Does Amoxicillin liquid expire?
By
Dr Drielli Vital-Fujii (PhD)
Author bio
Dr Drielli Vital-Fujii, PhD, is a Pharmacist with expertise in Drug Design and Development, Enzymes, Molecular Modelling, and Photodynamic Therapy. She writes and reviews content on these topics.
Dr Drielli Vital-Fujii’s Highlights:
- Postdoctoral fellow at the Department of Biochemistry at the University of São Paulo, emphasizing therapy of neglected diseases using light.
- PhD in Pharmaceutical Sciences focusing on drug design and development at the Faculty of Pharmaceutical Sciences of the University of São Paulo.
- Six months as an international researcher at the Center for Discovery and Innovation in Parasitic Diseases (University of California San Diego)
- Master’s degree in Pharmaceutical Sciences focusing on drug design and development at the Faculty of Pharmaceutical Sciences of the University of São Paulo.
- Bachelor of Pharmacy at the University of Mogi das Cruzes – São Paulo / Brazil
Professional Experience:
2012 – 2018 Project manager at University of São Paulo – Pharmacy Department
Dr Drielli Vital-Fujii has worked with computational studies, synthesis, biological evaluation, design, and development of new inhibitor candidates for Chagas Disease and Leishmaniasis.
2017 – 2017 International research fellow at University of California San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences – Center for Discovery and Innovation in Parasitic Diseases.
She used Virtual Screening (VS) and High-Throughput Screening (HTS) Integration in the Discovery of new drugs against neglected tropical diseases (NTDs).
2018 – 2019 Faculdades Oswaldo Cruz
Dr Drielli Vital-Fujii was a professor in the Faculty of Pharmacy, teaching the subjects of Pharmaceutical Chemistry and Drug Development.
2019 – 2021 Researcher in Biochemistry University of São Paulo – Biochemistry Department
She applied Photodynamic Therapy in Leishmaniasis Treatment, mentored undergraduate students in scientific activities, and wrote, executed, translated, and reported scientific projects with funding agencies.
2023-2023 UniPiaget – University Center.
Dr Drielli Vital-Fujii was a Biology, Nutrition, Physiotherapy, and Pharmacy professor.
Education:
2018 -2021 Postdoctoral at the Department of Biochemistry at the University of São Paulo
2013 -2018 PhD of Science: Drugs and Medicines at Department of Pharmacy at University of São Paulo
2012 -2013 M.Sc. of Sciences: Drugs and Medicines at the Department of Pharmacy at the University of São Paulo
2005-2008 Bachelor of Pharmacy at the University of Mogi das Cruzes
The leading publications of Dr Drielli Vital-Fujii are:
Vital-Fujii, D.G, Baptista, M.S. (2021). Progress in the photodynamic therapy treatment of Leishmaniasis. Brazilian Journal of Medical and Biological Research, 54, 1-11.
Gatti, F. M., Gomes, R.A., da Fonseca, A.L., Lima, E.J.C., Vital-Fujii, D.G., Taranto, A.G., Varotti, F.P., Trossini, G.H.G. (2020). Antiplasmodial activity of sulfonylhydrazones: in vitro and in silico approaches. Future medicinal chemistry, 13, 233-250.
Silva, E.J., Bezerra-Souza, A., Passero, L.F., Laurenti, M.D., Ferreira, G.M., Fujii, D.G.V., et al. (2018). Synthesis, leishmanicidal activity, structural descriptors and structure-activity relationship of quinoline derivatives. Future medicinal chemistry, 10, 2069-2085.
Leite, F.H.A., Froes, T.Q., da Silva, S.G., de Souza, E.I.M., Vital-Fuji,i D.G., Trossini, G.H.G., et al. (2017). An integrated approach towards the discovery of novel non-nucleoside Leishmania major pteridine reductase 1 inhibitors. European Journal of Medicinal Chemistry, 132, 322-332.
