They are represented at the national level by professional organisations such as the Royal Pharmaceutical Society of Great Britain (RPSGB), the Pharmacy Guild of Australia (PGA), and the American Pharmacists Association (APhA).
Hospital pharmacists and trained pharmacy technicians compound sterile products for patients including total parenteral nutrition (TPN), and other medications given intravenously.
In practice, the number of packages containing prescription drugs sent to United States on a daily basis far exceeds customs" capabilities to inspect them.
However, this practice has been criticized as potentially dangerous, especially by those who feel that only doctors can reliably assess contraindications, risk/benefit ratios, and an individual"s overall suitability for use of a medication.