Nasal administration is a method of delivering medication through the nasal passages. This route allows drugs to be absorbed quickly into the bloodstream, bypassing the digestive system. It is often used for medications that need rapid effects, such as nasal sprays for allergies or opioids for pain relief. This method is beneficial because it can provide a non-invasive alternative to injections and oral medications. Additionally, nasal administration can enhance the bioavailability of certain drugs, making them more effective. Common examples include vaccines and hormones that are delivered through the nose for quick absorption.