The invention discloses an ointment combination matrix for sustained-release
drug delivery, and belongs to the technical field of a
medicine preparation. The ointment combination matrix contains a hydrophilic surfactant, a
cellulose derivative,
glyceryl behenate and
vaseline, wherein the matrix is ground and mixed with the
medicine to prepare the ointment; the ointment is swelled under
in vitro release conditions of 37 DEG C and 100rpm; the
medicine is kept to release at zero level or similar zero level for a long period of time;
vaseline is good in adaptability to body tissues, and has the effect of promoting
wound healing; the hydrophilic surfactant absorbs body liquid, so that the combination matrix is swelled and a
drug release channel can be formed; the
glyceryl behenate is good in
biocompatibility; the
thermal stability is increased; and matrix
dissolution is avoided and release of the
drug is promoted due to an
adhesive effect of the
cellulose derivative. The ointment is suitable for dosing normal or damaged tissues,
pollution and cleaning of corroded matters are avoided, the drug frequency is reduced, the medication compliance of a patient is improved, and the ointment is a sustained-release ointment preparation applied to
skin, oral cavities, rectums, vaginas and the like.