Singulair Side Effects

Common Singulair side effects in Adults
Headaches
Stomach pain
Cough

Common Singulair side effects in Children
(occurring in at least 2 percent of children) included:

 

• Sore throat
• The flu
• Fever
• Sinus infection
• Diarrhea
• Indigestion or heartburn
• Ear infection
• Laryngitis (inflammation of the voice box, often causing a loss of voice)
• Headaches
• Chickenpox
• Tooth infection
• Vision changes
• Cough
• Abdominal pain (stomach pain)
• Eczema
• Pneumonia
• Conjunctivitis ("pink eye")
• Tonsillitis.

Other common Singulair side effects (occurring in 1 to 2 percent of people) included:

 eakness or fatigue

• Fever
• Trauma (accidental injury)
• Gastrointestinal infections
• Tooth pain
• Dizziness
• Nasal congestion
• Rash.

Serious Singulair Side Effects

• Worsening of asthma or allergies
• Depression (see Singulair and Depression)
• Hallucinations
• Signs of liver damage, such as:
   
  • Yellow eyes or skin
  • Dark urine
  • Upper abdominal pain

 

• Signs of an allergic reaction, including:
   
  • Unexplained rash
  • Hives
  • Itching
  • Unexplained swelling.