A pharmaceutically active agent, a pharmaceutically active agent carrier andmethod of use thereof are described. In some embodiments, a system may includea composition. The composition may include one or more bridged polycyclic compounds.At least one of the bridged polycyclic compounds may include at least two cyclicgroups, and at least two pharmaceutically active agents may be associated withthe bridged polycyclic compound. In some embodiments, a bridged polycycliccompound may be pharmaceutically active. In some embodiments, a bridged polycycliccompound may be function as a carrier for pharmaceutically active agents.