Prescriptions made by John Hamilton Addison

Data for 2018

10.14K

Medicare Part D Prescriptions Filled, Including Refills

Rank: 4 out of 36 providers in this state and specialty

$454K

Total Retail Price of All Prescriptions

Rank: 7 out of 36 providers in this state and specialty

606

Patients Receiving at Least One Drug in Part D

Rank: 5 out of 36 providers in this state and specialty

98%

Patients 65 Years and Older

85

Average Age of Patients

Average age of patients for providers in this state and specialty is 80

Drug Categories

O

Opioid

An opioid drug. Prescription opioids (painkillers) can help alleviate certain kinds of pain in the short term but carry serious health risks.
A

Antibiotic

Used to treat bacterial infections but are often prescribed incorrectly to treat viral infections, such as chest colds or the flu.
P

Antipsychotic

Used to manage psychosis, principally in schizophrenia but also in a range of other psychotic disorders.

Prescription Data

The table below list this provider’s drugs, the number of prescriptions and how many went to seniors. Drugs are ranked by volume. Rank in State ranks all providers that have the self-identified specialty of Geriatric Medicine in Washington and ranks the number of prescriptions that have been made for the specific drug.

Drug Name Rank in State Total Prescriptions Filled with Refills Prescript. to 65+ Patients Receiving this Drug Patients 65+ OAP
1 LEVOTHYROXINE SODIUM50
of 310
5490 prescriptions
Less than 1% of all prescriptions
53701020 patients
17% of all patients
< 11
2 OMEPRAZOLE50
of 260
3050 prescriptions
Less than 1% of all prescriptions
3050750 patients
12% of all patients
750 patients
12% of all patients
3 FUROSEMIDE20
of 310
4620 prescriptions
Less than 1% of all prescriptions
830 patients
14% of all patients
< 11
4 MIRTAZAPINE10
of 280
3120 prescriptions
Less than 1% of all prescriptions
3120680 patients
11% of all patients
680 patients
11% of all patients
5 SERTRALINE HCL20
of 300
3100 prescriptions
Less than 1% of all prescriptions
490 patients
8% of all patients
< 11
6 CITALOPRAM HBR
(CITALOPRAM HYDROBROMIDE)
10
of 240
2890 prescriptions
Less than 1% of all prescriptions
520 patients
9% of all patients
< 11
7 LISINOPRIL80
of 310
2210 prescriptions
Less than 1% of all prescriptions
480 patients
8% of all patients
< 11
8 TRAZODONE HCL20
of 270
2680 prescriptions
Less than 1% of all prescriptions
2680480 patients
8% of all patients
480 patients
8% of all patients
9 POTASSIUM CHLORIDE30
of 280
2660 prescriptions
Less than 1% of all prescriptions
2660430 patients
7% of all patients
430 patients
7% of all patients
10 ATORVASTATIN CALCIUM110
of 320
2080 prescriptions
Less than 1% of all prescriptions
2080570 patients
9% of all patients
570 patients
9% of all patients
11 QUETIAPINE FUMARATE20
of 270
2270 prescriptions
Less than 1% of all prescriptions
2270380 patients
6% of all patients
380 patients
6% of all patients
P
12 TAMSULOSIN HCL50
of 290
1400 prescriptions
Less than 1% of all prescriptions
1400270 patients
4% of all patients
270 patients
4% of all patients
13 WARFARIN SODIUM10
of 260
3260 prescriptions
Less than 1% of all prescriptions
430 patients
7% of all patients
< 11
14 METOPROLOL TARTRATE60
of 300
1400 prescriptions
