The present invention is directed to a liquid formulation of metformin or its
pharmaceutically acceptable salts thereof. The liquid pharmaceutical composition
comprises a therapeutically effective amount of metformin or its pharmaceutically
acceptable salt, in a liquid carrier, which may also include a sweetener that does
not increase the blood glucose level of a subject after ingestion thereof. In one
embodiment, it may also include alkyl hydroxyethylcellulose, and/or a polyhydroxy
alcohol. In another embodiment, the carrier may contain a sweetener, mineral acid,
and bicarbonate salt maintained at a pH of 4.0 to 9.0. It is useful for treating
hyperglycemia and diabetes.
