Myteka 4mg tablets contain montelukast, which is used to treat asthma and allergies. It works by blocking certain substances in the body that cause inflammation and narrowing of the airways. The pack size is 14 tablets, divided into 2 blister packs of 7 tablets each. Myteka is typically taken once daily, in the evening, and should be taken regularly to be effective in controlling symptoms. It is important to follow the instructions of your healthcare provider and not exceed the recommended dosage.