Malegra Pro works by improving blood flow to the penis, which helps men with ED achieve an erection during sexual activity. Once taken, it generally begins working within 30 to 60 minutes and can last for 4 to 6 hours. This means Malegra Pro can enhance your performance during sexual activity, but it does not keep you "strong" or maintain an erection indefinitely. After the effects of the medication wear off, you will return to your baseline erectile function, which may vary depending on whether you have ED or not. Malegra Pro does not provide a permanent solution to ED, but it helps during the period when it is active in your body.