Ambroxol should not be taken concomitantly with antitussive drugs that can inhibit cough reflex.
Ambroxol should be used with caution in patients with a weakened cough reflex or disturbed mucociliary transport due to the possibility of sputum congestion.
In seriously ill patients, aspiration of diluted sputum should be performed.
In patients with bronchial asthma ambroxol can strengthen cough.
Do not take ambroxol just before bed.
In patients with severe skin lesions - Stevens-Johnson syndrome or Lyell's syndrome - in the early phase, fever, body pain, rhinitis, cough and sore throat may appear. With symptomatic treatment, it is possible to erroneously administer mucolytic agents, such as ambroxol hydrochloride. There are isolated reports of the detection of Stevens-Johnson syndrome and Lyell's syndrome, coinciding with the appointment of the drug; but there is no causal relationship with taking the drug.
With the development of the above syndromes, it is recommended to stop treatment and immediately seek medical help.
In case of impaired renal function ambroxol should be used only on the advice of a doctor.