Male erectile dysfunction is treated with Fildena double 200 mg. PDE 5 inhibitors are a class of medications that includes sildenafil. These medications stop phosphodiesterase type-5 from functioning too quickly. One of the regions where this enzyme functions is the penis. When you remember to take the missed Fildena dosage, do so. If the next scheduled dose is almost here, it can be omitted. This is relevant for fast-acting disorders such as pulmonary hypertension. Because of the cardiovascular risk factors, men are recommended against having sex. It is advisable to use caution when using sildenafil if your blood pressure is high or low. Keep medications out of direct sunlight and heat at room temperature.