Monoamine oxidase inhibitors (phenelzine, isocarboxazid), clonidine , selegiline , guanethidine, and ergotamines (ergotamine tartrate, dihydroergotamine mesylate) may increase blood pressure when used at the same time as ephedrine. Methyldopa or reserpine may reduce ephedrine levels in the blood and thereby lessen the effectiveness of ephedrine. Tricyclic antidepressants ( desipramine , amitriptyline , doxepin , and imipramine ) may block the effect of ephedrine. The carbonic anhydrase inhibitors acetazolamide and dichlorphenamide may increase ephedrine blood levels and the risk of side effects from ephedrine. Patients taking any medications should consult with their physician or pharmacist before starting OTC ephedrine.
We know from the calls we get to our helpline that many people with asthma have concerns about taking their medicines . For some people, taking medicines every day can feel complicated. It might feel strange to be asked to take a preventer medicine every day, even when you feel well. You may be finding that getting into a routine to take an inhaler every day is tricky when life can be busy and you're juggling family, work, or feeling unwell. Or you may worry about possible side effects from taking medicines for a long-term condition.