Study and Evaluation of Dry Powder Inhaler-A Review

Dosage form used to deliver drug via lungs can be used to treat asthma, COPD, or Diabetes, For formulation of such dosage form require dry powder with very short list of expedients such as stabilizer, solubilizer, property modifier ( flow enhancer ) For which different secondary processing parameter are been carried out such as milling , spray drying, lyophilization. Now in today market different type of container are been packing for dry powder inhaler there are also been different evaluation test for the DPI.