The Experts below are selected from a list of 519 Experts worldwide ranked by ideXlab platform

Takao Saruta - One of the best experts on this subject based on the ideXlab platform.

Hiroaki Matsuoka - One of the best experts on this subject based on the ideXlab platform.

Chhanda Das - One of the best experts on this subject based on the ideXlab platform.

  • rp hplc method for simultaneous estimation of Bisoprolol Fumarate and hydrochlorothiazide in tablet formulation
    Journal of Pharmaceutical and Biomedical Analysis, 2010
    Co-Authors: Sneha J Joshi, Pradnya A Karbhari, Suvarna I Bhoir, K S Bindu, Chhanda Das
    Abstract:

    Abstract A simple, precise and stability-indicating HPLC method was developed and validated for the simultaneous determination of Bisoprolol Fumarate and hydrochlorothiazide in pharmaceutical dosage form. The method involves the use of easily available inexpensive laboratory reagents. The separation was achieved on an Inertsil ODS 3V (25 cm × 4.6 mm) 5 μm column with isocratic flow. The mobile phase at a flow rate of 1.0 mL min −1 , consisted of 0.1 M potassium dihydrogen phosphate buffer and acetonitrile (70:30, v/v). The UV detection was carried out at 228 nm. A linear response was observed over the concentration range 2.5–50 μg mL −1 of Bisoprolol Fumarate and the concentration range 6.25–125 μg mL −1 of hydrochlorothiazide. Limit of detection and limit of quantitation for Bisoprolol Fumarate were 0.01 and 0.03 μg mL −1 , respectively and for hydrochlorothiazide were 0.01 and 0.05 μg mL −1 , respectively. The method was successfully validated in accordance to ICH guidelines acceptance criteria for specificity, linearity, accuracy, precision, robustness, ruggedness and system suitability. Individual drugs (Bisoprolol Fumarate and hydrochlorothiazide), their combinations and the tablets were exposed to thermal, photolytic, hydrolytic and oxidative stress conditions. The resultant stressed samples were analyzed by the proposed method. The method gave high resolution among the degradation products and the analytes. The peak purity of analyte peaks in the stressed samples was confirmed by photodiode array detector. The method was used for accelerated stability study on marketed and in-house formulations. The analysis concluded that the method was selective for simultaneous estimation of Bisoprolol Fumarate and hydrochlorothiazide and was stability-indicating.

Alina Diana Panainte - One of the best experts on this subject based on the ideXlab platform.

  • New modified release tablets of Bisoprolol Fumarate for the treatment of hypertension: characterization and in vitro evaluation
    Journal of Drug Delivery Science and Technology, 2019
    Co-Authors: Alina Diana Panainte, Carmen Gafitanu, Iulian Stoleriu, Liliana Mititelu Tarțău, Maria-cristina Popescu, Gabriela Lisa, E.g. Popa
    Abstract:

    Abstract Objectives The purpose of the study was to develop sustained release tablets containing Bisoprolol Fumarate and an innovative combination of Precirol ATO5 and hydroxypropyl methylcellulose, in order to conclude upon: properties of pharmaceutical tablet formulations, drug-excipients interactions, evaluate their in vitro release behavior. Methods The tablet formulations with rate controlling polymers were prepared by melt granulation technique. The physico-chemical characterization of new tablet formulation was performed by FT-IR spectroscopy, differential scanning calorimetry, thermogravimetric analysis and X-ray diffraction. The formulations were also evaluated for in vitro dissolution test to select the optimized formulation. Results Structural evaluation indicated the presence of interactions between tablet components which did not affect drug release. The tablets displayed good mechanical properties, with friability values close to zero and drug content was found to be uniform in all formulas. Release profile showed a tendency to follow Korsmeyer-Peppas and Higuchi kinetics. Conclusions In the present study we investigated the effect of concentration of matrix former compounds (hydroxypropyl methylcellulose and glyceril palmitostearate) on the release rate of Bisoprolol Fumarate. The study evidenced the assembling through physical bonds between the excipients and the drug, which do not affect the release of the bioactive compound.

