Singulair Side Effects: What to Know (Adults & Children)

Taking any medication can put you at risk for side effects. You can decide if Singulair is the allergy medicine for you, once you know its side effects.

Illness

• In adults and children, Singulair can cause the flu. In children it has also been known to cause diarrhea, chicken pox and ear infections.

Abdominal Issues

• Abdominal problems, indigestion, heartburn and gastrointestinal infections are side effects that may affect both children and adults.

Aches, Pains &Sore Throat

• Headaches and sore throats are side effects that can happen to children and adults who take Singulair.

Sinus &Lungs

• Sinus infections, pneumonia, nasal congestion and laryngitis are some side effects that may affect anyone.

Less Common

• Though less common, some more serious symptoms are possible, including your asthma and allergies becoming worse. Depression, hallucinations, possible liver damage and having an allergic reaction are also possible.