Inhalation Drug Delivery System Designnebulized Drug Delivery

Nebulizers are widely used today for drug delivery to the respiratory tract and are particularly useful for the treatment of hospitalized or nonambulatory patients. Fundamentally, there are two general types of nebulizer systems, the ultrasonic and the air jet.

In ultrasonic nebulizers, ultrasound waves (Fig. 2) are formed in an ultrasonic nebulizer chamber by a ceramic piezoelectric crystal that vibrates when electrically excited. These set up high-energy waves in the solution, within

Coping with Asthma

Coping with Asthma

If you suffer with asthma, you will no doubt be familiar with the uncomfortable sensations as your bronchial tubes begin to narrow and your muscles around them start to tighten. A sticky mucus known as phlegm begins to produce and increase within your bronchial tubes and you begin to wheeze, cough and struggle to breathe.

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