A Review on Dry powder Inhaler (Review Article)

Author(s): Patnam Deepika*, Sheri Sowmya, Paidigummal Uday Kumar, Pittala Pavithra and Pittu Vishnu Priya

Abstract: A Dry powder inhaler (DPI) is a device that disperses medication into the lungs. DPIs are frequently used to treat respiratory conditions such as asthma, bronchitis, and COPD. In recent years, interest in Dry powder inhalers as an effective and ecologically responsible means of medication delivery to the lungs has increased. Dry powder inhaler can meet these goals only with an efficient metering system, and a carefully selected device. It is mainly classified into three classes: Nebulizer, pMDI, DPI. DPIs, which administer medication to the lungs in the form of a dry powder, are an alternative to pMDI. To ensure that the patient receive the same dose each time at a varied airflow rate, API particles must be present in the size range of 1 to 10m.DPI are formulated using four types of formulation strategies such as; Drug additive, Drug carrier, Drug free, Drug carrier additive. The “Twin Stage Impingner” completes the investigation of lung deposition. The inward breath device, which is primarily divided based on measurements into single-unit and multi-dosage stores, is crucial to achieving appropriate delivery of breathed in medication to the lung.

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