It is a useful form of medication for patients who refuse to take tablets because they don’t want to comply with treatment.

It is cost effective because there is less waste as patients forget to take oral medication.

The intravenous route reduces the risk of infection because the drugs are made in a sterile environment and kept in aseptic conditions.

The intravenous route provides an immediate therapeutic effect and gives better control of the rate of administration as a more precise dose can be calculated so treatment can be more reliable