Imiloxan is a drug which is used in scientific research. It acts as a selective antagonist for the ñ<sub>2B</sub> adrenergic receptor, and has been useful for distinguishing the actions of the different ñ<sub>2</sub> adrenergic subtypes.
The imidazole portion of imiloxan is prepared by the reaction of an imidate with the diethyl acetal of aminoacetaldehyde. N-Alkylation of the imidazole with ethyl iodide gives imiloxan.