What is the recommended method for using an inhaler?

Using an inhaler correctly is vital for effective medication delivery, particularly in conditions such as asthma or COPD. The recommended method is to inhale one puff from the inhaler. This method ensures that the medication enters the lungs directly, where it can exert its therapeutic effect most effectively.

Inhalation allows for rapid absorption of the medication into the bloodstream via the alveoli in the lungs, leading to quicker relief of symptoms. Proper technique is important to ensure that the correct dosage reaches the target area within the respiratory system. It typically involves shaking the inhaler, breathing out to empty the lungs, placing the inhaler mouthpiece in the mouth, and then simultaneously pressing the inhaler while inhaling deeply.

In contrast, other methods listed are not suitable for inhalers. Oral ingestion would bypass the respiratory tract, suppository administration is not intended for drugs designed to be delivered through an inhaler, and topical application would not deliver medication to the respiratory system but rather to the skin. Thus, inhaling one puff is the only correct method from the options provided.