Premature ejaculation medication Dapoxetine is usually taken as a 30mg dose about 1 to 3 hours before sex. The product should be taken by mouth, the tablet should be swallowed whole, and it is recommended that the product be delivered using at least a full glass of water. The recommended initial dose for adult males (18 to 64 years of age) is 30mg, which should be taken approximately 1 to 3 hours before sexual intercourse, and the dosage may be increased to the maximum recommended dose of 60mg if the results of taking 30mg are unsatisfactory and the side effects are within acceptable limits. Dapoxetine can be used to treat eligible men between the ages of 18 and 64 with premature ejaculation, as well as to treat poor ejaculatory control. Adverse reactions include headache, nausea, diarrhea, insomnia, and fatigue, and it should be contraindicated in patients with significant pathological conditions of the heart, in patients with moderate and severe hepatic impairment, and in patients who are allergic to the product. Dapoxetine is a prescription drug and patients should use it under the supervision of a doctor.