Concomitant use with sympathomimetic drugs such as decongestants, tricyclic antidepressants, appetite suppressants, and psychostimulants such as amphetamines, or with monoamine oxidase inhibitors that interfere with catabolism of sympathomimetic amines, can cause an increase in blood pressure. Bretylium, Bethanidine, Guanethidine Debrisoquine, Methyldopa, and beta/alpha adrenergic blocking agents. Furazolidone antibacterial may cause monoamine oxidase inhibitor depending on the dose. Furazolidone. Alcohol and other sedatives those work on the central nervous system.