Citation Rankings
Highly Cited Researchers

Medical and Health Sciences Highly Cited Researchers 198 Scientists Citation in South Africa Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list 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.

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Total 198 scientists
* Total Citation Counts Rankings
Ranking Based On Selection: 2
South Africa
Gary Maartens
HIV
tuberculosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,509
9,788
0.369
* Total Citation Counts Rankings
Ranking Based On Selection: 3
South Africa
Yahya E. Choonara
Targeted Drug Delivery
Nanomedicines
Stimuli-Responsive Biomaterials
Molecular Pharma-Engineered Regenerative Medicines
Drug
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,524
9,484
0.611
* Total Citation Counts Rankings
Ranking Based On Selection: 4
South Africa
Thavendran Govender
Drug Discovery
Synthetic Chemistry
Brain Diseases
Drug Resistant Bacteria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,751
9,712
0.658
* Total Citation Counts Rankings
Ranking Based On Selection: 6
South Africa
Lisa Du Toit
Pharmaceutical Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,933
6,806
0.570
* Total Citation Counts Rankings
Ranking Based On Selection: 7
South Africa
Namrita Lall
Pharmacology
toxicology
oral care
tuberculosis
cancer and cosmeceuticals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,468
4,783
0.505
* Total Citation Counts Rankings
Ranking Based On Selection: 8
South Africa
Daniel Gyamfi Amoako
Pathogenomics
Applied Bioinformatics
Molecular biology
Pharmacoinformatics
Data analytics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,100
7,958
0.982
* Total Citation Counts Rankings
Ranking Based On Selection: 9
South Africa
BH Harvey
Animal models
Psychopharmacology
Neuroscience
Behavior
Psychiatry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,063
3,186
0.395

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* Total Citation Counts Rankings
Ranking Based On Selection: 11
South Africa
Josias Hamman
Pharmaceutics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,668
3,163
0.412
* Total Citation Counts Rankings
Ranking Based On Selection: 12
South Africa
Karen Barnes
Malaria
Clinical Pharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,774
1,988
0.293
* Total Citation Counts Rankings
Ranking Based On Selection: 13
South Africa
Andrew Lofts Gray
Pharmacy
Pharmacology
Medicines Policy
Rational Use
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,378
2,216
0.347
* Total Citation Counts Rankings
Ranking Based On Selection: 14
South Africa
Collet Dandara
Genetics
Genomics
Pharmacogenomics
Precision Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,148
3,698
0.601
* Total Citation Counts Rankings
Ranking Based On Selection: 16
South Africa
Blessing A. Aderibigbe
drug delivery systems
organic synthesis
polymer-drug conjugates
wound dressing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,780
5,112
0.884
* Total Citation Counts Rankings
Ranking Based On Selection: 17
South Africa
Lubbe Wiesner
Pharmacology
Bioanalytics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,759
3,999
0.694
* Total Citation Counts Rankings
Ranking Based On Selection: 18
South Africa
Jeanetta Du Plessis
Transdermal and topical drug delivery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,226
2,420
0.463
* Total Citation Counts Rankings
Ranking Based On Selection: 19
South Africa
Vanessa Steenkamp
herbals
traditional medicine
toxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,194
2,043
0.393
* Total Citation Counts Rankings
Ranking Based On Selection: 20
South Africa
Connie Medlen / Cej Van Rensburg
Pharmacology
Immunology
drug development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,073
1,098
0.216
* Total Citation Counts Rankings
Ranking Based On Selection: 21
South Africa
Tanuja N Gengiah
HIV
TB
Adherence
pharmacology
drug interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,064
963
0.190
* Total Citation Counts Rankings
Ranking Based On Selection: 22
South Africa
AF Kotze
Pharmaceutics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,000
791
0.158
* Total Citation Counts Rankings
Ranking Based On Selection: 23
South Africa
Roderick B Walker
Formulation
product development
quality control
pharmaceutical analysis
drug delivery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,183
1,686
0.403
* Total Citation Counts Rankings
Ranking Based On Selection: 25
South Africa
Paolo Denti
Pharmacometrics
Clinical Pharmacology
Modelling and simulation
Tuberculosis
HIV
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,979
2,481
0.624
* Total Citation Counts Rankings
Rankings
3,150
South Africa
8
5
Ranking Based On Selection: 1
Naomi Sharlene Levitt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
101,138
50,955
0.504
* Total Citation Counts Rankings
Rankings
27,742
South Africa
77
23
Ranking Based On Selection: 2
Gary Maartens
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,509
9,788
0.369
* Total Citation Counts Rankings
Rankings
58,392
South Africa
196
29
Ranking Based On Selection: 3
Yahya E. Choonara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,524
9,484
0.611
Targeted Drug Delivery
Nanomedicines
Stimuli-Responsive Biomaterials
Molecular Pharma-Engineered Regenerative Medicines
Drug
* Total Citation Counts Rankings
Rankings
62,474
South Africa
215
1
Ranking Based On Selection: 4
Thavendran Govender
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,751
9,712
0.658
Drug Discovery
Synthetic Chemistry
Brain Diseases
Drug Resistant Bacteria
* Total Citation Counts Rankings
Rankings
81,055
South Africa
276
60
Ranking Based On Selection: 5
Helen Mcilleron
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,001
5,243
0.437
* Total Citation Counts Rankings
Rankings
81,637
South Africa
281
42
Ranking Based On Selection: 6
Lisa Du Toit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,933
6,806
0.570
* Total Citation Counts Rankings
Rankings
107,060
South Africa
383
29
Ranking Based On Selection: 7
Namrita Lall
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,468
4,783
0.505
Pharmacology
toxicology
oral care
tuberculosis
cancer and cosmeceuticals
* Total Citation Counts Rankings
Rankings
127,504
South Africa
489
42
Ranking Based On Selection: 8
Daniel Gyamfi Amoako
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,100
7,958
0.982
Pathogenomics
Applied Bioinformatics
Molecular biology
Pharmacoinformatics
Data analytics
* Total Citation Counts Rankings
Rankings
128,158
South Africa
494
16
Ranking Based On Selection: 9
BH Harvey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,063
3,186
0.395
Animal models
Psychopharmacology
Neuroscience
Behavior
Psychiatry
* Total Citation Counts Rankings
Rankings
130,293
South Africa
508
7
Ranking Based On Selection: 10
Katharigatta Narayanaswamy Venugopala
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,944
5,885
0.741

