The active ingredient in Fildena super active (sildenafil citrate) improves erectile function in men with ED. It works by relaxing the muscles in the penis and increasing blood flow to them, thereby allowing them to achieve an erection. This medication is not an aphrodisiac and does not protect you from sexually transmitted diseases, so it should be used only with caution. It usually takes 30 minutes before the effect of Fildena begins to show, and it lasts for a period of 4-5 hours. However, it can take longer to work for some people. If you are taking another medicine, check with your doctor to see if it may interact with Fildena. You should also inform your doctor about any dietary supplements or foods you may be taking. Your dosage of Fildena 150 mg should be carefully monitored, as it can cause negative side effects if you overdose on it. Overdosage can lead to dangerous symptoms like severe dizziness, nausea, a loss of strength, and drowsiness. In addition, you should be aware that this drug can cause an allergic reaction. This is a rare side effect, but it can happen to some people. If you experience any of these signs, stop using the medication and seek medical help immediately. It is also important to note that the medication can have an impact on your kidneys. If you suffer from kidney disease, talk to your doctor about whether this medication is safe for you.