Researchers have developed a capsule that can deliver a week’s worth of HIV drugs in a single dose. This advance could make it much easier for patients to adhere to the strict schedule of dosing required for the drug cocktails used to fight the virus, the researchers say.
Extended drug delivery offers numerous benefits compared to immediate release dosage form. Membrane coating of immediate release dosage form is an effective means of producing an extended drug delivery system. Polymers when coated alone, have limited ability to form the rate controlling membrane with good mechanical properties.
Objectives We aimed to prepare a once-daily modified-release oral formulation of tacrolimus by utilizing an extended-release granules (ERG). Methods Extended-release granules were prepared using ethylcellulose (EC), hydroxypropylmethylcellulose (HPMC) and lactose via a solvent evaporation method with ethanol. Physicochemical and biopharmaceutical studies were performed to determine the formulation with optimum release profile of tacrolimus from ERG. Key findings Tacrolimus existed in an...
The aim of this study was to evaluate the suitability of saturated phosphatidylcholine (Phospholipon® 90H) as extended release excipient in matrix tablets for three model drugs with different aqueous solubility (theophylline, caffeine and diprophylline)