Less than 1% of all prescriptions
1400420 patients
7% of all patients
420 patients
7% of all patients
15 METOPROLOL SUCCINATE80
of 310
1530 prescriptions
Less than 1% of all prescriptions
1530380 patients
6% of all patients
380 patients
6% of all patients
16 GABAPENTIN110
of 290
1480 prescriptions
Less than 1% of all prescriptions
510 patients
8% of all patients
< 11
17 POLYETHYLENE GLYCOL 335020
of 220
1610 prescriptions
Less than 1% of all prescriptions
530 patients
9% of all patients
< 11
18 PANTOPRAZOLE SODIUM20
of 290
1460 prescriptions
Less than 1% of all prescriptions
1460300 patients
5% of all patients
300 patients
5% of all patients
19 PREDNISONE10
of 230
1330 prescriptions
Less than 1% of all prescriptions
370 patients
6% of all patients
< 11
20 ESCITALOPRAM OXALATE30
of 220
1520 prescriptions
Less than 1% of all prescriptions
240 patients
4% of all patients
< 11
21 METFORMIN HCL70
of 270
1210 prescriptions
Less than 1% of all prescriptions
270 patients
4% of all patients
< 11
22 DULOXETINE HCL20
of 210
1110 prescriptions
Less than 1% of all prescriptions
1110240 patients
4% of all patients
240 patients
4% of all patients
23 LOSARTAN POTASSIUM150
of 280
1050 prescriptions
Less than 1% of all prescriptions
1050290 patients
5% of all patients
290 patients
5% of all patients
24 ALLOPURINOL50
of 220
920 prescriptions
Less than 1% of all prescriptions
920180 patients
3% of all patients
180 patients
3% of all patients
25 ALENDRONATE SODIUM20
of 250
1050 prescriptions
Less than 1% of all prescriptions
1050230 patients
4% of all patients
230 patients
4% of all patients
26 LATANOPROST10
of 120
1270 prescriptions
Less than 1% of all prescriptions
1270210 patients
3% of all patients
210 patients
3% of all patients
27 CLOPIDOGREL
(CLOPIDOGREL BISULFATE)
60
of 290
910 prescriptions
Less than 1% of all prescriptions
910150 patients
2% of all patients
150 patients
2% of all patients
28 FLUTICASONE PROPIONATE70
of 260
770 prescriptions
Less than 1% of all prescriptions
650220 patients
4% of all patients
< 11
29 OLANZAPINE20
of 120
770 prescriptions
Less than 1% of all prescriptions
770< 11< 11P
30 DIGOXIN10
of 160
1060 prescriptions
Less than 1% of all prescriptions
1060140 patients
2% of all patients
140 patients
2% of all patients
31 OXYCODONE HCL40
of 240
1020 prescriptions
Less than 1% of all prescriptions
400 patients
7% of all patients
< 11O
32 ELIQUIS
(APIXABAN)
20
of 240
1200 prescriptions
Less than 1% of all prescriptions
1200270 patients
4% of all patients
270 patients
4% of all patients
33 CARVEDILOL60
of 250
850 prescriptions
Less than 1% of all prescriptions
850220 patients
4% of all patients
220 patients
4% of all patients
34 LANTUS
(INSULIN GLARGINE,HUM.REC.ANLOG)
20
of 80
750 prescriptions
Less than 1% of all prescriptions
140 patients
2% of all patients
< 11
35 FLUOXETINE HCL10
of 160
630 prescriptions
Less than 1% of all prescriptions
630140 patients
2% of all patients
140 patients
2% of all patients
36 RISPERIDONE50
of 180
630 prescriptions
Less than 1% of all prescriptions
160 patients
3% of all patients
< 11P
37 AMLODIPINE BESYLATE260
of 300
610 prescriptions
Less than 1% of all prescriptions
610220 patients
4% of all patients
220 patients
4% of all patients
38 SIMVASTATIN160
