Doctor Pharmaceuticae - DPharm

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https://hdl.handle.net/10566/14968

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Browsing by Author "Aucamp, Marique"

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    Investigation of suitable microencapsulation techniques in the preformulation of selected antiretroviral drugs
    (University of the Western Cape, 2022) Okafor, Nnamdi Ikemefuna; Aucamp, Marique
    Background: The use of antiretroviral drugs (ARVDs) in the treatment of HIV/AIDS have been promising and effective especially amongst adults as it suppresses the viral load, thereby improving the life expectancy of HIV patients. However, the adoption of the treatment amongst children living with HIV have proved to be challenging. This is because of the poor drug adherence or non-compliance resulting from the lack of child-friendly formulations. The dosage forms are typically large tablets which have led to difficulty in swallowing or needs breaking of the tablets to obtain the correct dose and potentially some sort of dosage form manipulation by mixing it with milk or juice. The limited paediatric formulations that are available are mostly unpalatable, despite being formulated in a syrup or liquid, it still presents with a bitter taste. Therefore, all these factors combined have emphasized the need for child friendly dosage forms for children suffering from this debilitating disease.
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    Selected polyols as co-formers for pharmaceutical solid dispersions
    (Universty of the Western Cape, 2024) Poka, Madan Sai; Aucamp, Marique
    Poor aqueous solubility is a major concern for most new chemical entities (NCEs) developed for oral drug delivery as well as for almost 70% of registered and already marketed drugs. Solid-state alterations such as solid dispersions (SDs), co-amorphous and co-crystal systems have taken the lead over the past two decades, in an effort to address the challenge of poor drug solubility. One of the common factors amongst these techniques, that play a significant role in solubility enhancement, is the type of carrier or co-former used. Low molecular weight excipients such as amino acids, citric acid and a few sugars were studied as potential co-formers. However, the efforts made in identifying new low molecular weight excipients were modest. Given their low molecular weight, safety, hydrophilic nature and having high hydrogen bonding propensity makes polyols an interesting option to be explored as carriers.