Thanks for your question on Health Care Magic.
I can understand your mother's situation and problem.
In my opinion, you should not give codistar syrup.
It is not sugar free syrup. So it will disturb glycemic control in your mother.
She is also having breathlessness along with
dry cough.
So possibility of
bronchitis is more.
It is due to
lung infection and diabetic patients are prone for lung infection.
So we should first rule out bronchitis in her case.
So
consult pulmonologist and get done clinical examination of respiratory system, chest
x ray and PFT (Pulmonary Function Test).
Chest x ray is needed to rule out lung infection.
PFT is must for the diagnosis of bronchitis.
It will also tell you about severity of the disease and treatment of bronchitis is based on severity only.
She may need inhaled bronchodilators and inhaled corticosteroid.
So better not to give codistar. First diagnose herself and then start appropriate treatment.
Hope I have solved your query.
Wishing good health to your mother. Thanks.