Liquid formulations of compounds active at sulfonylurea receptors

摘要

The invention provides liquid formulations of compounds that act at sulfonylurea receptors that are suitable for intravenous and intra-arterial infusion. Compounds active at a sulfonylurea receptor include glibenclamide, tolbutamide, repaglinide, nateglinide, meglitinide, midaglizole, LY397364, LY389382, glyclazide, and glimepiride. Liquid formulations may be concentrated solutions suitable for storage; may be diluted (e.g., dilution of 1:1 or 1:1.2) suitable for bolus injections, and may be further diluted (e.g., dilution of 1:10 or 1:20 or more) for intravenous and intra-arterial infusion over an extended period of time. For example, a liquid formulation may include at least about 0.05 mg/ml glibenclamide in a water-based solution including 40% polyethylene glycol 300, 10% Ethanol, 50% water, at about pH 9. The solution may include a buffer, and is suitable for storage in refrigerator or at room temperature. This solution may be diluted 1:1, or more (e.g., 1:20) without precipitation of the glibenclamide.