You are an assistant tasked with analyzing medical histories to determine which medication is missing from the patient’s current regimen.

<PatientData>
Demographics: {'race': 'White', 'gender': 'MALE', 'year of birth': 1947}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2011-02-13', 'end datetime': '2011-02-13'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2012-03-23', 'end datetime': '2012-03-23'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-04-10', 'end datetime': '2013-04-10'}
Visit 4: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-04-21', 'end datetime': '2013-04-21'}
Visit 5: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-08-30', 'end datetime': '2013-08-30'}
Visit 6: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-05-21', 'end datetime': '2014-05-21'}
Visit 7: {'visit': 'Emergency Room Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-07-14', 'end datetime': '2014-07-14'}
Visit 8: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-09-22', 'end datetime': '2014-09-22'}
Visit 9: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-10-30', 'end datetime': '2014-10-30'}
Visit 10: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2015-07-01', 'end datetime': '2015-07-01'}
Visit 11: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-05-27', 'end datetime': '2016-05-27'}
Measurement 1: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2011-02-13T00:00:00', 'unit': 'cm', 'value': 176.02}
Measurement 2: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2011-02-13T00:00:00', 'unit': 'kg', 'value': 94.87}
Measurement 3: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2011-02-13T00:00:00', 'unit': 'kg/m2', 'value': 30.62}
Measurement 4: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-02-13T00:00:00', 'unit': 'mmHg', 'value': 132.0}
Measurement 5: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-02-13T00:00:00', 'unit': 'mmHg', 'value': 81.0}
Measurement 6: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2011-02-13T00:00:00', 'unit': 'mg/dL', 'value': 173.0}
Measurement 7: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2011-02-13T00:00:00', 'unit': 'mg/dL', 'value': 122.0}
Measurement 8: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2011-02-13T00:00:00', 'unit': 'mg/dL', 'value': 87.0}
Measurement 9: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2011-02-13T00:00:00', 'unit': 'mg/dL', 'value': 61.0}
Measurement 10: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2012-03-23T00:00:00', 'unit': 'cm', 'value': 176.02}
Measurement 11: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2012-03-23T00:00:00', 'unit': 'kg', 'value': 93.42}
Measurement 12: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2012-03-23T00:00:00', 'unit': 'kg/m2', 'value': 30.15}
Measurement 13: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2012-03-23T00:00:00', 'unit': 'mmHg', 'value': 114.0}
Measurement 14: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2012-03-23T00:00:00', 'unit': 'mmHg', 'value': 76.0}
Measurement 15: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-21T00:00:00', 'unit': 'cm', 'value': 176.02}
Measurement 16: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-21T00:00:00', 'unit': 'kg', 'value': 91.87}
Measurement 17: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-21T00:00:00', 'unit': 'kg/m2', 'value': 29.65}
Measurement 18: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-21T00:00:00', 'unit': 'mmHg', 'value': 133.0}
Measurement 19: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-04-21T00:00:00', 'unit': 'mmHg', 'value': 73.0}
Measurement 20: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'cm', 'value': 176.02}
Measurement 21: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'kg', 'value': 90.12}
Measurement 22: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'kg/m2', 'value': 29.09}
Measurement 23: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'mmHg', 'value': 111.0}
Measurement 24: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'mmHg', 'value': 87.0}
Measurement 25: {'measurement': 'Total Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'mg/dL', 'value': 193.0}
Measurement 26: {'measurement': 'Triglycerides', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'mg/dL', 'value': 138.0}
Measurement 27: {'measurement': 'Low Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'mg/dL', 'value': 86.0}
Measurement 28: {'measurement': 'High Density Lipoprotein Cholesterol', 'measurement type': 'EHR encounter record', 'measurement date': '2014-05-21T00:00:00', 'unit': 'mg/dL', 'value': 79.0}
Measurement 29: {'measurement': 'DXA [T-score] Bone density', 'measurement type': 'EHR encounter record', 'measurement date': '2014-07-14T00:00:00', 'unit': '{T-score}', 'value': -0.29}
Measurement 30: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2015-07-01T00:00:00', 'unit': 'cm', 'value': 176.02}
Measurement 31: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2015-07-01T00:00:00', 'unit': 'kg', 'value': 86.45}
Measurement 32: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2015-07-01T00:00:00', 'unit': 'kg/m2', 'value': 27.9}
Measurement 33: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2015-07-01T00:00:00', 'unit': 'mmHg', 'value': 107.0}
Measurement 34: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2015-07-01T00:00:00', 'unit': 'mmHg', 'value': 85.0}
Measurement 35: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2016-05-27T00:00:00', 'unit': 'cm', 'value': 176.02}
Measurement 36: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2016-05-27T00:00:00', 'unit': 'kg', 'value': 86.45}
Measurement 37: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2016-05-27T00:00:00', 'unit': 'kg/m2', 'value': 27.9}
Measurement 38: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-05-27T00:00:00', 'unit': 'mmHg', 'value': 136.0}
Measurement 39: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-05-27T00:00:00', 'unit': 'mmHg', 'value': 76.0}
Procedure 1: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2011-02-13', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 2: {'procedure': 'Measurement of respiratory function (procedure)', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2013-04-10', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 3: {'procedure': 'Colonoscopy', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2013-08-30', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 4: {'procedure': 'Bone immobilization', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2014-07-14', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 5: {'procedure': 'Bone density scan (procedure)', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2014-07-14', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 6: {'procedure': 'Measurement of respiratory function (procedure)', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2014-09-22', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 7: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2016-05-27', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Current Medications:
Medication 1: {'Drug name': 'Penicillin V Potassium 500 MG', 'Start datetime': '1998-03-22', 'End datetime': '1998-03-22', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 2: {'Drug name': 'Acetaminophen 160 MG', 'Start datetime': '2013-04-10', 'End datetime': '2013-04-21', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 3: {'Drug name': 'Ibuprofen 200 MG Oral Tablet', 'Start datetime': '2014-07-14', 'End datetime': '2014-10-30', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
Medication 4: {'Drug name': 'Acetaminophen 160 MG', 'Start datetime': '2014-09-22', 'End datetime': '2014-10-06', 'Route': None, 'Quantity': 'Not Extracted', 'Stop Reason': 'Not Extracted', 'Dose Unit': 'Not Extracted'}
</PatientData>

Based on the EHR history above, which medication **should also be on the list today**?

A. Estrostep Fe 28 Day Pack
B. Implanon 68 MG Drug Implant
C. NITROFURANTOIN  MACROCRYSTALS 50 MG [Macrodantin]
D. oxyCODONE Hydrochloride 15 MG [OxyCONTIN]
E. Penicillin V Potassium 250 MG

Please share a single capital letter representing your selected answer: 
Estrostep Fe 28 Day Pack Implanon 68 MG Drug Implant NITROFURANTOIN  MACROCRYSTALS 50 MG [Macrodantin] oxyCODONE Hydrochloride 15 MG [OxyCONTIN] Penicillin V Potassium 250 MG