Sildenafil oral jelly 100mg Kamagra, is used to treat erectile dysfunction. Sildenafil usually starts working within 30 to 60 minutes after ingestion. The oral jelly form may act a bit faster than traditional tablets because it is absorbed more quickly. The effects can last for up to 4-6 hours, though this varies from person to person. It’s important to be sexually aroused for the medication to work effectively. Avoid consuming alcohol or grapefruit juice as they can affect the efficacy and increase the risk of side effects. Also, it can interact with certain medications, especially nitrates used for chest pain.