Citation Rankings
Highly Cited Researchers
World Highly Cited Researchers CitationMedical and Health Sciences / Pharmacology and Toxicology Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Toxinology
Experimental Pathology
Antivenoms
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,791
19,059
0.407
* Total Citation Counts Rankings
Ranking Based On Selection :2
Toxicology
Pharmacology
Nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,310
12,242
0.270
* Total Citation Counts Rankings
Ranking Based On Selection :3
toxicology-pharmacology-chemistry
health economy
Science Management
Security and Military Research
Technology Transfer in Biomedicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,227
27,090
0.673
* Total Citation Counts Rankings
Ranking Based On Selection :4
toxicology
risk assessment
carcinogenicity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,209
4,827
0.160
* Total Citation Counts Rankings
Ranking Based On Selection :5
Pharmacology
Toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,655
5,786
0.195
* Total Citation Counts Rankings
Ranking Based On Selection :6
metabolism
pharmacology
energy expenditure
obesity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,289
6,377
0.314
* Total Citation Counts Rankings
Ranking Based On Selection :7
cancer
pharmacology
pharmaceutical sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,965
5,885
0.310
* Total Citation Counts Rankings
Ranking Based On Selection :8
Toxicology
physiologically relevant cell bioassays
pesticides
natural compounds
endocrine disruption/cancers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,914
8,352
0.442
* Total Citation Counts Rankings
Ranking Based On Selection :9
Histaminergic receptors
Glaucoma
CA IX Inhibitors
inflammation
nitric oxide
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,256
4,270
0.234
* Total Citation Counts Rankings
Ranking Based On Selection :10
precision medicine
precision environmental health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,868
2,709
0.152
* Total Citation Counts Rankings
Ranking Based On Selection :11
tissue engineering
stem cells
genome editing
heart failure
translation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,735
8,584
0.484
* Total Citation Counts Rankings
Ranking Based On Selection :12
Experimental pharmacology and toxicology
Oxidative stress in health and disease
NAFLD
Vitamin C
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,064
8,163
0.508
* Total Citation Counts Rankings
Ranking Based On Selection :13
annexin A1
inflammation
cancer
mutagenesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,631
553
0.038
* Total Citation Counts Rankings
Ranking Based On Selection :14
G-protein coupled receptors
prostanoid receptors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,505
1,500
0.103
* Total Citation Counts Rankings
Ranking Based On Selection :15
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,446
6,955
0.481
* Total Citation Counts Rankings
Ranking Based On Selection :16
Toxicology
Pharmacology
Life Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,016
2,367
0.169
* Total Citation Counts Rankings
Ranking Based On Selection :17
toxicology
drug metabolism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,141
1,323
0.101
* Total Citation Counts Rankings
Ranking Based On Selection :18
neuroendocrinology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,137
856
0.071
* Total Citation Counts Rankings
Ranking Based On Selection :19
toxicology
pharmacology
liver
adverse drug reactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,090
5,727
0.516
* Total Citation Counts Rankings
Ranking Based On Selection :20
pharmacology
toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,916
3,982
0.365
* Total Citation Counts Rankings
Ranking Based On Selection :21
arrhythmias
calcium handling
atria
myocytes
atrial fibrillation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,476
5,307
0.507
* Total Citation Counts Rankings
Ranking Based On Selection :22
Immunotoxicology
developmental neuroimmunotoxicology
environmental contaminants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,617
8,772
0.826
* Total Citation Counts Rankings
Ranking Based On Selection :23
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,254
1,696
0.165
* Total Citation Counts Rankings
Ranking Based On Selection :24
Epigenetics
Multi-omics
Histone modifications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,988
3,225
0.323
* Total Citation Counts Rankings
Ranking Based On Selection :25
Pharmacology and Toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,721
4,590
0.472
* Total Citation Counts Rankings
Rankings
11,110
2
2
Ranking Based On Selection: 1
José María Gutiérrez
Universidad de Costa Rica
San José, Costa Rica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,791
19,059
0.407
Toxinology
Experimental Pathology
Antivenoms
* Total Citation Counts Rankings
Rankings
11,699
282
20
Ranking Based On Selection: 2
A Bast
Maastricht University
Maastricht, Netherlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,310
12,242
0.270
Toxicology
Pharmacology
Nutrition
* Total Citation Counts Rankings
Rankings
14,211
15
1
Ranking Based On Selection: 3
Kamil Kuca
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,227
27,090
0.673
toxicology-pharmacology-chemistry
health economy
Science Management
Security and Military Research
Technology Transfer in Biomedicine