360° Institutional Performance & Benchmarking Click Here for Live Demo 

Gain data-driven strategic insights into your institution’s academic performance, global positioning, and competitive strengths through advanced analysis and benchmarking

with 20 similarly ranked institutions at City, Country, Region, and Global levels. 

* Total Citation Counts Rankings
Rankings
135,480
South Africa
537
19
Ranking Based On Selection: 11
Josias Hamman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,668
3,163
0.412
* Total Citation Counts Rankings
Rankings
154,479
South Africa
605
146
Ranking Based On Selection: 12
Karen Barnes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,774
1,988
0.293
* Total Citation Counts Rankings
Rankings
164,381
South Africa
652
55
Ranking Based On Selection: 13
Andrew Lofts Gray
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,378
2,216
0.347
* Total Citation Counts Rankings
Rankings
170,487
South Africa
684
165
Ranking Based On Selection: 14
Collet Dandara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,148
3,698
0.601
* Total Citation Counts Rankings
Rankings
177,416
South Africa
721
99
Ranking Based On Selection: 15
Saneesh Kumar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,910
2,202
0.373
* Total Citation Counts Rankings
Rankings
181,478
South Africa
741
9
Ranking Based On Selection: 16
Blessing A. Aderibigbe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,780
5,112
0.884
drug delivery systems
organic synthesis
polymer-drug conjugates
wound dressing
* Total Citation Counts Rankings
Rankings
182,119
South Africa
746
180
Ranking Based On Selection: 17
Lubbe Wiesner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,759
3,999
0.694
* Total Citation Counts Rankings
Rankings
200,153
South Africa
828
33
Ranking Based On Selection: 18
Jeanetta Du Plessis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,226
2,420
0.463
* Total Citation Counts Rankings
Rankings
201,374
South Africa
839
73
Ranking Based On Selection: 19
Vanessa Steenkamp
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,194
2,043
0.393
* Total Citation Counts Rankings
Rankings
206,099
South Africa
861
76
Ranking Based On Selection: 20
Connie Medlen / Cej Van Rensburg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,073
1,098
0.216
* Total Citation Counts Rankings
Rankings
206,453
South Africa
864
74
Ranking Based On Selection: 21
Tanuja N Gengiah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,064
963
0.190
* Total Citation Counts Rankings
Rankings
209,042
South Africa
873
37
Ranking Based On Selection: 22
AF Kotze
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,000
791
0.158
* Total Citation Counts Rankings
Rankings
246,953
South Africa
1,044
21
Ranking Based On Selection: 23
Roderick B Walker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,183
1,686
0.403
Formulation
product development
quality control
pharmaceutical analysis
drug delivery
* Total Citation Counts Rankings
Rankings
257,895
South Africa
1,103
246
Ranking Based On Selection: 24
Karen Cohen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,990
1,749
0.438
* Total Citation Counts Rankings
Rankings
258,481
South Africa
1,104
247
Ranking Based On Selection: 25
Paolo Denti
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,979
2,481
0.624
Pharmacometrics
Clinical Pharmacology
Modelling and simulation
Tuberculosis
HIV
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