INTRAMUSCULAR INJECTION SITES Intramuscular (IM) injections are given directly into the muscle, where the medication is absorbed more quickly than subcutaneous injections. There are several Nwokeiwu Valentine Not all shots are the same here's a guide Injections are a fast, effective way to deliver medications, nutrients, and vaccines directly into the bodybut not all injections are the Subcutaneous Injection: What It Is and How to Give One A Guide to the Best Needles for B12 Injections Precision Labs How to self inject intramuscular vitamin B12 Overview Guy's and St Thomas' NHS Foundation Trust