Suhagra is a medication that contains the active ingredient sildenafil, which is used to treat erectile dysfunction (ED). Both immediate-release and extended-release formulations of medications can have systemic effects on the body, including potential effects on kidney function. However, the risk of kidney-related side effects is generally associated more with the active ingredient itself rather than the formulation. Sildenafil, the active ingredient in Suhagra, is primarily metabolized in the liver and excreted from the body primarily through the feces and to a lesser extent through the kidneys. While kidney-related side effects with sildenafil are rare, they may include changes in kidney function, such as acute kidney injury or abnormal kidney function tests. It's essential for individuals taking Suhagra or any other medication containing sildenafil to be aware of potential side effects and to consult with a healthcare professional if they experience any symptoms suggestive of kidney problems, such as changes in urine output, swelling, or changes in laboratory test results. Ultimately, the choice between immediate-release and extended-release formulations of Suhagra would typically be based on factors such as convenience, dosing frequency, and individual preference rather than differences in the risk of kidney-related side effects. However, if you have concerns about kidney function or potential side effects, it's essential to discuss them with a healthcare professional for personalized advice and guidance.