Vital, D.G., Damasceno, F.S., Rapado, L.N., Silber, A.M., Vilella, F.S., Ferreira, R.S., et al. (2017). Application of bioisosterism in design of the semicarbazone derivatives as cruzain inhibitors: a theoretical and experimental study. Journal of Biomolecular Structure and Dynamics, 35, 1244–1259.
Mello, J. F.R., Gomes, R.A., Vital-Fujii, D.G., Ferreira, G.M., Trossini, G.H.G. (2017). Fragment-based drug discovery as alternative strategy to the drug development for neglected diseases. Chemical Biology & Drug Design, 90, 1067-1078.
Pantaleao, S.Q., Fujii, D.G.V., Maltarollo, V.G., da C. Silva, D., Trossini, G.H.G., Weber, K.C., et al. (2017). The Role of QSAR and Virtual Screening Studies in Type 2 Diabetes Drug Discovery. Medicinal Chemistry, 13, 706-720.
Vital, D., Arribas, M., Trossini, G. (2014). Molecular Modeling and Docking Application to Evaluate Cruzain Inhibitory Activity by Chalcones and Hydrazides. Letters in Drug Design and Discovery, 11, 249-255.
Blau, L., Menegon, R.F., Trossini, G.H.G., Molino, J.V.D., Vital, D.G., Cicarelli, R.M.B., et al. (2013). Design, synthesis and biological evaluation of new aryl thiosemicarbazone as antichagasic candidates. European Journal of Medicinal Chemistry, 67, 142-151.
You can view some of Dr Drielli’s work below and links to her professional profile.
Orcid: https://orcid.org/0000-0001-9270-0466
Research Gate: https://www.researchgate.net/profile/Drielli-Gomes-Vital-Fujii
Scopus: https://www.scopus.com/authid/detail.uri?authorId=55829534000
Google Scholar: https://scholar.google.com/citations?user=F9U50AEAAAAJ&hl=pt-BR
Linkedin: linkedin.com/in/driellivital
Escavador: https://www.escavador.com/sobre/6101380/drielli-gomes-vital
CDIPD: https://cdipd.org/index.php/about-us/visiting-scientists
Does Amoxicillin liquid expire?
Yes, Amoxicillin Liquid does expire. It is available in powder form as the liquid suspension is not that stable during the shelf-life. As long as it remains in its powder form, it can stay good for up to a year.
However, you need to add water to it to make a suspension before you consume it and once you do that, do not use that suspension for more than 14 days (1).
Any leftover liquid after 14 days should be discarded and should not be used. This is because liquid suspensions are not as stable as solid dosage forms. No matter how well you store it or keep it in a refrigerator, it will inevitably expire after 14 days.
Now, there are a number of things that could go wrong with an expired liquid Amoxicillin.
- First, it would definitely lose its potency as the drug present in it will start to degrade once the expiration process begins.
- Another possibility is bacterial contamination. This is because liquid suspensions don’t have stable forms of preservatives and they can keep the formulation good for up to 14 days.
Liquid preparations are more susceptible to bacterial growth as high moisture content creates a very hospitable environment for bacteria. This is why it’s best to discard the Amoxicillin Liquid preparation after 14 days of opening it.
The use of expired Amoxicillin or any other medication is generally not recommended, be it a liquid preparation or a solid one. Expired meds have no guarantee regarding their safety and efficacy and they should be avoided generally.
What to do if you have taken expired Amoxicillin Liquid?
If you have accidentally taken a dose or two of expired Amoxicillin Liquid, don’t worry. It won’t necessarily harm you physically. However, it will not benefit you either and continuous use could be dangerous.
This is why it’s best to discard the expired preparation. Since it is a prescription medication, I recommend talking to your healthcare provider.
Just because Amoxicillin Liquid was prescribed earlier, it doesn’t mean it is the right choice of antibiotic again. This is why it’s best to get properly diagnosed. A new prescription is what you need.
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References
1.-
U.S. Food and Drug Administration. (2009). Highlights of prescribing information: AUGMENTIN (amoxicillin/clavulanate potassium) Tablets, Powder for Oral Suspension, and Chewable Tablets. Available from: https://www.accessdata.fda.gov/drugsatfda_docs/label/2013/
