The stability of an emulsion is highly dependent on the formulation and selection of emulsifying agents. Below is a formulation of an oil-in water (“O/W”) emulsion. 

a) Explain the role of each of the ingredients in the formulation. (3 marks) 

b) Suggest the route of administration and provide an indication of this emulsion.  Explain your answer.  (3 marks) 

c) Comment on the stability of this formulation. Explain your answer. (4 marks) 

d) Discuss how the storage temperature may affect the stability of emulsion in general. (5 marks)