Zudena 100 mg contains the active ingredient udanafil, which is used to treat erectile dysfunction. Generally, it is considered safe when taken as prescribed by a healthcare professional. However, as with any medication, it can have side effects and may not be suitable for everyone, especially those with certain medical conditions or those taking specific medications. It's essential to consult a healthcare provider to determine if Zudena 100 mg tablet is safe for you and to discuss any potential risks or interactions.