E20 tadalafil dapoxetine belongs to a class of selective serotonin reuptake inhibitors (SSRIs). This short-acting inhibitor is used to treat premature ejaculation in men. In case you notice any side effects not listed above, contact your doctor or pharmacist. Kamagra Oral Jelly is contraindicated in patients taking another medicine to treat impotence or using a nitrate drug for chest pain or heart problems. This medicine should not be taken by women and children as well as in patients with a known hypersensitivity to any component of the tablet.