Effect of solid dispersion method on the solubility of naphthifin hydrochloride

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Abstract

Introduction. Naphthyphine hydrochloride is an antifungal and antibacterial drug; a representative of the chemical group of allylamins. The widespread use of Naphthyphine hydrochloride is limited by its low solubility in water, which causes technological difficulties in the production of drugs based on it, and low bioavailability indicators. To increase solubility and increase the release of most active substances from a number of solid and soft dosage forms, the modern method of obtaining their solid dispersions can be used successfully.

Objective. Study the effect of the solid dispersion method obtained using polyvinylpyrrolidone with a molar mass of 10000 g/mol (PVP-10000) on the solubility of Naphthyphine hydrochloride.

Material and methods. A substance of Naphthyphine hydrochloride was used. PVP-10000 was used as a solid dispersion carrier. The solid dispersion of Naphthyphinе hydrochloride with PVP-10000 was obtained with the help of the solvent removal method.

Results. It has been found that the production of solid dispersions increases the solubility and the rate of dissolving of Naphthyphine hydrochloride. The solubility of Naphthyphine hydrochloride from solid dispersion is increased by 2. 2 times compared to the original substance. The combination of physico-chemical analysis methods, such as UV spectroscopy and microcrystalloscopy, makes it highly likely to suggest that the observed increase in the solubility of Naphthyphine hydrochloride from the tested solid dispersions is due to the loss of the active substance's crystallinity and the transition of the effective substance into the solid state in the PVP-10000 matrix, and is also due to solubilization under the action of the polymer, resulting in the formation of the colloidal solutions of Naphthythine hydochloride when dissolved in the water itself of the dispersion.

Conclusion. Obtaining solid dispersions with PVP-10000 improves the water solubility of Naphthyphine hydrochloride. The authors plan to use the results presented in the article in the further development of the composition and technology of rapidly soluble solid forms of Naphthypine hydrochloride tablets and granules, having accelerated (less than 5 minutes) the release of the active substance and increased bioavailability. This will help to approach the treatment of fungal infections in a comprehensive way.

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About the authors

S. I. Kosenkova

I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation

Author for correspondence.
Email: sv-omega@yandex.ru
ORCID iD: 0000-0001-9337-5917

Ph. D. (Pharm.), Lecturer, Department of Pharmaceutical Technology, A. P. Nelyubin Institute of Pharmacy sv-omega@yandex.ru

Russian Federation, 8 Trubetskaya St., Moscow, 119991

I. I. Krasniuk

I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation

Email: krasnyuk.79@mail.ru
ORCID iD: 0000-0001-8557-8829

Dr. Sc. (Pharm.), Professor, Head of Department of Analytical, Physical and Colloidal Chemistry, A. P. Nelyubin Institute of Pharmacy

 

Russian Federation, 8 Trubetskaya St., Moscow, 119991

I. I. Krasniuk

I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation

Email: krasnyuki@mail.ru
ORCID iD: 0000-0002-7242-2988

доктор фармацевтических наук, профессор, зав. кафедрой, фармацевтической технологии, Институт фармации имени А. П. Нелюбина

Russian Federation, 8 Trubetskaya St., Moscow, 119991

I. M. Zubareva

I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation

Email: irina.kashlikova@mail.ru
ORCID iD: 0000-0002-0367-214X

Ph. D. (Pharm.), Associate Professor, Department of Pharmaceutical Technology, A. P. Nelyubin Institute of Pharmacy

Russian Federation, 8 Trubetskaya St., Moscow, 119991

A. V. Belyatskaya

I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation

Email: av.beliatskaya@mail.ru
ORCID iD: 0000-0002-8214-4483

Ph. D. (Pharm.), Associate Professor, Department of Pharmaceutical Technology, A. P. Nelyubin Institute of Pharmacy

Russian Federation, 8 Trubetskaya St., Moscow, 119991

O. I. Stepanova

I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation

Email: o.i.nikulina@mail.ru
ORCID iD: 0000-0002-9885-3727

Ph. D. (Pharm.), Associate Professor, Department of Pharmacology, A. P. Nelyubin Institute of Pharmacy

Russian Federation, 8 Trubetskaya St., Moscow, 119991

References

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Supplementary files

Supplementary Files
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1. JATS XML
2. Fig. 1.

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3. Fig. 2. Change in the concentration of solutions of the studied samples of naftifine hydrochloride over time: 1 - solid dispersion (naftifine hydrochloride: PVP-10000, 0.2: 0.4 g); 2 - mixture (naftifine hydrochloride: PVP-10000, 0.2: 0.4 g); 3 - naftifine hydrochloride substance, 0.2 g

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4. Fig. 3. Microcrystalloscopy analysis (magnification ×40): 1 – naftifine hydrochloride (substance); 2 – recrystallized substance of naftifine hydrochloride; 3 – solid dispersion (naftifine hydrochloride: PVP-10000, 1:2 by weight)

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