of 290
560 prescriptions
Less than 1% of all prescriptions
140 patients
2% of all patients
< 11
39 LORAZEPAM60
of 180
770 prescriptions
Less than 1% of all prescriptions
770210 patients
3% of all patients
210 patients
3% of all patients
40 LEVETIRACETAM30
of 140
550 prescriptions
Less than 1% of all prescriptions
550< 11< 11
41 RANITIDINE HCL50
of 200
540 prescriptions
Less than 1% of all prescriptions
540160 patients
3% of all patients
160 patients
3% of all patients
42 HYDROCHLOROTHIAZIDE150
of 260
380 prescriptions
Less than 1% of all prescriptions
380< 11< 11
43 HUMALOG
(INSULIN LISPRO)
10
of 40
480 prescriptions
Less than 1% of all prescriptions
< 11< 11
44 TRAMADOL HCL80
of 180
630 prescriptions
Less than 1% of all prescriptions
630270 patients
4% of all patients
270 patients
4% of all patients
O
45 LANTUS SOLOSTAR
(INSULIN GLARGINE,HUM.REC.ANLOG)
80
of 180
510 prescriptions
Less than 1% of all prescriptions
510130 patients
2% of all patients
130 patients
2% of all patients
46 HYDROCODONE-ACETAMINOPHEN
(HYDROCODONE/ACETAMINOPHEN)
150
of 230
570 prescriptions
Less than 1% of all prescriptions
570270 patients
4% of all patients
270 patients
4% of all patients
O
47 DIGOX
(DIGOXIN)
20
of 40
360 prescriptions
Less than 1% of all prescriptions
360< 11< 11
48 TIMOLOL MALEATE10
of 30
390 prescriptions
Less than 1% of all prescriptions
390< 11< 11
49 CARBIDOPA-LEVODOPA
(CARBIDOPA/LEVODOPA)
40
of 130
410 prescriptions
Less than 1% of all prescriptions
410< 11< 11
50 PROPRANOLOL HCL10
of 100
320 prescriptions
Less than 1% of all prescriptions
320< 11< 11
51 DONEPEZIL HCL190
of 270
400 prescriptions
Less than 1% of all prescriptions
400110 patients
2% of all patients
110 patients
2% of all patients
52 RALOXIFENE HCL20
of 30
220 prescriptions
Less than 1% of all prescriptions
220< 11< 11
53 SPIRIVA
(TIOTROPIUM BROMIDE)
30
of 170
390 prescriptions
Less than 1% of all prescriptions
390< 11< 11
54 DILTIAZEM 24HR ER (CD)
(DILTIAZEM HCL)
30
of 100
390 prescriptions
Less than 1% of all prescriptions
390< 11< 11
55 PRAVASTATIN SODIUM140
of 180
270 prescriptions
Less than 1% of all prescriptions
270< 11< 11
56 CEPHALEXIN10
of 130
720 prescriptions
Less than 1% of all prescriptions
720230 patients
4% of all patients
230 patients
4% of all patients
A
57 ESTRADIOL30
of 80
300 prescriptions
Less than 1% of all prescriptions
300120 patients
2% of all patients
120 patients
2% of all patients
58 XARELTO
(RIVAROXABAN)
30
of 160
450 prescriptions
Less than 1% of all prescriptions
450130 patients
2% of all patients
130 patients
2% of all patients
59 ADVAIR DISKUS
(FLUTICASONE PROPION/SALMETEROL)
50
of 190
300 prescriptions
Less than 1% of all prescriptions
300< 11< 11
60 GLIPIZIDE60
of 180
270 prescriptions
Less than 1% of all prescriptions
270< 11< 11
61 DOXYCYCLINE HYCLATE20
of 90
540 prescriptions
Less than 1% of all prescriptions
540130 patients
2% of all patients
130 patients
2% of all patients
A
62 CLONAZEPAM60
of 120
310 prescriptions
Less than 1% of all prescriptions
310< 11< 11
63 DIVALPROEX SODIUM50
of 120
280 prescriptions
Less than 1% of all prescriptions
280< 11< 11
64 ISOSORBIDE MONONITRATE ER
(ISOSORBIDE MONONITRATE)
80
of 180
280 prescriptions
Less than 1% of all prescriptions
280< 11< 11
65 FLOVENT HFA
