Jingo is the trade name, generic name is sildenafil citrate tablets, sildenafil citrate tablets should generally be taken 1 hour in advance, sildenafil citrate tablets have adverse reactions and contraindications, should be guided by a doctor to use the drug. Sildenafil citrate tablets are mainly used for the treatment of erectile dysfunction, generally take sildenafil citrate tablets 1 hour before the sexual activity, 1 hour after the sildenafil citrate tablets efficacy can reach its peak, it is recommended that sildenafil citrate tablets be taken 1 hour before the sexual activity. Taking Sildenafil Citrate Tablets may cause adverse reactions such as flushing, muscle aches, headache, allergy, nausea, diarrhea, dizziness, etc. Women, children, people who are allergic to the ingredients of Sildenafil Citrate Tablets, and patients taking any dosage form of nitrate need to disable the drug. It is recommended to take sildenafil citrate tablets in accordance with medical advice, not self-medication.