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Development of Oil Vehicle Screening Method for Bromo Acid Dye-Based Color-Changing Cosmetic Formulation

Bromo acid dye (Red 21) recently gained attention in the production of color-changing cosmetics. The critical aspect in the development of cosmetic products using this dye group is the compatibility of its oil vehicles. The compatibility of bromo …

Structural Characterization and Pharmaceutical Evaluation of Telmisartan Hydrochloride Salts

Telmisartan is an anti-hypertensive drug that exhibits poor aqueous solubility. In this work, salt formation was utilized to address this issue. Three hydrochloride salts of telmisartan (TELHCl), a trihemihydrate hydrochloride salt (TELHCl-Hyd), and …

COCRYSTAL PREDICTION OF THE SALICYLIC ACID- NICOTINAMIDE

Salicylic acid-nicotinamide was used as a prediction model in the hydrogen bond interactions dominating a cocrystal structure. The combined conformation of the two molecules was analyzed at the B3LYP-D3BJ and WB97M-D3BJ theoretical level. The …

Fixed-Dose Combination (FDC) Formulation of Quinine Sulphate-Doxycycline (Qidox) for Malaria Therapy

Background: One of the deadliest parasite infections is malaria. A combination of quinine sulphate and doxycycline is another therapeutic option for malaria that is resistant to chloroquine and is anticipated to be able to both combat the issue of …

Optimization of Lubrication and Compression Process Parameters of Vitamin C Film-Coated Caplets

Tablet production is a very intricate process influenced by numerous process variables or parameters. This study aimed to identify the critical processing variables that affect Critical Quality Attributes (CQAs) of vitamin C film-coated caplets …

Utilizing hot-stage polarized microscopy and ATR-FTIR for ramipril co-crystal screening, supported by principal component analysis and cluster analysis

Context: Co-crystal formation, a method for enhancing the physicochemical properties of active pharmaceutical ingredients (APIs), has gained traction in pharmaceutical research. However, the current landscape lacks comprehensive and dependable …

Optimization of vitamin C emulgel formula using simplex lattice design

Vitamin C in the cosmetics is known to have many benefits such as a brightening agent, anti-aging and preventing black spots on facial skin. However, vitamin C preparations are easily oxidized and change color in the product, so that a stabilizer is …

Energetics of carboxylic acid–pyridine heterosynthon revisited: A computational study of intermolecular hydrogen bond domination on phenylacetic acid–nicotinamide cocrystals

Carboxylic acid–pyridine heterosynthon (CPHS) is one of the most common synthons found in cocrystal packing. Phenylacetic acid (PYC)–nicotinamide (NIC) (PYCNIC) cocrystals were used as a computational model to assess the most important factor in the …

Ciprofloxacin salt and salt co-crystal with dihydroxybenzoic acids

The crystal structure of two multi-component crystals of ciprofloxacin [systematic name: 1-cyclo­propyl-6-fluoro-4-oxo-7-(piperazin-1-yl)quinoline-3-carb­­oxy­lic acid], a fluoro­quinolone anti­biotic, namely, ciprofloxacin 2,6-di­hydroxy­benzoate …

X-ray diffraction and vibrational spectroscopic studies of the intermolecular interactions on the grinding and compaction behaviours of lopinavir and ritonavir crystals

Lopinavir (LPV) and ritonavir (RTV) are anti-viral drugs used in combination and commonly pre-pared through hot-melt extrusion techniques. Mechanical processes are greatly involved, including blendingand milling. Therefore, the crystal behavior of …