Jingo is the trade name and the generic name is sildenafil citrate tablets. After taking sildenafil citrate tablets, you can usually resume normal exercise after 4 hours in most cases, and if the erection takes longer, you should postpone the exercise appropriately. Sildenafil citrate tablets are used to treat erectile dysfunction. Under normal circumstances, the duration of the drug’s effect is 4 to 6 hours, and most men can metabolize it in about 4 hours. Therefore, normal exercise can be resumed after 4 hours. However, some men taking the drug effect duration is relatively long, erection time will also be extended, need to postpone exercise time, until the effect of the drug completely disappeared. The drug is prohibited in combination with nitrate drugs, it is contraindicated in women, people who are allergic to the product, children, people whose recent cardiovascular state does not allow them to have sex. The main common adverse reactions to sildenafil citrate tablets are headache, flushing, dizziness, nasal congestion, indigestion, visual abnormalities. The use of drugs should be carried out under the guidance of a doctor, the emergence of adverse drug reactions timely medical treatment, to avoid the development of the disease.