Jingo and Viagra are both trade names, the generic name is sildenafil citrate tablets, the specific efficacy varies from person to person, and it is impossible to judge whose medication is more effective. Sildenafil citrate tablets, as a common treatment for erectile dysfunction, exists in more than one manufacturer. The main ingredient of the drug produced by the above two different manufacturers is sildenafil citrate tablets, and the indications for the use of the drug, contraindications, adverse reactions, pharmacological effects, etc. are basically similar. Although the theory should produce the same effect, but the user has individual differences, resulting in the same person to use two different drugs, the final effect is not the same, there is the use of the former effect is good, there is the use of the latter effect is good, the specific different from person to person. In addition, sildenafil citrate tablets contraindications include patients taking nitrate drugs or guanylate cyclase agonists (such as leucovorin) and patients allergic to this product, and for patients with cardiovascular disease should be cautious to use the drug. Mild to moderate headache, back pain, myalgia, nausea, visual disturbances, dyspepsia, flushing, nasal congestion, and dizziness are common adverse reactions. And the specific use of the drug should be under the guidance of a specialist, not unauthorized use of drugs.