Medicine Name: Xpect-B Expectorant Mixed Fruit Sugar Free. Composition: Ambroxol (30mg/5ml) + Guaifenesin (100mg/5ml) + Menthol (2.5mg/5ml) + Terbutaline (1.25mg/5ml). Side Effects: Nausea Diarrhea Vomiting Dizziness Headache Rash Tremors Increased heart rate Upper abdominal pain Urticaria Itching Sweating Changes in serum aminotransferase levels Bloating Indigestion.