Singulair side effects

What side effects can Montelukast have?

Below you will find the most important information about possible known side effects of montelukast.
These side effects do not occur, but you can. Because every person reacts differently to medication. Please also note that the type and frequency of side effects may vary depending on the drug formulation (eg tablet, syringe, ointment).

Common side effects:
In children between six months and two years:
diarrhea, hyperactivity, asthma, skin inflammation (eczema), rash.
For children between two and five years:
For children between six and 15 years:
For adults and adolescents from 15 years: Headache, abdominal pain.

Very rare side effects:
diarrhea, dry mouth, indigestion, nausea and vomiting, increased liver enzymes (transaminases), gall bladder, hepatitis, increased bleeding, bruising, heart palpitations, fatigue, weakness, malaise, water retention (edema), Hypersensitivity reactions (itching, hives, skin rash, facial swelling (angioedema), proliferation of certain white blood cells (eosinophilia), anaphylactic shock), arthritis, muscle pain, dizziness, nightmares, hallucinations, drowsiness, sleep disorders, abnormal sensations (tingling, burning, paresthesia), irritability, Restlessness, seizures (epilepsy), vasculitis.

What interactions does Montelukast show?

Please note that the interactions may vary depending on the drug formulation of a drug (eg tablet, syringe, ointment).

When montelukast is taken with antiepileptic drugs such as phenytoin or phenobarbital and with rifampicin, an anti-tuberculosis drug, its action is attenuated by accelerated liver clearance.

Potential Singulair side effects may include: