IM (Intramuscular) injection is a type of dosage form that involves administering medication directly into a muscle using a needle. IM injections provide a quick and effective way to deliver medication, as they bypass the digestive system and enter the bloodstream directly. This method of delivery is commonly used for medications that cannot be taken orally or need to be delivered quickly, such as antibiotics, pain relief medication, and hormones. The muscles in the upper arm, thigh, and hip are commonly used for IM injections. Proper technique is important when administering IM injections to avoid complications such as infections and tissue damage. It is also important to follow the manufacturer's instructions and any relevant regulations regarding the administration of IM injections.