Beclate 200 Rotacaps works by reducing and preventing swelling and inflammation in the lungs. It is known as a “preventer” and is used to prevent the symptoms of asthma, such as tightness in chest, wheezing, breathlessness, and coughing. This allows you to carry out daily life activities more easily and confidently. This drug does not stop an asthma attack that has already started. To control an ongoing asthma attack, use a “reliever” inhaler. Inhaled medicines will not work properly if the inhaler is not used correctly. Ask the nurse or doctor for the right technique.