Biopharmaceutical and rheometric studies in the development of a gel composition with dimethindene maleate




hydrogel, dimethindene maleate, dexpanthenol, hydroxypropyl methylcellulose (HPMC), xanthan gum, carbomer, G' storage modulus, G, viscoelastic properties


Every year there is an increase in the number of cases of hypersensitivity to bites from various insects. A local allergic reaction to bites occurs within a few minutes and is accompanied by acute pain at the site of the bite, severe itching, hyperemia, the appearance of papules, tissue edema, and sometimes a small-point rash around. Considering the small number of drugs for local therapy of allergic manifestations and the unidirectional nature of their action, it is urgent to develop a drug containing the antihistamine dimethindene maleate and dexpanthenol, which plays the role of an anti-inflammatory, reparative and dermatoprotective substance.

The aim. The aim of the study is to substantiate the delivery system of dimethindene maleate and dexpanthenol based on biopharmaceutical and rheometric research methods.

Materials and methods. To determine the component composition of the active ingredient delivery system, the type of dimetindene maleate administration was substantiated by studying its solubility. As a delivery system for active pharmaceutical ingredients, hydrogels were considered, which were made using high-molecular compounds of various origins: a natural substance – xanthan gum, a semi-synthetic substance – gyroxypropyl methylcellulose, and a synthetic substance – carbomer. The rate of release of dimethindene maleate from hydrogels was estimated by studying the kinetics of release through a semipermeable membrane. The assessment of the viscoelastic properties of hydrogels was carried out by performing an oscillatory rheometry test, which makes it possible to quantitatively determine the viscous and elastic components, as well as to characterize the bioadhesive properties.

Results. Based on the results of studying the solubility of dimethindene maleate in hydrophilic non-aqueous solvents, it was determined that propylene glycol is optimal for ensuring the introduction of a substance into hydrogel bases as a solution. As a result of studying the kinetics of the release of dimethindene maleate from hydrogels, it was found that the use of carbomer as a delivery system provides the release of 28.33 % of dimethindene maleate, xanthan gum – 25 %, hydroxypropyl methylcellulose – 7.33 %. When studying the viscoelastic properties by determining the values ​​of the storage modulus G', the loss modulus G" and the damping (attenuation) factor tg δ, it was found that the carbomer-based hydrogel is a viscoelastic solid, the xanthan gum and hydroxypropyl methylcellulose-based hydrogels are a viscoelastic liquid. Bioadhesion on the surface of the skin during use has the advantage of carbomer hydrogel.

Conclusions. Based on the combination of biopharmaceutical and rheometric methods for substantiating the composition of the delivery system for dimetindene maleate and dexpanthenol, it is rational to use carbomer for further pharmacological and microbiological studies

Author Biographies

Tetiana Popova, National University of Pharmacy

Postgraduate Student

Department of Cosmetology and Aromology

Halyna Kukhtenko, National University of Pharmacy

PhD, Associate Professor

Department of Cosmetology and Aromology

Nataliia Bevz, National University of Pharmacy

PhD, Associate Professor

Department of Pharmaceutical Chemistry

Oleksandr Kukhtenko, National University of Pharmacy

Doctor of Pharmaceutical Sciences, Professor, Head of Department

Department of Technologies of Pharmaceutical Preparations


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How to Cite

Popova, T., Kukhtenko, H., Bevz, N., & Kukhtenko, O. (2021). Biopharmaceutical and rheometric studies in the development of a gel composition with dimethindene maleate. ScienceRise: Pharmaceutical Science, (3(31), 11–18.



Pharmaceutical Science