The absorbent properties of this product could interfere with absorption times and/or rates of another substance, so it is recommended that other drugs are not administered at the same time as SMECTA/SMECTAGO (more than 2 hours, if possible). In case of doubts, it is advisable to seek advice from a doctor or pharmacist. In order to avoid possible interactions among several medicines, patient must always tell a doctor or pharmacist what prescription and non-prescription medications patient is taking.