  • RP-HPLC ANALYSIS METHOD OF Bisoprolol Fumarate IN A NEW TABLET FORMULATION
    2018
    Co-Authors: Alina Diana Panainte, Madalina Vieriu, Gladiola Tantaru, Mihai Apostu, Nela Bibire, Liliana Avasilcai, Ionela Daniela Morariu
    Abstract:

    RP-HPLC ANALYSIS METHOD OF Bisoprolol Fumarate IN A NEW TABLET FORMULATION (Abstract): Aim: Development of a new HPLC method for the quantitative determination of Bisoprolol Fumarate in a novel sustained release tablet formulation. Material and methods: The sustained release matrix tablets with Bisoprolol Fumarate were formulated using an innovative combination of hydroxypropyl methylcellulose and Precirol ATO5 as excipients. The HPLC separation was done using an Agilent Eclipse XDB-C18 column (150 mm ´ 4.6 mm, 5 µm) and a mobile phase consisting of acetonitrile 10 mM and pH 4.5 phosphate buffer solution (10:90, v/v) at a flow rate of 1.0 mL/min. The method was validated according to ICH guidelines in terms of accuracy, precision, linearity and robustness. Results: Bisoprolol Fumarate was separated in less than 4 minutes with good resolution and without any tailing effect or excipient interference. The limit of detection and the limit of quantification were 2.79 and 3.07 µg/mL, respectively. The relative standard deviation evaluated for the precision of the method was lower than 1%. Conclusions: The HPLC method developed for the determination of Bisoprolol Fumarate in a novel sustained release tablet formulation was specific and simple and it could also be used for in vitro studies.

  • in vitro testing of xanthan lignin hydrogels as carriers for controlled delivery of Bisoprolol Fumarate
    Revista medico-chirurgicală̆ a Societă̆ţ̜ii de Medici ş̧i Naturaliş̧ti din Iaş̧i, 2015
    Co-Authors: Irina Elena Răschip, Alina Diana Panainte, Daniela Pamfil, Lenuta Profire, Cornelia Vasile
    Abstract:

    Aim To develop sustained release matrix tablets based on xanthan as highly water-soluble, cost-effective, non-toxic, easily available, and suitable hydrophilic systems. Material and methods Xanthan and lignin epoxy-modified resin (LER) mixture were crosslinked using epichlorohydrin as crosslinking agent leading to superabsorbent hydrogels with high swelling rate in aqueous mediums. Results and conclusions These hydrogels were tested as carries by the loading/delivery behaviour of Bisoprolol Fumarate in physiological conditions and based on the obtained results these hydrogels may show interest for application in medical and pharmaceutical areas. The amount of drug loaded in polymer networks was found to be ranging between 14.4% and 19.2%. Drug release was retarded and the release mechanism of the active principle was found to depend on matrix composition.

  • IN VITRO TESTING OF XANTHAN/LIGNIN HYDROGELS AS CARRIERS FOR CONTROLLED DELIVERY OF Bisoprolol Fumarate.
    Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi, 2015
    Co-Authors: Irina Elena Răschip, Alina Diana Panainte, Daniela Pamfil, Lenuta Profire, Cornelia Vasile
    Abstract:

    Aim To develop sustained release matrix tablets based on xanthan as highly water-soluble, cost-effective, non-toxic, easily available, and suitable hydrophilic systems. Material and methods Xanthan and lignin epoxy-modified resin (LER) mixture were crosslinked using epichlorohydrin as crosslinking agent leading to superabsorbent hydrogels with high swelling rate in aqueous mediums. Results and conclusions These hydrogels were tested as carries by the loading/delivery behaviour of Bisoprolol Fumarate in physiological conditions and based on the obtained results these hydrogels may show interest for application in medical and pharmaceutical areas. The amount of drug loaded in polymer networks was found to be ranging between 14.4% and 19.2%. Drug release was retarded and the release mechanism of the active principle was found to depend on matrix composition.

