Infusion therapy is the continuous administration of medication over a certain period of time, which is dissolved in a saline solution. The medication is administered via an intravenous line, either through a so-called Braunüle (needle with a solid plastic tube), or through a Butterfly (small needle that remains in the vein for a short time).

There are a variety of medications that can be administered this way if it becomes necessary for certain health reasons. Whether this type of therapy becomes necessary is always decided on a case-by-case basis. Some medicines, e.g. special antibiotics, are not available orally, in which case intravenous administration is necessary. In most cases, however, this is done in hospital, as several daily doses are necessary. For logistical reasons, this is not possible in a practice.

Furthermore, there are diseases in which the absorption of medicines, vitamins and trace elements is disturbed. In these cases, infusion therapy is a good way of supplying patients with the necessary medicines or vitamins.