A combination of the two drugs may be used in dogs that do not respond to single drug therapy, or for those dogs who do not tolerate high doses of either. (texaswestveterinarian.com)
It is a technique used by physicians that fight kidney rejection and autoimmune diseases of many sort — give multiple drugs at lower doses rather than single drugs at high doses. (2ndchance.info)
Although its current products are based on single drugs, the company does hold a license to develop dual - drug nanocells. (scientificamerican.com)