Jingo is the trade name, generic name for sildenafil citrate tablets, the drug will work whether or not to take and whether or not to eat a meal, so there is no so-called after eating a meal to take the drug does not work. Sildenafil citrate is a kind of medication used to treat erectile dysfunction. Taking the medication as needed before sexual intercourse can make one’s erection occur smoothly under the condition of sexual stimulation and complete sexual intercourse normally. The action of the drug is not affected by eating or not eating, and the recommended dose of the drug will not work only in the absence of sexual stimulation. It should be noted, however, that if the meal eaten contains more fat, it is possible to delay the time when the drug works. The main common adverse effects of sildenafil citrate tablets are headache, flushing, dizziness, nasal congestion, indigestion, and visual abnormalities. The drug is forbidden to be combined with nitrates, and it is contraindicated for women, those who are allergic to the product, children, and those whose recent cardiovascular status makes them unfit for sexual intercourse. Individuals should not abuse sildenafil citrate tablets, and should follow the doctor’s instructions to standardize the use of medication.