<p>An aerosolization apparatus (100) comprises a housing (105) defining a chamber (110) having a plurality of air inlets (115). The chamber (110) contains an aersolizable pharmaceutical formulation or is sized to receive a receptacle (125) which contains an aerosolizable pharmaceutical formulation. A shield (170) covers at least one of the air inlets (115) or a portion of at least one of the air inlets (115). The shield (170) prevents blockage of the air inlet (115) by a user grasping the apparatus (100) and inadvertently covering the air inlet (115). An end section (140) is associated with the housing (105). The end section (140) is sized and shaped to be received in a user's mouth or nose so that the user may inhale through the end section (140) to inhale aerosolized pharmaceutical formulation that has exited the receptacle (125).</p>