Tadarise 5 mg (tadalafil 5 mg) for erectile dysfunction, it helps because tadalafil increases blood flow to the ***** when you are *****ly aroused. ***** stimulation releases nitric oxide, which increases cGMP, causing the penile muscles to relax and blood flow to increase. Tadalafil blocks PDE-5, the enzyme that breaks down cGMP, so the erection response is easier to achieve and maintain. 5 mg is commonly used as a once-daily dose for ED. The lower 2.5 mg daily dose can be increased to 5 mg depending on effectiveness and tolerability. It doesn't automatically cause an erection—***** stimulation is still necessary. Because you're asking about several tadalafil products, an important distinction is that 5 mg daily is quite different from taking 20 mg on demand. If you tell me how often you have sex (e.g., once a week vs. several times a week), I can explain which approach generally makes more sense.