Important Safety Information

Do not take Sildenafil (sildenafil citrate) or Tadalafil if you take medication containing nitrates or guanylate cyclase stimulators for pulmonary hypertension as this could cause an unsafe drop in blood pressure or if you are allergic to sildenafil, tadalafil or any ingredients in either medication. Discuss your health with your doctor to ensure that you are healthy enough for sex. If you experience chest pain, dizziness, or nausea during sex, seek immediate medical help. Sildenafil and Tadalafil can cause serious side effects. Read more.