The present invention is directed to compositions for administration of camostat mesylate or nafamostat mesylate to subjects by inhalational delivery, and to methods of treatment of COVID19 by administering such compositions to subjects by inhalational delivery.

The present invention is directed to compositions for administration of camostat mesylate or nafamostat mesylate to subjects by inhalational delivery, and to methods of treatment of COVID19 by administering such compositions to subjects by inhalational delivery.

Aspects of the invention described herein include a hydrogel prodrug and methods of making a hydrogel prodrug for drug delivery. Also contemplated are methods of treating, inhibiting, ameliorating or inhibiting a disease or disorder. Without being limiting, the methods for treatment can be directed to a cancer, HIV, a virus, pain, a bacterial infection, a neurological disorder, hemorrhaging, multiple sclerosis, diabetes, high blood pressure, Alzheimer's, or inhibiting a fungal growth in a subject in need.

Aspects of the invention described herein include a hydrogel prodrug and methods of making a hydrogel prodrug for drug delivery. Also contemplated are methods of treating, inhibiting, ameliorating or inhibiting a disease or disorder. Without being limiting, the methods for treatment can be directed to a cancer, HIV, a virus, pain, a bacterial infection, a neurological disorder, hemorrhaging, multiple sclerosis, diabetes, high blood pressure, Alzheimer's, or inhibiting a fungal growth in a subject in need.

The present invention relates to a carbonic acid adduct (CAA) comprising carbonic acid, at least one amine, and optionally at least one salt, said adduct being producible by a method comprising the following steps: a) providing a solution (A) comprising dissolved CO.sub.2; optionally b) dissolving a base (BA) not corresponding to the amine (AM) in the solution (A) so as to obtain the solution (A1); c) dissolving the at least one amine (AM) in the solution (A) or (A1) so as to obtain the solution (B); d) freezing the solution obtained after completion of step c); and e) storing the solution frozen in step d) at −100 to 0° C. for no longer than 4 days. The content of CO.sub.2 in the solution that is subjected to step c) is at least 6 g/l. The invention also relates to a method for producing the carbonic acid adduct (CAA), a pharmaceutical preparation (PP) comprising the carbonic acid adduct (CAA), and methods for the production thereof and use of the carbonic acid adduct (CAA) or the pharmaceutical preparation (PP) in therapy for a range of indications.

The present invention relates to a carbonic acid adduct (CAA) comprising carbonic acid, at least one amine, and optionally at least one salt, said adduct being producible by a method comprising the following steps: a) providing a solution (A) comprising dissolved CO.sub.2; optionally b) dissolving a base (BA) not corresponding to the amine (AM) in the solution (A) so as to obtain the solution (A1); c) dissolving the at least one amine (AM) in the solution (A) or (A1) so as to obtain the solution (B); d) freezing the solution obtained after completion of step c); and e) storing the solution frozen in step d) at −100 to 0° C. for no longer than 4 days. The content of CO.sub.2 in the solution that is subjected to step c) is at least 6 g/l. The invention also relates to a method for producing the carbonic acid adduct (CAA), a pharmaceutical preparation (PP) comprising the carbonic acid adduct (CAA), and methods for the production thereof and use of the carbonic acid adduct (CAA) or the pharmaceutical preparation (PP) in therapy for a range of indications.

Aspects of the invention described herein include a hydrogel prodrug and methods of making a hydrogel prodrug for drug delivery. Also contemplated are methods of treating, inhibiting, ameliorating or inhibiting a disease or disorder. Without being limiting, the methods for treatment can be directed to a cancer, HIV, a virus, pain, a bacterial infection, a neurological disorder, hemorrhaging, multiple sclerosis, diabetes, high blood pressure, Alzheimer's, or inhibiting a fungal growth in a subject in need.

Provided are polyethylene glycol drug conjugates of general formula (I), (II) or (III) and pharmaceutical compositions and a use thereof. The conjugates are formed by combining low molecular weight polyethylene glycol with 2-4 drug molecules. The conjugates can interact with receptor dimers or polymers, thereby improving the in vivo distribution of the drug, changing the oil and water distribution coefficient, enhancing the pharmacological activity, reducing the blood-brain barrier permeability of the drug, and improving the bioavailability of the drug.

The invention relates to a method of preparing a composition, the composition comprising a crosslinked first polymer, optionally a second polymer, which may be crosslinked or non-crosslinked, and water, wherein the first and the second polymer are selected from a polysaccharide, comprising at least steps (i) to (iv): (i) crosslinking a mixture comprising the first polymer and water; (ii) subsequent to the crosslinking in step (i), terminating the crosslinking; (iii) optionally blending the product obtained in step (ii) with the second polymer; (iv) subjecting the product obtained in step (iii) to dialysis.

The invention relates to a method of preparing a composition, the composition comprising a crosslinked first polymer, optionally a second polymer, which may be crosslinked or non-crosslinked, and water, wherein the first and the second polymer are selected from a polysaccharide, comprising at least steps (i) to (iv): (i) crosslinking a mixture comprising the first polymer and water; (ii) subsequent to the crosslinking in step (i), terminating the crosslinking; (iii) optionally blending the product obtained in step (ii) with the second polymer; (iv) subjecting the product obtained in step (iii) to dialysis.