Compositions comprising cyclohexylamines and aminoadamantanes

The invention is directed to formulations of pharmaceutical compounds, such as the Cyclohexylamines and Aminoadamantanes which have antimicrobial properties. In particular, it is directed to aqueous based formulations with reduced amounts of preservatives which allow safe and convenient administration and flexible dosing and which, in the case of oral formulations, are easy to swallow. Optionally, the compositions contain components that provide the requisite stability and shelf life while reducing or avoiding incrustation of the composition around the container closure which leads to leaks and difficulty in opening the container.