of time, at least 3 months, and can also be used together with zinc gluconate oral solution and coenzyme Q10 capsules for better results. During the medication period, patients need to make adjustments to their lifestyle habits at the same time, avoid staying up late and being sedentary, quit smoking, quit drinking, avoid spicy and stimulating foods, drink more water and maintain a good state of mind.