Medicine Name: Respira LS Syrup. Composition: Ambroxol (30mg) + Levosalbutamol (1mg) + Guaifenesin (50mg). Side Effects: Nausea Vomiting Diarrhea Upset stomach Stomach pain Allergic reaction Dizziness Headache Rash Hives Tremors Palpitations Muscle cramp Increased heart rate.