Vidalista typically starts working within 30 minutes to 1 hour after ingestion, although the exact onset time can vary from person to person. It's important to note that sexual stimulation is required for Vidalista to be effective. Vidalista should be taken orally with a full glass of water. It can be taken with or without food, but consuming a high-fat meal may delay its onset of action. It's typically recommended to take Vidalista about 30 minutes to 1 hour before anticipated sexual activity.