Fildena 100 is not prescribed for a longer period. Generally, men are suggested to take Fildena in doses of 25 or 50mg of the tablet. But the dosage depends on the body type. It usually takes 25 to 30 minutes for this drug to stimulate the effects of the drug in the body. The doctor alone can increase or decrease the dose of this medication as needed. Patients do not take Fildena 50 or 25mg regularly. As the effect of the drug lasts more than a day. If anyone takes an overdose of this Fildena 150, they should contact a doctor as soon as possible. If you are having these problems like nasal congestion, indigestion, dizziness, headache, blurred vision, instead of wasting your time, you should contact a doctor immediately.