Viagra and time-delay pills can be used at the same time, but it is not recommended to use them for a long time to avoid forming dependence. Viagra is mainly used for sexual dysfunction and abnormal penile erection. It is generally possible to take Viagra before sexual intercourse, and the use of time-delay pills can improve the symptoms of abnormal erection and premature ejaculation in men. However, male patients are generally advised to stop taking the drug after about two weeks of use. In addition, in general, when men have sexual dysfunction, it is recommended to go to the local regular hospital to improve the relevant examination, clear cause after the doctor’s guidance for treatment and medication.