Sildenafil citrate in Caverta 100 mg typically starts working within 30-60 minutes after ingestion and remains effective for about 4-6 hours. The timing of the medication is crucial, and it should be taken before sexual activity.Caverta 100 mg, like other medications for ED, can have potential side effects and interactions with other drugs. It's crucial to consult with a healthcare provider before using Caverta 100 mg to ensure it is safe for your specific situation.