* Total Citation Counts Rankings
Rankings
22,208
10,226
2
Ranking Based On Selection: 4
Gary M Williams
New York Medical College
Valhalla, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,209
4,827
0.160
toxicology
risk assessment
carcinogenicity
* Total Citation Counts Rankings
Rankings
22,919
108
9
Ranking Based On Selection: 5
Olavi Pelkonen
University of Oulu
Oulu, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,655
5,786
0.195
Pharmacology
Toxicology
* Total Citation Counts Rankings
Rankings
39,951
1,730
39
Ranking Based On Selection: 6
Alexander Pfeifer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,289
6,377
0.314
metabolism
pharmacology
energy expenditure
obesity
* Total Citation Counts Rankings
Rankings
43,732
19,139
49
Ranking Based On Selection: 7
Ruiwen Zhang
University of Houston
Houston, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,965
5,885
0.310
cancer
pharmacology
pharmaceutical sciences
* Total Citation Counts Rankings
Rankings
43,896
1,919
2
Ranking Based On Selection: 8
J Thomas Sanderson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,914
8,352
0.442
Toxicology
physiologically relevant cell bioassays
pesticides
natural compounds
endocrine disruption/cancers
* Total Citation Counts Rankings
Rankings
46,135
1,789
52
Ranking Based On Selection: 9
Emanuela Masini
Università degli Studi di Firenze
Firenze, Italy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,256
4,270
0.234
Histaminergic receptors
Glaucoma
CA IX Inhibitors
inflammation
nitric oxide
* Total Citation Counts Rankings
Rankings
47,524
20,613
18
Ranking Based On Selection: 10
David W Hein
University of Louisville
Louisville, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,868
2,709
0.152
precision medicine
precision environmental health
* Total Citation Counts Rankings
Rankings
48,019
2,065
16
Ranking Based On Selection: 11
Wolfram Hubertus Zimmermann
Georg-August-Universität Göttingen
Göttingen, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,735
8,584
0.484
tissue engineering
stem cells
genome editing
heart failure
translation
* Total Citation Counts Rankings
Rankings
54,836
510
143
Ranking Based On Selection: 12
Jens Lykkesfeldt
University of Copenhagen
Copenhagen, Denmark
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,064
8,163
0.508
Experimental pharmacology and toxicology
Oxidative stress in health and disease
NAFLD
Vitamin C
* Total Citation Counts Rankings
Rankings
61,989
26,173
27
Ranking Based On Selection: 13
Fusao Hirata
Wayne State University
Detroit, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,631
553
0.038
annexin A1
inflammation
cancer
mutagenesis
* Total Citation Counts Rankings
Rankings
62,704
26,426
180
Ranking Based On Selection: 14
John W Regan
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,505
1,500
0.103
G-protein coupled receptors
prostanoid receptors
* Total Citation Counts Rankings
Rankings
63,064
26,552
25
Ranking Based On Selection: 15
Nirmala Parajuli
University of Arkansas for Medical Sciences
Little Rock, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,446
6,955
0.481
* Total Citation Counts Rankings
Rankings
65,653
2,880
37
Ranking Based On Selection: 16
Horst Spielmann
Freie Universität Berlin
Berlin, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,016
2,367
0.169
Toxicology
Pharmacology
Life Sciences
* Total Citation Counts Rankings
Rankings
71,334
3,166
400
Ranking Based On Selection: 17
Allan Okey
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,141
1,323
0.101
toxicology
drug metabolism
* Total Citation Counts Rankings
Rankings
78,638
32,202
214
Ranking Based On Selection: 18
William Crowley
University of Utah
Salt Lake City, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,137
856
0.071
* Total Citation Counts Rankings
Rankings
87,736
7,382
67
Ranking Based On Selection: 19
Christopher E Goldring
University of Liverpool
Liverpool, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,090
5,727
0.516
toxicology
pharmacology
liver
adverse drug reactions
* Total Citation Counts Rankings
Rankings
89,440
3,526
162
Ranking Based On Selection: 20
Patrizia Hrelia
Università di Bologna
Bologna, Italy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,916
3,982
0.365
pharmacology
toxicology
* Total Citation Counts Rankings
Rankings
93,861
4,087
33
Ranking Based On Selection: 21
Niels Voigt
Georg-August-Universität Göttingen
Göttingen, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,476
5,307
0.507
arrhythmias
calcium handling
atria
myocytes
atrial fibrillation
* Total Citation Counts Rankings
Rankings
92,453
37,118
15
Ranking Based On Selection: 22
Jamie Dewitt
East Carolina University
Greenville, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,617
8,772
0.826
Immunotoxicology
developmental neuroimmunotoxicology
environmental contaminants
* Total Citation Counts Rankings
Rankings
96,229
4,320
511
Ranking Based On Selection: 23
John Peter Mcpherson
University of Toronto
Toronto, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,254
1,696
0.165
* Total Citation Counts Rankings
Rankings
99,145
39,419
45
Ranking Based On Selection: 24
Kangling Zhang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,988
3,225
0.323
Epigenetics
Multi-omics
Histone modifications
* Total Citation Counts Rankings
Rankings
102,226
1,341
2
Ranking Based On Selection: 25
R Vijayaraghavan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,721
4,590
0.472
Pharmacology and Toxicology