SINUS 12 HOUR (PSEUDOEPHEDRINE HCL) TABLET, FILM COATED, EXTENDED RELEASE [L. PERRIGO COMPANY] if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson’s disease), or for 2 weeks after stopping the MAOI drug. If you do not know if your prescription drug contains an MAOI, ask a doctor or pharmacist before taking this product. • heart disease • high blood pressure • thyroid disease • diabetes • trouble urinating due to an enlarged prostate gland • nervousness, dizziness, or sleeplessness occur • symptoms do not improve within 7 days or occur with a fever