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Toxicology is the study of poisons. The term “Toxicology” is derived from the Greek words toxicos "poisonous" and logos and it is a branch pharmacology concerned with the study of the adverse effects of chemicals on living organisms.  It is the study of symptoms, mechanisms, treatments and detection of poisoning. The sub-disciplines of toxicology include Toxigenomics, Aquatic toxicology, Chemical (pharmaceutical toxicology), Ecotoxicology, Environmental toxicology, Food toxicology, Torensic toxicology and Medical toxicology.


Prof. James M. Mbaria

BVM, MSC., PhD (University of Nairobi)

Prof. Mbaria's research interest is pharmacology and toxicology of traditionally used medicinal plants, environmental toxicology and regulatory pharmacology and toxicology. Currently I am a collaborator in many
ongoing multi-institutional and multidisciplinary research projects. View Prof. Mbaria's profile
Teaching and Technical Staff

Prof. T. E. Maitho

BVM, MSc (UoN), PhD (University of London)

Prof. Maitho has wide experience in Veterinary profession, Consultancy, University research, training and administration and community service. Prof. Maitho has conducted important research in clinical pharmacology, pharmacokinetics, evaluation of herbal medicines, phenylbutazone, phenytoin, pesticide residues in food and environment, Fluoride, Pyrethrins, aflatoxins, paraquat and toxicological evaluation of food. View Prof. Maitho's profile

Dr. L. W. Kanja

B.Sc., M.Sc. PhD (University of Nairobi)

My research work and experience on persistent organic compounds has been of immense contribution to scientific information and data in Kenya. This has also upgraded our laboratory to an international standard in residue analysis.
I was the lead consultant of National Chemical Profiles and National Inventory Profiles on Persistent Organic Pollutants (POPs) project for National Environmental Management Authority (NEMA). 2004/05 and concurrently National Coordinator of the ongoing WHO/UNEP Global Survey of human milk for POPs in Kenya (2009-2011 and 2013). View Dr. Kanja's profile

Dr. Isaac Mapenay


(University of Nairobi)

Dr. Mapenay’s research interests include: Agar diffusion and broth dilution (MIC) microbiological assay for antibiotics; Experimental infection models & Drug trial protocols (Efficacy, potency, clinical drug trials and safety/ toxicity; Pharmaco-epidemiology of trypanocidal and antimicrobial resistance in Kenya; Pharmocokinetic drug modelling techniques; Application and troubleshooting of scientific instruments: High performance liquid chromatography (HPLC); Gas chromatography (GC), Atomic Absorption Spectroscopy (AAS); Inductive coupled plasma (ICP); Infra Red spectroscopy (IS); Electron Microscopy (EM); Nuclear Magnetic Resonance (NMR); Molecular biology techniques: DNA Plamid isolation and Profiling and Polymerase Chain Reaction (PCR)-DNA fingerprinting; Antimicrobial assay levels in animal tissues using HPLC analysis; Toxicity testing using laboratory animal models; Acute (LD 50), Skin sensitivity, eye irritation, allergenicity tests. View Dr. Mapenay's profile


Dr. J. M. Kahunyo

BVM, MSc (University of Nairobi)



Dr. Kahunyo has interests in Pharmacology and Toxicology. Pesticides and, mycotoxins. He has been widely involved in community service, especially as a Board member in CHUNA SACCO, a welfare organization mainly for U.O.N staff in which he has represented Kabete Campus from 1996 to-date and during this tenure he has served as the organization’s Chairman for eleven (11) years (1996- 2005; 2009- 2011). He was elected to the Group Board of the Co-operative Bank of Kenya in 2005 and continues to serve on the said Board. View Dr. Kahunyo's profile


Dr. Joseph M. Nguta

BVM, MSc, PhD (University of Nairobi) 

Dr. Nguta has keen interest on Toxicological and Pharmacological evaluation of Botanical Medicines, Safety Assessment of Phytomedicines and Pharmacovigilance, Trace elements in pastures and biological tissues,Bioinformatics/Molecular targets for drug research and development, Infection biology/Malaria chemotherapy using Herbal Remedies, Ethno pharmacology as an interdisciplinary science View Dr. Nguta' profile


Dr. G. O. Aboge

BVM, MSc (UoN) Ph.D. from Gifu University)

Dr. Aboge's work involved identification and validation of molecular drug targets of antifolate and 1-deoxy-D-xylulose 5-phosphate (DOXP) based drugs, as well as inhibitors of M17Leucine aminopeptidase and inosine monophosphate dehydrogenase enzymes of Babesia in comparison with Plasmodium species. View Dr. Aboge's profile

Dr. M. Oguna

BVM, MSc. (University of Nairobi)

Ongoing PhD (University of Nairobi)


Dr. Oguna is currently working on doctorate degree in the field of anthelmintic resistance in sheep. Have great passion for advocacy for mental health being a mental health consumer. Have won several awards for this including nominations for Woman of the Year (2003) and American Medal of Honour (2003). View Dr. Oguna's profile

Mr. F. K. Gitau

Medical Technologist (Technical University of Kenya)

Mr. Gitau is interested in microbiology, pharmacology and toxicology. View Mr. Gitau's profile

Mrs. Lucy Mwangi

HND (Technical university of Kenya)

Lucy is interested in analytical chemistry, pharmacology and toxicology. View Lucy's profile
On-going Projects  

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Past Projects  

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Degree Course  

Bachelor in Veterinary Medicine

BSc Biochemistry

Masters in Pharmacology

Masters in Natural Products

Masters in Veterinary Public Health

Carrier Opportunities

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MSc in Veterinary Pharmacology and Toxicology.pdf