(FLUTICASONE PROPIONATE)
10
of 60
270 prescriptions
Less than 1% of all prescriptions
270< 11< 11
66 HUMALOG KWIKPEN U-100
(INSULIN LISPRO)
20
of 80
330 prescriptions
Less than 1% of all prescriptions
330< 11< 11
67 TOLTERODINE TARTRATE ER
(TOLTERODINE TARTRATE)
10
of 30
270 prescriptions
Less than 1% of all prescriptions
270< 11< 11
68 ONDANSETRON HCL30
of 140
330 prescriptions
Less than 1% of all prescriptions
180 patients
3% of all patients
< 11
69 ARIPIPRAZOLE30
of 80
280 prescriptions
Less than 1% of all prescriptions
280< 11< 11P
70 LAMOTRIGINE30
of 120
280 prescriptions
Less than 1% of all prescriptions
280< 11< 11
71 KETOCONAZOLE10
of 60
290 prescriptions
Less than 1% of all prescriptions
290< 11< 11
72 TRIAMCINOLONE ACETONIDE10
of 130
580 prescriptions
Less than 1% of all prescriptions
580190 patients
3% of all patients
190 patients
3% of all patients
73 DOXEPIN HCL20
of 40
270 prescriptions
Less than 1% of all prescriptions
270< 11< 11
74 METHOTREXATE
(METHOTREXATE SODIUM)
20
of 100
340 prescriptions
Less than 1% of all prescriptions
340< 11< 11
75 VENLAFAXINE HCL30
of 70
260 prescriptions
Less than 1% of all prescriptions
260< 11< 11
76 VENLAFAXINE HCL ER
(VENLAFAXINE HCL)
100
of 180
270 prescriptions
Less than 1% of all prescriptions
270< 11< 11
77 CALCITONIN-SALMON
(CALCITONIN,SALMON,SYNTHETIC)
10
of 20
250 prescriptions
Less than 1% of all prescriptions
250120 patients
2% of all patients
120 patients
2% of all patients
78 AMIODARONE HCL20
of 50
260 prescriptions
Less than 1% of all prescriptions
260< 11< 11
79 BACLOFEN90
of 160
240 prescriptions
Less than 1% of all prescriptions
240< 11< 11
80 ISOSORBIDE MONONITRATE10
220 prescriptions
Less than 1% of all prescriptions
220< 11< 11
81 METHADONE HCL20
of 60
240 prescriptions
Less than 1% of all prescriptions
240< 11< 11O
82 BRIMONIDINE TARTRATE10
of 30
290 prescriptions
Less than 1% of all prescriptions
290< 11< 11
83 FINASTERIDE140
of 220
230 prescriptions
Less than 1% of all prescriptions
230< 11< 11
84 ALCOHOL PREP PADS
(ALCOHOL ANTISEPTIC PADS)
10
280 prescriptions
Less than 1% of all prescriptions
280< 11< 11
85 NORTRIPTYLINE HCL40
of 60
180 prescriptions
Less than 1% of all prescriptions
< 11< 11
86 MORPHINE SULFATE ER
(MORPHINE SULFATE)
90
of 110
240 prescriptions
Less than 1% of all prescriptions
240< 11< 11O
87 BUSPIRONE HCL50
of 150
270 prescriptions
Less than 1% of all prescriptions
270< 11< 11
88 LIOTHYRONINE SODIUM30
of 70
140 prescriptions
Less than 1% of all prescriptions
140< 11< 11
89 SULFAMETHOXAZOLE-TRIMETHOPRIM
(SULFAMETHOXAZOLE/TRIMETHOPRIM)
10
of 80
360 prescriptions
Less than 1% of all prescriptions
180 patients
3% of all patients
< 11A
90 UNIFINE PENTIPS
(PEN NEEDLE, DIABETIC)
10
of 30
250 prescriptions
Less than 1% of all prescriptions
250< 11< 11
91 TORSEMIDE70
of 130
230 prescriptions
Less than 1% of all prescriptions
230< 11< 11
92 IPRATROPIUM-ALBUTEROL
(IPRATROPIUM/ALBUTEROL SULFATE)
20
of 60
480 prescriptions
Less than 1% of all prescriptions
480210 patients
3% of all patients
210 patients
3% of all patients
93 MEMANTINE HCL190
of 250
240 prescriptions
Less than 1% of all prescriptions
< 11< 11
94 BENAZEPRIL HCL30
of 110
220 prescriptions
Less than 1% of all prescriptions
220< 11< 11
95 SYNTHROID
(LEVOTHYROXINE SODIUM)
