What is the difference between Benadryl and Unisom?
By
Dr Milena Locci de Oliveira (PhD)
Author bio
Dr Milena Locci de Oliveira is a Pharmacist and Doctor of Philosophy in Sciences from the University of São Paulo (USP). She has experience in microbiology, analytical toxicology, and clinical pharmacokinetics. She writes and reviews content on these topics.
Dr Milena’s Highlights:
-PhD in Sciences, University of São Paulo, Brazil, 2019.
-University College London (UCL) – Semester of remote collaboration in the areas of Pharmacometrics and Population Pharmacokinetics, 2018.
-Bachelor in Biochemical Pharmacy, University of São Paulo, Brazil, 2013.
“Science can be translated, and it is essential that everyone has access to quality information to make informed decisions” – Dr Milena Oliveira, PhD.
Professional Experience:
With a decade-long career as a researcher, Dr Milena has amassed extensive experience in conducting research projects in microbiology, analytical toxicology, and clinical pharmacokinetics.
Her expertise also extends to the preparation of technical and scientific reports, literature reviews, data analysis, and scientific communication, both oral and written.
Dr Milena has served as a Clinical Pharmacist, providing expert supervision and guidance to teams during the challenging times of the COVID-19 pandemic, particularly in the ICUs of two reference hospitals for patient hospitalization.
In her most recent role, Dr Milena worked on the implementation of the deliberatives of the São Paulo State Government Pharmaceutical Assistance Coordination. These decisions were aimed at ensuring medication access within the Unified Health System.
A widely multidisciplinary background enabled Dr Milena to become a professional capable of integrating scientific knowledge into private initiatives, education, and healthcare, delivering consistent services in patient safety and population health.
Professional Memberships & Affiliations:
Dr Milena Oliveira is a member of the Regional Council of Pharmacy of the State of São Paulo, Brazil.
Education:
-PhD in Sciences, University of São Paulo, Brazil, 2019.
-University College London (UCL) – Semester of remote collaboration, 2018.
-Bachelor in Biochemical Pharmacy, University of São Paulo, Brazil, 2013.
Relevant Published Work & Citations:
Oliveira ML de, Rocha A, Nardotto GHB, Pippa LF, Simões BP, Lanchote VL. Analysis of daunorubicin and its metabolite daunorubicinol in plasma and urine with application in the evaluation of total, renal and metabolic formation clearances in patients with acute myeloid leukemia. Journal of Pharmaceutical and Biomedical Analysis. Nov 2020. 191:113-124.
Abstracts. CPT: Pharmacometrics & Systems Pharmacology. 2020 Nov; 9 (S1).
Pippa LF, Oliveira ML de, Rocha A, de Andrade JM, Lanchote VL. Total, renal and hepatic clearances of doxorubicin and formation clearance of doxorubicinol in patients with breast cancer: Estimation of doxorubicin hepatic extraction ratio. Journal of Pharmaceutical and Biomedical Analysis. 2020 Jun 5; 185:113-231.
Godoy ALPC, De Jesus C, De Oliveira ML, Rocha A, Pereira MPM, Larangeira DF, Lanchote VL, Barrouin-Melo SM. Determination of Allopurinol and Oxypurinol in Dogs Plasma by High-Performance Liquid Chromatography with an Ultraviolet Detector: Application for Pharmacokinetic Studies. J Chromatogr Sep Tech. 2017; 8 (4).
Clímaco EC, Oliveira ML de, Pitondo-Silva A, Oliveira MG, Medeiros M, Lincopan N, et al. Clonal complexes 104, 109 and 113 playing a major role in the dissemination of OXA-carbapenemase-producing Acinetobacter baumannii in Southeast Brazil. Infection, Genetics and Evolution. 2013 Oct;19:127–33.
Conference Papers:
Oliveira, M. L.; NARDOTTO, G. H. B.; PIPPA, L. F.; ROCHA, A.; SIMOES, B. P.; LANCHOTE, V. L. . Daunorubicin metabolism and urinary excretion in patients with acute myeloid leukemia. In: 84th Annual Meeting of the German Society for Experimental and Clinical Pharmacology and Toxicology (DGPT) and the 20th Annual Meeting of the Association of the Clinical Pharmacology Germany (VKliPha), 2018, Göttingen. Naunyn-Schmiedeberg’s Arch Pharmacol, 2018. v. 391. p. S76-S76.
Oliveira, M. L.; NARDOTTO, G. H. B. ; ROCHA, A. ; SIMOES, B. P. ; LANCHOTE, V. L. . The low contribution of urinary excretion in the elimination of daunorubicin and its metabolite daunorubicinol in patients with acute myeloid leukemia. In: 49th Brazilian Congress of Pharmacology and Experimental Therapeutics., 2017, Ribeirão Preto. Livro de Resumos, 2017. p. 64-64.
Oliveira, M. L.; PIPPA, L. F. ; ROCHA, A. ; SIMOES, B. P. ; LANCHOTE, V. L. . Quantification of daunorubicin and its metabolite daunorubicinol in human plasma by LC-MS/MS. In: I International Meeting of Environmental Health and Toxicology (IMEHTOX), 2016, Ribeirão Preto. Livro de Resumos, 2016.
