Crystal form I of clarithromycin

JH Liu, DA Riley, SG Spanton - US Patent 5,858,986, 1999 - Google Patents
We have discovered that 6-O-methylerythromycin A can exist in at least tWo distinct
crystalline forms, Which for the sake of identi? cation are designated “Form I” and “Form II” …

Investigation of solid-state stability of selected bioactive compounds

W Xu - 1997 - search.proquest.com
Chemical stability is a critical issue in the drug development process. Since a vast majority of
drug products are administered as solid dosage forms, understanding the molecular details …

[PDF][PDF] HPTLC determination of cilostazol in pharmaceutical dosage forms

J Kurien, P Jayasekhar, J John - Int J Adv Res, 2014 - researchgate.net
Cilostazol is chemically 6-[4-1 (-cyclohexyl-1H-tetrazol-5-yl-butoxyl] 3-4-dihydro-2 (1H)-
quinolinone1. Cilostazol and its metabolites are cyclic adenosine monophosphate (cAMP) …

Crystal structures of tetramorphic forms of donepezil and energy/temperature phase diagram via direct heat capacity measurements

Y Park, J Lee, SH Lee, HG Choi, C Mao… - Crystal growth & …, 2013 - ACS Publications
Donepezil is used for the palliative treatment of mild to moderate dementia of the
Alzheimer's disease. Donepezil crystallized as four solvent-free polymorphs including forms …

Rational polymorph screening based on slow cooling crystallization of poorly soluble mebendazole

M Karashima, K Kimoto, T Kojima, Y Ikeda - Journal of crystal growth, 2014 - Elsevier
During polymorph screening, the possibility of overlooking the most stable form of a poorly
soluble drug is relatively high due to its slow nucleation rate. To develop a rational …

[HTML][HTML] Orally disintegrating tablets containing melt extruded amorphous solid dispersion of tacrolimus for dissolution enhancement

P Ponnammal, P Kanaujia, Y Yani, WK Ng, RBH Tan - Pharmaceutics, 2018 - mdpi.com
In order to improve the aqueous solubility and dissolution of Tacrolimus (TAC), amorphous
solid dispersions of TAC were prepared by hot melt extrusion with three hydrophilic …

Solid-state stability assessment of controlled release tablets containing Carbopol® 971P

VR Goskonda, IK Reddy, MJ Durrani, W Wilber… - Journal of controlled …, 1998 - Elsevier
A tablet formulation containing dyphylline, Carbomer, magnesium stearate, talc and lactose
was prepared by the direct compression method. The objective of the study was to assess …

Melt Crystallization of Celecoxib-Carbamazepine Cocrystals with the Synchronized Release of Drugs

A Chen, P Cai, M Luo, M Guo, T Cai - Pharmaceutical Research, 2023 - Springer
Purpose The fixed-dose combination drug products have been increasingly used to treat
some complex diseases. A cocrystal containing two therapeutic components, named as a …

Polymorphism versus devitrification mechanism: Low-wavenumber Raman investigations in sulindac

M Latreche, JF Willart, L Paccou, Y Guinet… - International Journal of …, 2019 - Elsevier
The polymorphism of sulindac was investigated by Raman investigations, mainly in the low-
wavenumber region in order to analyze the influence of the amorphization method on …

Solid forms of ciprofloxacin salicylate: polymorphism, formation pathways, and thermodynamic stability

AO Surov, NA Vasilev, AV Churakov, J Stroh… - Crystal Growth & …, 2019 - ACS Publications
The crystallization of ciprofloxacin—an antibacterial fluoroquinolone compound—with
salicylic acid resulted in the isolation of five distinct solid forms of the drug, namely, an …