Jingo is the trade name, generic name is sildenafil citrate, the dose is maximum 100mg each time, not to take 200mg at a time, should be used under the guidance of a doctor. Sildenafil citrate is one of the most common medications used clinically to treat erectile dysfunction. The general recommended initial dose of this medication is 50mg/dose, taken up to once a day, as needed about an hour before sexual activity. Based on an individual’s potency and tolerance, this can be adjusted to 25mg/dose or increased to a maximum of 100mg/dose, and overdosing by taking 200mg at a time is not recommended, as it may increase the chances of adverse reactions. Sildenafil citrate should not be combined with nitrates such as isosorbide nitrate, guanylate cyclase agonists such as lioresiguanide, or used in people with a history of hypersensitivity to this drug. It should be used with caution in patients with cardiovascular disease due to the potential risky cardiac effects of sexual intercourse. Sildenafil citrate may cause adverse reactions such as headache, flushing, dyspepsia, abnormal vision, and back pain during use and should be used under medical supervision. Do not overdose. If there is any discomfort, you should seek medical advice promptly.