Knollflow 250 capsule is a combination of two medicines used to treat asthma and chronic obstructive pulmonary disorder. It opens airways and makes breathing easier, but its effectiveness depends on regular use. It should not be used to relieve sudden asthma attacks and should be used with a quick-relief inhaler. Common side effects include nausea, vomiting, respiratory tract infections, headaches, and increased heart rate. Preventing these symptoms can be done by rinsing the mouth and throat with water or brushing teeth after inhaling. It is important to avoid asthma triggers and avoid smoking. Consult a doctor before taking this medication if you have kidney or liver diseases.