Oliveira, M. L.; Clímaco, E.C. ; OLIVEIRA, M. G. ; Lincopan, N. ; Darini A.L.C. . PFGE typing of Carbapenem-Resistant Acinetobacter baumannii isolated from different University Hospitals. In: V International Postgraduate and Research Symposium, 2012.
Clímaco, E.C. ; SILVA, A. P. ; Oliveira, M. L. ; OLIVEIRA, M. G. ; Lincopan, N. ; Darini A.L.C. Relação clonal entre linhagens de Acinetobacter baumannii produtoras de carbapenemases da família OXA em quatro hospitais no Brasil. In: XXI Latin American Congress of Microbiology, 2012, Santos. XXI Latin American Congress of Microbiology, 2012.
Oliveira, M. L.; Clímaco, E.C. ; OLIVEIRA, M. G. ; Darini A.L.C. . Dissemintion of OXA carbapenemases genes in carbapenem-resistant Acinetobacter baumannii in University Hospital of Juiz de Fora, MG. In: 8th CIFARP – International Congress of Pharmaceutical Sciences, 2011, Ribeirão Preto.
Clímaco, E.C. ; Oliveira, M. L. ; OLIVEIRA, M. G. ; Darini A.L.C. . Avaliação do sequenciamento parcial do gene rpoB e de seus flanqueadores para identificação de espécies de Acinetobacter na rotina laroratorial. In: 2° International Symposium on Clinical Microbiology, 2010, Florianópolis.
You can view some of Dr Milena’s work below and links to her professional profile.
Linkedin: https://www.linkedin.com/in/dra-milena-locci-de-oliveira-28986042/?locale=en_US
ResearchGate: https://www.researchgate.net/profile/Milena-Oliveira-6
Escavador: https://www.escavador.com/sobre/5394254/milena-locci-de-oliveira
Lattes: https://buscatextual.cnpq.br/buscatextual/busca.do
Scopus: https://www.scopus.com/authid/detail.uri?authorId=57199779361
Scholar: https://scholar.google.com/citations?view_op=list_works&hl=pt-BR&user=1YUBDIQAAAAJ
What is the difference between Benadryl and Unisom?
The difference between Benadryl and Unisom is that they contain different active ingredients. Benadryl contains Diphenhydramine, whereas Unisom contains Doxylamine. (1,2)
Although Benadryl and Unisom contain different active drugs, they do work in almost the same way. Both are first-generation antihistamines and cause sedation – which is why they are added in several nighttime cold and flu formulations (1,2).
You can take either one of them, whichever suits you best. However, they should never be used at the same time because of additive side effects. If you think one antihistamine is not working efficiently to make your symptoms go away, talk to your healthcare provider.
It is not recommended to take two antihistamines together, no matter which ones they are. If your condition demands it and your doctor thinks you can benefit from not one, but two antihistamines, he/she will adjust the doses and guide you accordingly.
Never take Benadryl with another antihistamine-containing OTC formulation like NyQuil or ZzzQuil, which also contains a sedative antihistamine. (3). If you are not sure what active ingredients are present in common cold and flu OTC medications, please talk to your pharmacist.
How to choose between Benadryl and Unisom?
To choose between them, consider your specific needs. If you’re experiencing allergies and occasional sleeplessness, Benadryl may be a suitable option, providing relief for both issues.
If your main concern is sleeplessness, Unisom might be a better choice due to its stronger sedative effects (1,2). However, always consult with a healthcare provider before using any medication, especially if you have any underlying health conditions or are taking other medications.
can help you make an informed decision based on your individual needs and health status. It is not generally advisable to keep taking OTC sleep aids without consulting your doctor.
Final words
In conclusion, the main difference between Benadryl and Unisom lies in their active ingredients. They both work as sedatives and antihistamines, but they contain different drugs.
It is crucial to choose the one that best suits your specific needs, whether it’s for allergy relief with occasional sleeplessness or primarily for sleep aid.
However, never take both medications together, and always seek advice from a healthcare provider before using any medication, especially if you have other health conditions or are taking other drugs.
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References
1.-
LABEL: BENADRYL- diphenhydramine hydrochloride tablet, film coated. DailyMed [Internet]. Available from: https://dailymed.nlm.nih.gov/dailymed/getFile.cfm?setid=702f9786-7ce9-43e4-921d-e1db09612127&type=pdf
2.-
LABEL: UNISOM SLEEPTABS- doxylamine succinate tablet. DailyMed [Internet]. Available from: https://dailymed.nlm.nih.gov/dailymed/getFile.cfm?setid=f591d52f-5610-4517-a96f-1ed63deb00bc&type=pdf
3.-
LABEL: VICKS NYQUIL COLD AND FLU- acetaminophen, dextromethorphan hydrobromide, and doxylamine succinate capsule, liquid filled. DailyMed [Internet]. Available from: https://dailymed.nlm.nih.gov/dailymed/getFile.cfm?setid=620bc3dc-099b-40bd-be22-e4c3f9c8e09d&type=pdf
