Publications by authors named "Hellen Oketch-Rabah"

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From Vision to Reality: Five Years of the Botanical Safety Consortium.
Constance A Mitchell, Amy L Roe, Scott Auerbach, Cécile Bascoul, Michelle Embry, Hellen Oketch-Rabah

Pharm Biol· December 2025

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An exploratory evaluation of the interaction risk between herbal products and pharmaceutical medicines used concurrently for disease management in Blantyre, Malawi.
Kumbukani K Nyirenda, John Mponda, Ibrahim Chikowe, Esther Kawonga, Nellie Twatasha Gomani Phiri, Hellen Oketch-Rabah

Pharm Biol· December 2025

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Editorial: Global excellence in ethnopharmacology: Africa.
Hellen Oketch-Rabah, David R Katerere

Front Pharmacol· June 2025

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Developing a Screening Strategy to Identify Hepatotoxicity and Drug Interaction Potential of Botanicals.
Amy L Roe, Julie Krzykwa, Angela I Calderón, Cécile Bascoul, Bill J Gurley, Hellen Oketch-Rabah

J Diet Suppl· December 2024

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Improving the rigor and utility of botanical toxicity studies: Recommended resources.
Deval Patel, Barbara C Sorkin, Constance A Mitchell, Michelle R Embry, Sharline Rina-Kong, Hellen Oketch-Rabah

Regul Toxicol Pharmacol· October 2023

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Potential pharmacokinetic interactions with concurrent use of herbal medicines and a ritonavir-boosted COVID-19 protease inhibitor in low and middle-income countries.
Dallas J Smith, Huichang Bi, Josias Hamman, Xiaochao Ma, Constance Mitchell, Hellen Oketch-Rabah

Front Pharmacol· July 2023

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Considerations for determining safety of probiotics: A USP perspective.
Amy L Roe, Marie-Eve Boyte, Chris A Elkins, Virginia S Goldman, James Heimbach, Hellen Oketch-Rabah

Regul Toxicol Pharmacol· December 2022

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Understanding plant to extract ratios in botanical extracts.
Maria Monagas, Thomas Brendler, Josef Brinckmann, Steven Dentali, Stefan Gafner, Hellen Oketch-Rabah

Front Pharmacol· September 2022

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United States Pharmacopeia comprehensive safety review of Styphnolobium japonicum flower and flower bud.
Emily Madden, Caleb McLachlan, Hellen Oketch-Rabah, Angela I Calderón

Phytother Res· May 2022

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What Should Clinicians Know About Dietary Supplement Quality?
Marissa Chaet Brykman, Virginia Streusand Goldman, Nandakumara Sarma, Hellen A Oketch-Rabah, Deborah Biswas

AMA J Ethics· May 2022

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Neuroactive Botanicals.
Hellen A. Oketch-Rabah

Curr Neuropharmacol· January 2022

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Multi-Criteria Decision Analysis Model for Assessing the Risk from Multi-Ingredient Dietary Supplements (MIDS).
Hellen A Oketch-Rabah, Mary L Hardy, Allison P Patton, Mei Chung, Nandakumara D Sarma

J Diet Suppl· September 2021

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Safety of Cranberry: Evaluation of Evidence of Kidney Stone Formation and Botanical Drug-Interactions.
Emily Madden, Caleb McLachlan, Hellen Oketch-Rabah, Angela I Calderón

Planta Med· August 2021

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United States Pharmacopeia (USP) Safety Review of -Aminobutyric Acid (GABA).
Hellen A Oketch-Rabah, Emily F Madden, Amy L Roe, Joseph M Betz

Nutrients· August 2021

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United States Pharmacopeia (USP) comprehensive review of the hepatotoxicity of green tea extracts.
Hellen A Oketch-Rabah, Amy L Roe, Cynthia V Rider, Herbert L Bonkovsky, Gabriel I Giancaspro

Toxicol Rep· February 2020

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United States Pharmacopeia Safety Review of Willow Bark.
Hellen A Oketch-Rabah, Robin J Marles, Scott A Jordan, Tieraona Low Dog

Planta Med· November 2019

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Safety of Guarana Seed as a Dietary Ingredient: A Review.
Madison Patrick, Hyunjin A Kim, Hellen Oketch-Rabah, Robin J Marles, Amy L Roe

J Agric Food Chem· October 2019

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Cinnamon and Cassia Nomenclature Confusion: A Challenge to the Applicability of Clinical Data.
Hellen A Oketch-Rabah, Robin J Marles, Josef A Brinckmann

Clin Pharmacol Ther· September 2018

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Challenges and Opportunities for Improving the Safety Assessment of Botanical Dietary Supplements: A United States Pharmacopeia Perspective.
Hellen A Oketch-Rabah, Amy L Roe, Kristi Muldoon-Jacobs, Gabriel I Giancaspro

Clin Pharmacol Ther· September 2018

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Naturally complex: Perspectives and challenges associated with Botanical Dietary Supplement Safety assessment.
Kelly A Shipkowski, Joseph M Betz, Linda S Birnbaum, John R Bucher, Paul M Coates, Hellen Oketch-Rabah

Food Chem Toxicol· August 2018

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Therapeutic Perspectives on Chia Seed and Its Oil: A Review.
John Parker, Amanda N Schellenberger, Amy L Roe, Hellen Oketch-Rabah, Angela I Calderón

Planta Med· July 2018

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Quality specifications for articles of botanical origin from the United States Pharmacopeia.
Cuiying Ma, Hellen Oketch-Rabah, Nam-Cheol Kim, Maria Monagas, Anton Bzhelyansky

Phytomedicine· June 2018

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US Pharmacopeial Convention safety evaluation of menaquinone-7, a form of vitamin K.
Robin J Marles, Amy L Roe, Hellen A Oketch-Rabah

Nutr Rev· July 2017

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The Importance of Quality Specifications in Safety Assessments of Amino Acids: The Cases of l-Tryptophan and l-Citrulline.
Hellen A Oketch-Rabah, Amy L Roe, Bill J Gurley, James C Griffiths, Gabriel I Giancaspro

J Nutr· December 2016

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Safety and performance benefits of arginine supplements for military personnel: a systematic review.
James R Brooks, Hellen Oketch-Rabah, Tieraona Low Dog, Dennis K J Gorecki, Marilyn L Barrett

Nutr Rev· November 2016

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