Discontinue in case of HTN, tachycardia, palpitations or cardiac arrhythmias, nausea or any other neurological sign. Patients receiving digitalis, patients w/ cardiac arrhythmias, HTN, history of MI, DM, bladder neck obstruction, positive anamnesis of bronchospasm; stenosing peptic ulcer, pyloroduodenal obstruction & obstruction of the vesical cervix. Not recommended w/ reversible MAOIs & moclobemide. Concomitant use w/ other sympathomimetics including decongestants, anorexogenics or amphetamine-type psychostimulants, antihypertensives, TCAs & other antihistamines; ergot alkaloid vasoconstrictors. Preferable to discontinue treatment 24 hr before anaesth. Discontinue at least 48 hr before skin tests. Rare hereditary problems of fructose, galactose intolerance, Lapp lactase deficiency, glucose-galactose malabsorption or sucrase isomaltase insufficiency. Should not be used in patients w/ renal or hepatic impairment; elderly >60 yr. Should not be used during pregnancy or breast-feeding. Pseudoephedrine: CNS stimulation w/ convulsions or CV collapse w/ accompanying hypotension, especially in childn, elderly, or in cases of overdose. Acute generalized exanthematous pustulosis. Increased BP, tachycardia, manifestations of CNS excitation at the recommended dose. Risk of abuse; toxicity in increased doses; tolerance; depression following rapid withdrawal. Positive doping test.