Photos courtesy of H. Prytherch
This is a common sight along the roads of Cambodia-- a patient riding on the back of a moto on the way home, hooked up to an IV. There's large demand for IVs and injections in the country, and people seek it out whether or not it is medically necessary. The problem of overuse of drugs/IVs is more prevalent in rural areas where educational levels are much lower.
We asked some people in the communities when they typically get IVs, and we were told it's good for making the body strong again after many days out fishing or working in the fields. We're told they can be bought at any pharmacy or clinic, and the colored IVs are better because the medicine in it makes it more potent. (Unknown to them, oftentimes it is due to food coloring by unscrupulous drug vendors capitalising on the poor knowledge of drug use.)
...I can almost see the image of this in the bas reliefs of Angkor Wat!