Why is it not recommended to split Cialis tablets?
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
Why is it not recommended to split Cialis tablets?
It is not recommended to split Cialis or other Tadalafil tablets because of the following reasons:
- Uneven dose distribution
- Chances of early drug disintegration in the stomach
- Bitter un-masked taste
Uneven dose distribution
Uneven dose distribution is one of the main concerns why it is not recommended to split Cialis tablets. The tablets are asymmetrical in shape and there is no way to split them into two equal halves.
This makes it difficult to achieve dose uniformity and you may end up taking more or less than you are supposed to.
Chances of early drug disintegration in the stomach
Cialis tablets are film-coated and they are not directly compressed tablets. Film coating allows your drug to remain intact in the presence of gastric acid and the coating prevents acid degradation of the main active ingredient present inside.
Splitting the tablet will make it vulnerable to acid penetration and it may degrade your tablet and its actual potency.
Bitter un-masked taste
Another purpose of coating the tablets is to mask the unpleasant and bitter taste of the main active ingredient present in the drug.
When you split it in half, some of the components will start to come out of the tablet while it’ll inside your mouth. This can not only cause a bitter taste in the mouth but can also cause throat irritation.
What are the dangers associated with splitting Cialis tablets?
As we have discussed the reasons why it’s not recommended by the manufacturers to split the tablet and it literally says that on the top of the packaging. However, a split tablet can still be used.
Some people opt for tablet splitting for the purpose of cost reduction and there isn’t any significant danger in doing so. If you have done it, don’t worry about any physical harm and it will most likely not be a problem. However, it’s best to avoid that in future.
It is also important to make sure that you are taking Cialis in the best possible way. Always check for drug expiry before you take it, as expired medications won’t help your symptoms adequately.
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References
1.-
National Library of Medicine (US). Tadalafil. Bethesda (MD): U.S. National Library of Medicine; 2021 Mar 15 [updated 2021 Mar 15; cited 2023 Jan 28]. Available from: https://medlineplus.gov/druginfo/meds/a604008.html
