Triad Compounding Pharmacy is a compounding-only pharmacy located in Cerritos, CA. Triad was established in 1996 by Ron Miller Pharm.D. Doctor Miller works with your doctor to formulate the correct strength and form of medication for your needs, when commercial medications are not the perfect treatment for you. Extensive training, computerization and use of the highest quality raw chemicals in the industry have allowed us to compound with confidence.