Medicine Name: Kufril LS Drop. Composition: Ambroxol (7.5mg/ml) + Levosalbutamol (0.25mg/ml) + Guaifenesin (12.5mg/ml). Side Effects: Vomiting Diarrhea Excessive salivation Fatigue Headache Dizziness Rash Numbness of extremity Nausea Increased heart rate Stomach discomfort Palpitations Tremors Muscle cramp.