Adverse drug effects are a major cause of death in the world with tens of thousand deaths occurring each
year because of medication or prescription errors. Many errors involve the prescription or administration of the
wrong drug or dosage by care givers to patients due to illegible handwriting, dosage mistakes, confusing drug
names. With the use of mobile devices such as personal digital assistants and smart phones some of these
errors could be eliminated because they allow prescription information to be captured and viewed in type
rather than handwriting. This paper presents a formal modelling, and design of a prescription application to
improve health care services. This could lead to costs and life savings in healthcare centres across the world
especially in developing countries where treatment processes are usually paper based
