<p>It’s best to take Fildena 200mg once a day, until your doctor advises you otherwise. Taking this medicine more than once per day may cause an overdose.</p><p>The effects of Fildena start to take effect 30 to 60 minutes after taking the drug. This medicine is usually effective for a few hours, but it can last longer depending on your health and the amount of the medicine you are taking.</p><p>While taking this medicine, be sure to eat a healthy diet and drink plenty of water. This will help to increase the effectiveness of the drug and reduce side effects.</p>