Taking Sildenafil Citrate Tablets after intoxication may lead to unstable blood pressure. Drunkenness indicates that the concentration of alcohol in human plasma will rise, and then taking sildenafil citrate tablets may enhance the effect of alcohol in lowering blood pressure. It leads to an increase in blood pressure drop, so try not to take Sildenafil Citrate Tablets after drinking alcohol. Common adverse reactions to Sildenafil Citrate Tablets mainly include headache, flushing and nausea. More serious may occur facial edema, fatigue, chills, shock, allergic reactions, etc. When serious adverse reactions occur, you need to immediately seek medical treatment to relieve the corresponding symptoms. It should be noted that patients taking any form of nitrate, as well as guanylate cyclase agonists, are prohibited from taking the drug at the same time. It is also contraindicated for people who are allergic to any of the components of the drug, as well as for children. The drug should be taken in accordance with medical advice.