100
of 130
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
96 VALSARTAN-HYDROCHLOROTHIAZIDE
(VALSARTAN/HYDROCHLOROTHIAZIDE)
10
of 20
140 prescriptions
Less than 1% of all prescriptions
140< 11< 11
97 VALSARTAN30
of 100
200 prescriptions
Less than 1% of all prescriptions
200< 11< 11
98 PRAMIPEXOLE DIHYDROCHLORIDE
(PRAMIPEXOLE DI-HCL)
90
of 170
160 prescriptions
Less than 1% of all prescriptions
160< 11< 11
99 HYDRALAZINE HCL100
of 120
190 prescriptions
Less than 1% of all prescriptions
190< 11< 11
100 DORZOLAMIDE-TIMOLOL
(DORZOLAMIDE HCL/TIMOLOL MALEAT)
20
of 20
160 prescriptions
Less than 1% of all prescriptions
160< 11< 11
101 CHOLESTYRAMINE
(CHOLESTYRAMINE (WITH SUGAR))
10
of 30
220 prescriptions
Less than 1% of all prescriptions
220< 11< 11
102 NOVOFINE AUTOCOVER
(PEN NEEDLE, DIABETIC, SAFETY)
20
of 30
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11
103 CHLORHEXIDINE GLUCONATE20
of 40
220 prescriptions
Less than 1% of all prescriptions
< 11< 11
104 SOTALOL
(SOTALOL HCL)
10
of 20
140 prescriptions
Less than 1% of all prescriptions
140< 11< 11
105 ROPINIROLE HCL90
of 130
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11
106 CALCITRIOL30
of 70
180 prescriptions
Less than 1% of all prescriptions
180< 11< 11
107 LEVEMIR
(INSULIN DETEMIR)
20
of 20
170 prescriptions
Less than 1% of all prescriptions
170< 11< 11
108 ALPHAGAN P
(BRIMONIDINE TARTRATE)
10
180 prescriptions
Less than 1% of all prescriptions
180< 11< 11
109 VALACYCLOVIR
(VALACYCLOVIR HCL)
30
of 40
150 prescriptions
Less than 1% of all prescriptions
150< 11< 11
110 DEXTROAMPHETAMINE-AMPHETAMINE
(DEXTROAMPHETAMINE/AMPHETAMINE)
10
140 prescriptions
Less than 1% of all prescriptions
140< 11< 11
111 INCRUSE ELLIPTA
(UMECLIDINIUM BROMIDE)
40
of 90
140 prescriptions
Less than 1% of all prescriptions
140< 11< 11
112 PAROXETINE HCL80
of 100
140 prescriptions
Less than 1% of all prescriptions
140< 11< 11
113 GLIMEPIRIDE70
of 90
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11
114 BUMETANIDE40
of 50
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11
115 DIVALPROEX SODIUM ER
(DIVALPROEX SODIUM)
20
of 30
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11
116 OXYBUTYNIN CHLORIDE ER
(OXYBUTYNIN CHLORIDE)
50
of 70
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11
117 THEOPHYLLINE ANHYDROUS10
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11
118 HYDROMORPHONE HCL10
of 40
160 prescriptions
Less than 1% of all prescriptions
160< 11< 11O
119 PHENYTOIN SODIUM EXTENDED50
of 50
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11
120 GLIPIZIDE ER
(GLIPIZIDE)
100
of 140
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11
121 TOPIRAMATE50
of 50
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11O
122 MORPHINE SULFATE30
of 40
160 prescriptions
Less than 1% of all prescriptions
160< 11< 11O
123 ANASTROZOLE20
of 20
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
124 AZOPT
(BRINZOLAMIDE)
10
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
125 OXCARBAZEPINE40
of 40
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
126 PRAZOSIN HCL90
of 100
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11
127 KLOR-CON M20
(POTASSIUM CHLORIDE)
10
of 20
140 prescriptions
Less than 1% of all prescriptions
140< 11< 11
