In addition, I.V. therapy enables rapid delivery of higher concentrations of medicines that may otherwise not be possible by oral means. Therefore, for individuals who are severely depleted or in need of high and rapid absorption of nutrients, I.V. therapy is extremely beneficial and strongly recommended.
Intramuscular (and in some cases, subcutaneous) injection of nutrients (i.e. B12, folic acid) also allows for higher absorption of the substance being administered and since the skin and muscle act as a time-release delivery system, smaller amounts of nutrient are absorbed (although more completely than by oral means) over a period of time.
For those individuals who are generally healthy and interested in “anti-aging” or simply preventative medicine, parenteral therapies offer delivery of high concentrations of potent anti-oxidants to combat oxidative stress which is a marker of premature aging, degenerative diseases and pre-cancerous states.