Jingo is the trade name and the generic name is Sildenafil Citrate Tablets, which is best taken about 1 hour before the start of sexual intercourse. Sildenafil citrate tablets can increase the blood flow to the cavernous body of the penis and improve erectile function, and are mainly used in the treatment of erectile dysfunction in men in clinical practice. The peak blood concentration of this product is reached about 1 hour after taking it, so the best effect is produced when it is taken about 1 hour before sexual intercourse. Adverse reactions to this product include flushing, headache, indigestion, nasal congestion, dizziness, rash, and visual abnormalities. It is contraindicated for those who are allergic to this product and should not be combined with nitrates as it may cause hypotension. It is recommended to consult a physician and take the medication according to the doctor’s instructions, and should not take the medication blindly.