Route of drug administration - Intra Articular and Intrathecal

The intra articular and intrathecal route of drug administration are two of the most important routes for drug administration. The video gives brief information with examples regarding them. TIMELINE: 0:04 Introduction of intra articular route 0:16 Site of intra articular injection 0:45 Advantages of intra articular drug 0:59 Disadvantages of intra articular drug 1:21 Examples 1:37 Introduction of intrathecal route 1:47 Site of intrathecal injection 1:54 Advantages 2:18 Disadvantages 2:28 Why is there a need for an intrathecal route?