Low sexual ability generally may be erectile dysfunction, premature ejaculation, etc., the condition is different, the medication is different, erectile dysfunction can use sildenafil, tadalafil, etc., and premature ejaculation can be under the guidance of the doctor, through the use of lidocaine, dapoxetine and other drugs for treatment. 1. Erectile dysfunction: when patients are affected by trauma, endocrine system disease, neuropathy, psychology, penile disease and other factors, it will lead to erectile dysfunction, which can be treated under the guidance of the doctor through the use of sildenafil, vardenafil, tadalafil and other drugs. 2. Premature ejaculation: If the patients have extreme level meter sing, brain chemical substance abnormality, inflammation and infection of prostate or urethra, which cause the patients to have premature ejaculation, they can be treated by using drugs such as lidocaine, dapoxetine, paroxetine under the guidance of doctors. It is recommended that patients under the guidance of the doctor, strictly follow the instructions of the doctor to use drugs, not blindly use drugs or unauthorized changes in drug dosage, so as not to cause adverse effects on the body, triggering the emergence of other diseases.