Table 2.

Medications Involved in Dosage Form Prescribing Errors

Drug Class/Drug	n	%	n (%) Error Types Rated as Fatal/Severe or Serious (N = 52)
Cardiovascular agents	208	51.7	2 (3.8)
Clonidine	2	0.5	0
Diltiazem	58	14.4	0
Disopyramide	1	0.2	1 (1.9)
Isosorbide dinitrate	8	2.0	0
Isosorbide mononitrate	48	11.9	0
Metoprolol	6	1.5	0
Nicardipine	1	0.2	0
Nifedipine	45	11.2	0
Nimodipine	1	0.2	0
Nitroglycerine	3	0.7	0
Procainamide	2	0.5	1 (1.9)
Propranolol	5	1.2	0
Verapamil	28	7.0	0
Anti-diabetic agents	39	9.7	30 (57.7)
Glipizide	2	0.5	0
Insulin	37	9.2	30 (57.7)
Narcotic analgesic agents	37	9.2	0
Fentanyl	2	0.5	0
Morphine	18	4.5	0
Oxycodone	17	4.2	0
Psychiatric agents	34	8.5	2 (3.8)
Bupropion	14	3.5	0
Fluphenazine	3	0.7	1 (1.9)
Haloperidol	1	0.2	1 (1.9)
Lithium	1	0.2	0
Venlafaxine	15	3.7	0
Xanthines (theophylline)	29	7.2	0
Anti-epileptic agents	13	3.2	0
Carbamazepine	8	2.0	0
Valproate/valproic acid	5	1.2	0
Antimicrobials	10	2.5	6 (11.5)
Amphotericin B	3	0.7	3 (5.8)
Penicillin	2	0.5	0
Saquinavir	3	0.7	3 (5.8)
Vancomycin	2	0.5	0
Immunosuppressants (cyclosporine)	8	2.0	8 (15.4)
Anti-parkinsonian agents (levodopa/carbidopa)	7	1.7	0
Gastrointestinal agents	4	1.0	0
Bisacodyl	1	0.2	0
Hyoscyamine	1	0.2	0
Mesalamine	2	0.5	0
Hormonal agents	2	0.5	1 (1.9)
Betamethasone	1	0.2	1 (1.9)
Testosterone	1	0.2	0
Ophthalmics (timolol)	3	0.7	0
Antihistamines (fexofenadine)	2	0.5	0
Colchicine	2	0.5	2 (3.8)
Rhimmune globulin	1	0.2	1 (1.9)
Guaifenesin	1	0.2	0
Aspirin	1	0.2	0
Sumatriptan	1	0.2	0
Total	402		52