  • SPECTROPHOTOMETRIC METHOD FOR ESTIMATION OF Bisoprolol Fumarate IN TABLETS
    Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi, 2014
    Co-Authors: Alina Diana Panainte, Madalina Vieriu, Gladiola Tantaru, Mihai Apostu, Bibire N, Dorneanu
    Abstract:

    SPECTROPHOTOMETRIC METHODS FOR ESTIMATION OF Bisoprolol Fumarate IN TABLETS (Abstract): Bisoprolol Fumarate is prescribed for the treatment of hypertension and angina pectoris. Aim: The purpose of this study was to develop a simple, sensitive, accurate, and reproducible method for estimation of Bisoprolol Fumarate in tablets. Material and methods: The proposed method was based on a yellow colored complex formed with tropaeolin 00, extractable in dichloromethane with maximum absorbance at 412 nm. The method was validated statistically. Results: The linearity domain was observed in the concentration of 5-30 µg/ml. The recovery studies confirmed the accuracy of the proposed method. Conclusions: The proposed method can be applied for the routine analysis of Bisoprolol from formulations. Keywords: Bisoprolol Fumarate, SPECTROPHOTOMETRIC METHOD, TROPAEOLIN 00. Bisoprolol is a β blocker cardiovascular drug. It is structurally similar to metoprolol, acebutolol and atenolol in that it has two substituents in the para position of the benzene ring (fig.1) which might be the reason for its β1-selectivity.

Yasuki Kihara - One of the best experts on this subject based on the ideXlab platform.

  • head to head comparison of the heart rate variability between the Bisoprolol transdermal patch and Bisoprolol Fumarate tablet
    Cardiovascular Therapeutics, 2018
    Co-Authors: Akinori Sairaku, Yukiko Nakano, Nobuo Shiode, Kazuyoshi Suenari, Nozomu Oda, Koichi Ono, Yasuki Kihara
    Abstract:

    AIM The Bisoprolol transdermal patch is a newly developed β-blocker designed to deliver its pharmaceutical ingredient through the skin surface. We aimed to compare the Bisoprolol transdermal patch and Bisoprolol Fumarate tablet using the heart rate variability (HRV). METHOD Eligible hypertensive patients received a 2-week administration with a 2.5 mg Bisoprolol Fumarate tablet, followed by 24-hour Holter monitoring. The tablet was then switched to a 4 mg Bisoprolol transdermal patch, and after 2 weeks of its administration, the Holter monitoring was repeated. Both drugs were given once daily. Endpoint was any alteration in the HRV caused by a change in the administration route for Bisoprolol. RESULTS There was no difference in the 24-hour time-domain and frequency-domain HRV measurements before and after the drug switching among patients recruited (N = 30). However, the switching significantly altered the time-course curves of the hourly HRV measurements, including the mean normal-to-normal (NN) interval (P = .004), standard deviation of the NN index (P < .001), high frequency component (P = .01), and low frequency component (P = .003). Those alternations were attributed to the slower heart rate and more decreased short-term autonomic fluctuation resulting from the administration of the Bisoprolol transdermal patch, which were observed later than 12 hours after the drug initiation. No adverse events were noted throughout the study period. CONCLUSION The pattern of the autonomic modulation may vary depending on either a transdermal or oral administration even though an equivalent dose of Bisoprolol is given.

  • Head‐to‐head comparison of the heart rate variability between the Bisoprolol transdermal patch and Bisoprolol Fumarate tablet
    Cardiovascular therapeutics, 2018
    Co-Authors: Akinori Sairaku, Yukiko Nakano, Nobuo Shiode, Kazuyoshi Suenari, Nozomu Oda, Koichi Ono, Yasuki Kihara
    Abstract:

    AIM The Bisoprolol transdermal patch is a newly developed β-blocker designed to deliver its pharmaceutical ingredient through the skin surface. We aimed to compare the Bisoprolol transdermal patch and Bisoprolol Fumarate tablet using the heart rate variability (HRV). METHOD Eligible hypertensive patients received a 2-week administration with a 2.5 mg Bisoprolol Fumarate tablet, followed by 24-hour Holter monitoring. The tablet was then switched to a 4 mg Bisoprolol transdermal patch, and after 2 weeks of its administration, the Holter monitoring was repeated. Both drugs were given once daily. Endpoint was any alteration in the HRV caused by a change in the administration route for Bisoprolol. RESULTS There was no difference in the 24-hour time-domain and frequency-domain HRV measurements before and after the drug switching among patients recruited (N = 30). However, the switching significantly altered the time-course curves of the hourly HRV measurements, including the mean normal-to-normal (NN) interval (P = .004), standard deviation of the NN index (P