The invention relates to the technical field of pharmaceutical preparations, and discloses
muscle cooling
powder for enhancing swelling caused by exosmosis of a CT (
computed tomography) contrast agent and a preparation method thereof.The
muscle cooling
powder is prepared from amur corktree
bark,
coptis chinensis,
scutellaria baicalensis,
rheum officinale,
frankincense extract and
borneol as active ingredients, a natural deep-eutectic
solvent (NADES) generated by reaction of
choline chloride and
glycerol as a functional
solvent, and the
skin cooling
powder is prepared by mixing the active ingredients and the functional
solvent.
Polyvinyl alcohol and
poloxamer 407 are combined to form a dual
polymer matrix, and
sodium tetraborate is used as a cross-linking agent. The preparation method comprises the steps of NADES preparation and ultrasonic
drug loading, emulsification and solubilization, substrate solution
dissolution and dynamic cross-linking molding. According to the invention, the
solubility and the transdermal permeability of insoluble drugs are obviously improved through an NADES
system; a dynamic
boric acid ester bond cross-linked network constructed by
boric acid radicals and
polyol is utilized to endow the gel with excellent self-healing performance and tissue
adhesive force, the problem that the dressing at the joint part is easy to fall off is effectively solved, the forming quality is uniform, and the
physical stability is good.