I Receiving medical treatment by injections is very popular in many lowincome countries (Gumodoka et al., 1996; McVea, 1997;Reeler, 2000). The World Health Organization estimates that, worldwide, at least 12 billion syringes are sold each year for therapeutic injections and that many of these could be avoided if patients were treated with oral medication (Simonsen et al. 1999).Eliminating unnecessary therapeutic injections would help reduce unsafe injection practices, such as the re-use of disposable syringes or needles, the use of unsterilised needles or syringes, and