A breath triggered nebulizer for the administration of inhaled medication to a patient, said nebulizer having an airway and horizontal and vertical axes, comprising a. a horizontally oriented cylindrical body defining an upper chamber airway; b. a vertically oriented lower chamber having therein a liquid reservoir containing a medicament in solution, wherein said liquid reservoir defines the horizontal axis; c. a pressurized gas inlet port in fluid communication with a gas jet; d. a liquid channel surrounding or adjacent to the gas inlet port, said liquid channel in fluid communication with a liquid orifice, wherein the gas jet is adjacent to the liquid orifice, and the gas jet is oriented vertically; e. a horizontally movable baffle comprising a first position at a predetermined distance from the gas jet such that a pressure differential is created in the liquid channel that draws the medicament solution through the liquid channel and causes nebulization of the medicament solution by the interaction of the gas jet and liquid orifice; f. wherein the baffle has a second default position distal from the gas jet, such position at a distance from the gas jet so that the pressure differential is insufficient to draw liquid into the liquid channel, and no nebulization of the liquid occurs; g. wherein the baffle movement is controlled by a horizontal channel (148,149) between the first and second positions at a fixed vertical distance relative to the gas jet; h. wherein the baffle is moved from the second position to the first position by the inhalation by the patient, and the baffle shifts to the second position when the patient is not inhaling; and i. wherein the nebulized medicament solution is inhaled by the patient thereby delivering nebulized medicament solution to the lungs of the patient. a. a horizontally oriented cylindrical body defining an upper chamber airway; b. a vertically oriented lower chamber having therein a liquid reservoir containing a medicament in solution, wherein said liquid reservoir defines the horizontal axis; c. a pressurized gas inlet port in fluid communication with a gas jet; d. a liquid channel surrounding or adjacent to the gas inlet port, said liquid channel in fluid communication with a liquid orifice, wherein the gas jet is adjacent to the liquid orifice, and the gas jet is oriented vertically; e. a horizontally movable baffle comprising a first position at a predetermined distance from the gas jet such that a pressure differential is created in the liquid channel that draws the medicament solution through the liquid channel and causes nebulization of the medicament solution by the interaction of the gas jet and liquid orifice; f. wherein the baffle has a second default position distal from the gas jet, such position at a distance from the gas jet so that the pressure differential is insufficient to draw liquid into the liquid channel, and no nebulization of the liquid occurs; g. wherein the baffle movement is controlled by a horizontal channel (148,149) between the first and second positions at a fixed vertical distance relative to the gas jet; h. wherein the baffle is moved from the second position to the first position by the inhalation by the patient, and the baffle shifts to the second position when the patient is not inhaling; and i. wherein the nebulized medicament solution is inhaled by the patient thereby delivering nebulized medicament solution to the lungs of the patient.