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': 2002}
Visit 1: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-07-15', 'end datetime': '2010-07-15'}
Visit 2: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2010-12-18', 'end datetime': '2010-12-18'}
Visit 3: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2011-11-09', 'end datetime': '2011-11-09'}
Visit 4: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2012-09-29', 'end datetime': '2012-09-29'}
Visit 5: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2013-09-08', 'end datetime': '2013-09-08'}
Visit 6: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-08-13', 'end datetime': '2014-08-13'}
Visit 7: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2014-09-28', 'end datetime': '2014-09-28'}
Visit 8: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2015-08-21', 'end datetime': '2015-08-21'}
Visit 9: {'visit': 'Emergency Room Visit', 'visit type': 'EHR encounter record', 'start datetime': '2015-11-03', 'end datetime': '2015-11-03'}
Visit 10: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-01-10', 'end datetime': '2016-01-10'}
Visit 11: {'visit': 'Outpatient Visit', 'visit type': 'EHR encounter record', 'start datetime': '2016-08-10', 'end datetime': '2016-08-10'}
Measurement 1: {'measurement': 'Oral temperature', 'measurement type': 'EHR encounter record', 'measurement date': '2010-07-15T00:00:00', 'unit': 'Cel', 'value': 37.95}
Measurement 2: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2010-12-18T00:00:00', 'unit': 'cm', 'value': 130.08}
Measurement 3: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2010-12-18T00:00:00', 'unit': 'kg', 'value': 24.12}
Measurement 4: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2010-12-18T00:00:00', 'unit': 'kg/m2', 'value': 14.26}
Measurement 5: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-12-18T00:00:00', 'unit': 'mmHg', 'value': 133.0}
Measurement 6: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2010-12-18T00:00:00', 'unit': 'mmHg', 'value': 83.0}
Measurement 7: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2011-11-09T00:00:00', 'unit': 'cm', 'value': 135.44}
Measurement 8: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2011-11-09T00:00:00', 'unit': 'kg', 'value': 26.53}
Measurement 9: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2011-11-09T00:00:00', 'unit': 'kg/m2', 'value': 14.46}
Measurement 10: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-11-09T00:00:00', 'unit': 'mmHg', 'value': 129.0}
Measurement 11: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2011-11-09T00:00:00', 'unit': 'mmHg', 'value': 74.0}
Measurement 12: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2012-09-29T00:00:00', 'unit': 'cm', 'value': 140.36}
Measurement 13: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2012-09-29T00:00:00', 'unit': 'kg', 'value': 29.25}
Measurement 14: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2012-09-29T00:00:00', 'unit': 'kg/m2', 'value': 14.85}
Measurement 15: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2012-09-29T00:00:00', 'unit': 'mmHg', 'value': 128.0}
Measurement 16: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2012-09-29T00:00:00', 'unit': 'mmHg', 'value': 79.0}
Measurement 17: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2013-09-08T00:00:00', 'unit': 'cm', 'value': 145.0}
Measurement 18: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2013-09-08T00:00:00', 'unit': 'kg', 'value': 32.39}
Measurement 19: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2013-09-08T00:00:00', 'unit': 'kg/m2', 'value': 15.41}
Measurement 20: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-09-08T00:00:00', 'unit': 'mmHg', 'value': 117.0}
Measurement 21: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2013-09-08T00:00:00', 'unit': 'mmHg', 'value': 73.0}
Measurement 22: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-13T00:00:00', 'unit': 'cm', 'value': 149.93}
Measurement 23: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-13T00:00:00', 'unit': 'kg', 'value': 36.02}
Measurement 24: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-13T00:00:00', 'unit': 'kg/m2', 'value': 16.02}
Measurement 25: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-13T00:00:00', 'unit': 'mmHg', 'value': 120.0}
Measurement 26: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2014-08-13T00:00:00', 'unit': 'mmHg', 'value': 76.0}
Measurement 27: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2015-08-21T00:00:00', 'unit': 'cm', 'value': 157.16}
Measurement 28: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2015-08-21T00:00:00', 'unit': 'kg', 'value': 40.96}
Measurement 29: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2015-08-21T00:00:00', 'unit': 'kg/m2', 'value': 16.58}
Measurement 30: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2015-08-21T00:00:00', 'unit': 'mmHg', 'value': 111.0}
Measurement 31: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2015-08-21T00:00:00', 'unit': 'mmHg', 'value': 78.0}
Measurement 32: {'measurement': 'Body Height', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-10T00:00:00', 'unit': 'cm', 'value': 164.38}
Measurement 33: {'measurement': 'Body Weight', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-10T00:00:00', 'unit': 'kg', 'value': 45.58}
Measurement 34: {'measurement': 'Body Mass Index', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-10T00:00:00', 'unit': 'kg/m2', 'value': 16.87}
Measurement 35: {'measurement': 'Systolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-10T00:00:00', 'unit': 'mmHg', 'value': 103.0}
Measurement 36: {'measurement': 'Diastolic Blood Pressure', 'measurement type': 'EHR encounter record', 'measurement date': '2016-08-10T00:00:00', 'unit': 'mmHg', 'value': 72.0}
Procedure 1: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2010-12-18', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 2: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2013-09-08', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 3: {'procedure': 'Measurement of respiratory function (procedure)', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2014-09-28', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Procedure 4: {'procedure': 'Documentation of current medications', 'procedure type': 'EHR encounter record', 'procedure start datetime': '2016-08-10', 'procedure end datetime': 'Not Extracted', 'modifier': 'Not Extracted'}
Current Medications:
Medication 1: {'Drug name': 'Dextromethorphan Hydrobromide 1 MG/ML', 'Start datetime': '2014-09-28', '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. Chlorpheniramine 8 MG Oral Tablet
B. Penicillin V Potassium 250 MG
C. 0.3 ML EPINEPHrine 0.5 MG/ML Auto-Injector
D. Astemizole 10 MG Oral Tablet
E. NITROFURANTOIN  MACROCRYSTALS 50 MG [Macrodantin]

Please share a single capital letter representing your selected answer: 
Chlorpheniramine 8 MG Oral Tablet Penicillin V Potassium 250 MG 0.3 ML EPINEPHrine 0.5 MG/ML Auto-Injector Astemizole 10 MG Oral Tablet NITROFURANTOIN  MACROCRYSTALS 50 MG [Macrodantin]