Zudena 100 mg contains udenafil, a PDE5 inhibitor used to treat erectile dysfunction. For men with chronic kidney disease (CKD), it should not be considered automatically safe without medical evaluation.

Research indicates that kidney impairment can increase the amount of udenafil in the bloodstream. After a Zudena 100 mg dose, drug exposure was higher in people with mild, moderate, and severe renal impairment compared with individuals with normal kidney function. Researchers concluded that dose adjustment may be appropriate in moderate or severe renal impairment.

The product information for Zydena (udenafil) states that it is not recommended for patients with moderate to severe renal impairment, because exposure can increase and clinical data are limited. Safety and effectiveness have not been adequately established in kidney failure.

Therefore, men with CKD should speak with their doctor before taking Zudena 100 mg. Your doctor may consider your kidney function, blood pressure, heart health, other medicines, and the severity of your erectile dysfunction before recommending a suitable treatment or dose.

Zudena should also not be combined with nitrate medicines because PDE5 inhibitors can cause a potentially dangerous fall in blood pressure.

Zudena 100 mg may require caution or avoidance in moderate-to-severe CKD. Do not self-medicate; obtain individualized medical advice before taking it.