Abstract: Disclosed is a method of treating or ameliorating a condition which can be treated or ameliorated by the administration of guaifenesin, which method comprises orally administering to a subject in need thereof an effective amount of an immediate release solution for oral administration of guaifenesin and at least one additional drug. In addition to water the solution comprises as solvents propylene glycol and glycerol in a concentration which significantly increases the bioavailability of guaifenesin in the human body.

Abstract: A combination of dosage units for alleviating respiratory ailments and a method of alleviating respiratory ailments which uses this combination of dosage units. The dosage units comprise one or more first dosage units comprising pseudoephedrine and/or a pharmaceutically acceptable salt thereof and one or more second dosage units comprising phenylephrine and/or a pharmaceutically acceptable salt thereof.

Abstract: A method of alleviating or treating a condition which can be alleviated or treated by administering hyoscyamine comprises administering to a subject in need thereof a pharmaceutical dosage form which comprises at least one of hyoscyamine and a pharmaceutically acceptable salt thereof. The dosage form comprises two or more hyoscyamine formulations, at least one of the formulations being an immediate release formulation and at least one other one being a controlled release formulation.

Abstract: Disclosed is an immediate release solution for oral administration of guaifenesin and at least one additional drug. In addition to water the solution comprises as solvents propylene glycol and glycerol in a concentration which significantly increases the bioavailability of guaifenesin in the human body.

Abstract: A pharmaceutical dosage form which comprises diphenhydramine and/or a pharmaceutically acceptable salt thereof and at least one second drug. The dosage form provides a plasma concentration within the therapeutic range of the at least one second drug over a period which is coextensive with a substantial part of the period over which the dosage form provides a plasma concentration within the therapeutic range of diphenhydramine or salt thereof. This Abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: Disclosed is an immediate release solution for oral administration of guaifenesin and at least one additional drug. In addition to water the solution comprises as solvents propylene glycol and glycerol in a concentration which significantly increases the bioavailability of guaifenesin in the human body.

Abstract: A pharmaceutical dosage form which comprises phenylepherine or a pharmaceutically acceptable salt thereof and a second drug. The dosage form provides a plasma concentration within the therapeutic range of the second drug over a period which is coextensive with at least about 70% of the period over which the dosage form provides a plasma concentration within the therapeutic range of phenylepherine. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: A combination of dosage units for alleviating respiratory ailments and a method of alleviating respiratory ailments which uses this combination of dosage units. The dosage units comprise one or more first dosage units comprising pseudoephedrine and/or a pharmaceutically acceptable salt thereof and one or more second dosage units comprising phenylephrine and/or a pharmaceutically acceptable salt thereof.

Abstract: A pharmaceutical dosage form which comprises two or more different hyoscyamine formulations, at least one of the formulations being an immediate release hyoscyamine formulation and at least one other one being a controlled release hyoscyamine formulation. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: A combination of dosage units for alleviating respiratory ailments and a method of alleviating respiratory ailments which uses this combination of dosage units. The dosage units comprise one or more first dosage units comprising pseudoephedrine and/or a pharmaceutically acceptable salt thereof and one or more second dosage units comprising phenylephrine and/or a pharmaceutically acceptable salt thereof. This Abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.