Caverta 50 mg should not be taken by individuals who are allergic to sildenafil citrate or any of the other ingredients in the medication. It should also be used with caution in individuals with certain medical conditions or those taking medications that may interact with sildenafil citrate.It's important to use Caverta 50 mg as prescribed by a healthcare professional and to follow their instructions carefully. If you experience any side effects or have concerns about its use, be sure to discuss them with your healthcare provider.