Dr. Syed K Shahryar M.D.

Acute bronchitis is mainly caused by a viral infection, whereas cigarette smoking is the most common cause of chronic bronchitis.Causes of acute bronchitisAcute bronchitis can be caused viral and bacterial organisms. Out of all, the most common viruses responsible for acute bronchitis include...

Pneumonia is a lung infection that affects the air sacs. The sacs are either filled with fluid or pus causing a cough with phlegm. The symptoms of pneumonia range from mild to severe, which could be life-threatening. People from all age groups, from infants to old age, people with other health...

Inhalers are very popular, lifesaving medications for many who are suffering from asthma and other lung conditions. Knowing about the different types of inhalers and how to use them effectively is very important in controlling the conditions. An asthma inhaler is ideal to deliver the medication for...

Orkambi is an oral drug developed by Vertex Pharmaceuticals and approved by the United States Food and Drug Administration (FDA) for the treatment of cystic fibrosis (CF) in certain patient groups. It is the second drug to be approved for use in patients with CF, after Kalydeco. ...

IntroductionA dry cough is a type of cough that does not accompany the production of mucus or phlegm. Most cases of dry cough are caused by certain allergic reactions from allergens, such as pollutants, dust, or toxins. The body usually tries to expel these irritants by coughing it out. In some...

Chronic obstructive pulmonary disease (COPD) is a progressive disease, which currently does not have a cure yet, as modern medicine has not found a way to reverse the damage done to the airways and lungs. For this reason, there is a slow and long-term development of debilitating symptoms. The...