Masking particles which comprise a drug-containing particle containing a drug, an acid, and a carbonate, the drug-containing particle being coated with a coating layer containing a water-insoluble polymer sufficiently suppress drug release in the oral cavity and pharynx, rapidly release a drug after swallowing, and easily control the release suppression time of a drug. The acid may be at least one organic acid. The carbonate may be at least one water-soluble carbonate. Oral pharmaceutical compositions include tablets, granules, fine granules, powders.

Embodiments of the invention include drug delivery coatings and devices including the same. In an embodiment, the invention includes a drug delivery coating including a polymeric layer. The polymeric layer can include a hydrophilic outer surface. The coating can also include a matrix contacting the hydrophilic outer surface. The matrix can include a particulate hydrophobic therapeutic agent and a cationic agent. The polymeric layer can further include a hydrophilic polymer having pendent photoreactive groups and a photo-crosslinker including two aryl ketone functionalities. Other embodiments are also included herein.

This disclosure relates to crystalline forms of 3-acyl-buprenorphine derivatives and sustained release injectable pharmaceutical compositions for treatment of opioid dependence, pain or depression, including an aqueous suspension of crystalline 3-acyl-buprenoprhine, or a pharmaceutically acceptable salt thereof, wherein the composition does not include an organic solvent, a polylactide polymer, a polyglycolide polymer, or a copolymer of polylactide and polyglycolide. This disclosure also includes 3-acyl-buprenoprhine or a pharmaceutically acceptable salt thereof prepared in a controlled release matrix, including poly(lactide-co-glycolide), sucrose acetoisobutyrate, lecithin, diolein and a combination of two or more thereof.

The invention relates to formulations and methods of using formulations of topical preparation of diaminophenothiazine compounds such as 3,7-bis(dimethylamino)phenothiazin-5-ium chloride in the prevention and/or treatment of peripheral neuropathy and its associated conditions, particularly in the eye. In a preferred embodiment, a topical formulation comprising 3,7-bis(dimethylamino)phenothiazin-5-ium chloride encapsulate in poly(lactic-co-glycolic acid (PLGA) microparticles is prepared, wherein the microparticles are coated with a mucoadhesive agent such as chitosan.

Provided herein are pharmaceutical compositions which enhance the intestinal levels of soluble rifaximin, formulations comprising said compositions, and their use in treating one or more bowel related disorders.

The present disclosure provides a sustained formulation for prevention or treatment of autoimmune disease, comprising microparticles comprising naltrexone or pharmaceutically acceptable salts thereof, and biodegradable polymers, and a method using the same. Accordingly, it may be used to prevent or treat autoimmune diseases for a prolonged period of time with a single administration.

The present invention relates a microcapsule that comprises an active pharmaceutical ingredient and a polymeric shell comprised of polymeric materials such as polyether, polyester, polyamine, polyamide, polyurea, polyurethane, polythiocarbamate, and polythiocarbonate. The outer surface of shell comprises surface functional groups such as hydroxide, primary amine, carboxylic acid, or protected forms thereof. These surface functional groups may be reacted further with reactants to place specific organic groups on the surface of the microcapsule. Such microcapsules are prepared by a modified interfacial condensation polymerization.

The invention provides methods of making microparticle and nanoparticle ocular implants from a compositions comprising: 99 to 60% (w/w) of a photopolymerizable composition selected from the group of fragments or monomers consisting of polyalkylene glycol diacrylate and polyalkylene glycol dimethacrylate, wherein the photopolymerizable composition has a molecular weight in the range of 100 to 20,000 Dalton; a biodegradable polymer selected from the group consisting of aliphatic polyester-based polyurethanes, polylactides, polycaprolactones, polyorthoesters and mixtures, copolymers, and block copolymers thereof; a photoinitiator; and a therapeutic agent.

An improved microparticle or lyophilized or otherwise reconstitutable microparticle composition thereof for medical therapy, including ocular therapy.

A therapeutic nanoparticle comprising: at least one oncologic drug; and taurolidine, whereby to provide the simultaneous delivery of the at least one oncologic drug and taurolidine, thereby harnessing the synergistic effect of taurolidine on the at least one oncologic drug.