Thanks for posting your query.
The drug Montelukast
(Montus) is meant to be used long term in the management of allergic problems or asthma.
The dose you are on 5 mg is low dose only. You should not have any problems as long as you stick to the prescribed dose.
The side effects that you may experience include nausea
, or indigestion
. These symptoms reduce once your body gets used to the drug.
If you feel any of the side effects are severe then consult your doctor about change of drug.