TABLE 2.

Essential Medicines List Medicines That Appear on Fewer Than 70% of Preferred Drug Lists (PDLs): 40 US States and the District of Columbia, 2009

Medicine	Therapeutic Class	% of PDLs Listing Medicine (n = 41)
Magnesium sulfate injection	Anticonvulsants	0
Omeprazole powder	Gastrointestinal	0
Clorazepate	Anticonvulsants	6
Prochlorperazine	Antipsychotics	25
Phenobarbital	Anticonvulsants	38
Omeprazolea	Gastrointestinal	38
Budesonide	Antiasthmatics	59
Loxapine	Antipsychotics	67
Lorazepam	Anticonvulsants	69

Note. Excluded Tennessee because it does not have a fee-for-service Medicaid population and 9 additional states (Arizona, Hawaii, Missouri, New Jersey, North Carolina, North Dakota, New Mexico, Oklahoma, and South Dakota) because their PDLs were not available online at the time of the search.

^aPrescription pill form.