Mucolite Syrup Ambroxol 30 mg per 5 ml is generally well tolerated and can be very helpful in easing cough and clearing mucus. The usual dosage is: adults and children over 10 years — 5 ml three times daily; children 5 to 10 years — 5 ml twice daily; children 2 to 5 years — 2.5 ml three times daily. For long-term use, a doctor may reduce or adjust the dose. While side effects are uncommon, some people may experience mild nausea, stomach upset, or, rarely, allergic reactions. Since it gave you relief, if you are over 10 years old, you can continue with 5 ml three times daily, but always stay within the recommended dose and consult a doctor if symptoms persist or worsen.