128 SENSIPAR
(CINACALCET HCL)
10
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
129 DEXAMETHASONE10
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
130 FENTANYL80
of 110
150 prescriptions
Less than 1% of all prescriptions
< 11< 11O
131 NOVOLOG FLEXPEN
(INSULIN ASPART)
90
of 90
110 prescriptions
Less than 1% of all prescriptions
110< 11< 11
132 FLUCONAZOLE60
of 60
150 prescriptions
Less than 1% of all prescriptions
150< 11< 11
133 OXYBUTYNIN CHLORIDE100
of 110
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
134 TIZANIDINE HCL50
of 80
110 prescriptions
Less than 1% of all prescriptions
110< 11< 11
135 HYDROXYCHLOROQUINE SULFATE30
of 40
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
136 PROCTOZONE-HC
(HYDROCORTISONE)
10
250 prescriptions
Less than 1% of all prescriptions
250< 11< 11
137 CLOZAPINE20
of 40
130 prescriptions
Less than 1% of all prescriptions
130< 11< 11P
138 KLOR-CON 10
(POTASSIUM CHLORIDE)
30
of 50
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
139 MUPIROCIN
(MUPIROCIN CALCIUM)
10
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
140 LOPERAMIDE
(LOPERAMIDE HCL)
40
of 80
200 prescriptions
Less than 1% of all prescriptions
200< 11< 11
141 MULTAQ
(DRONEDARONE HCL)
10
110 prescriptions
Less than 1% of all prescriptions
110< 11< 11
142 NYSTATIN80
of 150
160 prescriptions
Less than 1% of all prescriptions
160< 11< 11
143 CIPROFLOXACIN HCL90
of 130
140 prescriptions
Less than 1% of all prescriptions
< 11< 11A
144 SYMBICORT
(BUDESONIDE/FORMOTEROL FUMARATE)
80
of 130
110 prescriptions
Less than 1% of all prescriptions
110< 11< 11
145 OSELTAMIVIR PHOSPHATE60
of 90
210 prescriptions
Less than 1% of all prescriptions
210180 patients
3% of all patients
180 patients
3% of all patients
146 NYSTOP
(NYSTATIN)
40
of 80
220 prescriptions
Less than 1% of all prescriptions
220140 patients
2% of all patients
140 patients
2% of all patients
147 APRISO
(MESALAMINE)
10
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
148 TAMOXIFEN CITRATE20
of 20
110 prescriptions
Less than 1% of all prescriptions
110< 11< 11
149 CEFUROXIME
(CEFUROXIME AXETIL)
10
of 20
180 prescriptions
Less than 1% of all prescriptions
180170 patients
3% of all patients
170 patients
3% of all patients
A
150 LEVOFLOXACIN10
of 30
310 prescriptions
Less than 1% of all prescriptions
310260 patients
4% of all patients
260 patients
4% of all patients
A
151 METRONIDAZOLE20
of 30
170 prescriptions
Less than 1% of all prescriptions
170< 11< 11A
152 COLCRYS
(COLCHICINE)
10
110 prescriptions
Less than 1% of all prescriptions
110< 11< 11
153 ALBUTEROL SULFATE20
of 40
200 prescriptions
Less than 1% of all prescriptions
200< 11< 11
154 LIDOCAINE HCL VISCOUS
(LIDOCAINE HCL)
10
180 prescriptions
Less than 1% of all prescriptions
180< 11< 11
155 AMOXICILLIN-CLAVULANATE POTASS
(AMOXICILLIN/POTASSIUM CLAV)
60
of 100
190 prescriptions
Less than 1% of all prescriptions
190130 patients
2% of all patients
130 patients
2% of all patients
A
156 LIDOCAINE HCL20
of 20
120 prescriptions
Less than 1% of all prescriptions
120110 patients
2% of all patients
110 patients
2% of all patients
157 AZITHROMYCIN100
of 120
150 prescriptions
Less than 1% of all prescriptions
150130 patients
2% of all patients
130 patients
2% of all patients
A