A drug delivery apparatus (5, 5, 5, 5) for delivering an aerosol including a drug to a patient includes an aerosol generator (45, 50, 55, 60) for generating the aerosol from a supply of the drug, and a mouthpiece component (30, 30, 30, 30) structured to be inserted into the mouth of the patient. The mouthpiece component is operatively coupled to the aerosol generator for receiving the aerosol and delivering the aerosol to the patient. The mouthpiece component has a ventral surface (85, 85, 85) structured to face a tongue (100) of the patient when the mouthpiece component is inserted into the mouth of the patient and may include a tongue apex positioning element (90, 90, 90, 105) provided on the ventral surface. The ventral surface, and if present, the tongue apex positioning element is/are structured to engage the apex (95) of the tongue of the patient during use of the drug delivery apparatus to properly position the tongue.