必利勁 is the trade name, generic name of Dapoxetine; Jingo is the trade name, generic name of Sildenafil Citrate; when both premature ejaculation and erectile dysfunction exist, they can be taken together, but should be taken together under the guidance of the doctor. Sildenafil citrate is a drug for the treatment of erectile dysfunction, which is generally suitable for people with erectile dysfunction, while Dapoxetine is used for the treatment of premature ejaculation; the indications for the two are different and they can be used together. However, due to the possibility of reduced erection endurance, this product should be used in conjunction with sildenafil citrate as prescribed by a physician. Meanwhile, Dapoxetine is contraindicated in people who are allergic to Dapoxetine, people with severe pathologic heart disease, people with a history of mania and a history of major depression; the drug is also strictly prohibited to be used with monoamine oxidase inhibitors, thioridazine, serotonin reuptake inhibitors, tricyclic antidepressants and other medications; at the same time, the use of the drug is strictly prohibited in people with moderate or severe liver damage. Sildenafil is contraindicated in people who are allergic to sildenafil and those who are using or have recently used nitrates and guanylate cyclase stimulators. At the same time, both types of drugs are prescription drugs, and you need to consult a doctor for use.