Pulberinhaler

Pulberinhaler is a type of inhalation device that delivers medications to the lungs in the form of a dry powder. It is commonly used for conditions such as asthma and chronic obstructive pulmonary disease (COPD) and may contain bronchodilators, corticosteroids, or combination therapies. Unlike metered-dose inhalers, powder inhalers do not rely on a propellant; instead, the patient’s own inhalation energy disperses the powder and carries the dose into the airways. Devices can be capsule-based, blister-based, or use pre-loaded doses in a chamber, with examples including HandiHaler (capsule-based), Diskus (blister-based), Turbuhaler, and Ellipta.

How it works and administration: Most powder inhalers are breath-activated and require the user to exhale away from the device, place the mouthpiece in the mouth, and inhale rapidly and deeply to disperse the powder. For capsule-based devices, the user must pierce the capsule and inhale the powder released from it. Proper technique is essential, as insufficient inspiratory flow can reduce drug delivery.

Advantages and limitations: Pulberinhalers avoid propellants and can be compact with dose counters, but they depend on the patient’s inhalation effort and technique. They are sensitive to humidity and moisture, which can affect dose delivery. They may be less effective in very young children or during severe respiratory symptoms when adequate inspiratory flow cannot be generated. Routines for cleaning and mouthcare are sometimes recommended, especially with inhaled corticosteroids.

See also: dry powder inhalers, other inhaler types, inhalation therapy.