Dry powder inhalation: The micronized drug or/and carrier is in the form of single-dose or multi-dose storage, using a special dry powder inhalation device, and the patient actively inhales the powdered drug.

Nebulized inhalation: The medicated solution, emulsion or suspension is placed in a special device, and the contents are released in a mist with the aid of an appropriate atomizing system during use for patient inhalation.

Quantitative inhalation aerosol: Dispense the medicated solution, emulsion or suspension together with a suitable propellant into a pressure-resistant container with a special valve system, and use the pressure of the propellant to spray the contents into a mist. Out.

Nasal spray refers to the raw materials or the appropriate excipients filled in a special device. When used, the contents are released as a mist by the pressure of a manual pump, high-pressure gas, ultrasonic vibration or other methods, and used for lung inhalation or Preparations sprayed directly to the mucous membranes and skin of the cavity