No, Viagra (sildenafil) and Sildalist 120 medications do not typically keep you hard after ejaculation. The primary mechanism of action of sildenafil is to increase blood flow to the penis, facilitating the ability to achieve and maintain an erection. It does not directly affect the ejaculation process or the refractory period, which is the time it takes for a man to recover before being able to achieve another erection. After ejaculation, the body goes through a refractory period during which it is less responsive to sexual stimulation. Viagra does not alter this natural physiological response. Once the effects of the medication wear off, the erection usually subsides, and the body returns to its normal state. It's important to use medications like Viagra as prescribed by a healthcare professional and to have realistic expectations about their effects. If you have concerns or questions about how Viagra may interact with your physiology, it's advisable to discuss them with your healthcare provider for personalized guidance.