Medicine Name: Respira Expectorant Liquid. Composition: Ambroxol (15mg) + Guaifenesin (50mg) + Salbutamol (1mg). Side Effects: Nausea Vomiting Diarrhea Stomach pain Upset stomach Allergic reaction Dizziness Headache Rash Hives Tremors Palpitations Muscle cramp Increased heart rate.