Indranil Ganguly, Sindhu Abraham, Srinivasan Bharath, and Varadharajan Madhavan, “Development of Fast Dissolving Sublingual Wafers of Promethazine Hydrochloride: Development of Fast Dissolving Sublingual Wafers of Promethazine Hydrochloride”, Iran J Pharm Sci, vol. 10, no. 1, pp. 71–92, Jan. 2014.