Possible: interaction between amitriptyline and formoterol as both have a minor effect on electrical impulse conduction in the heart. Notify your doctor that your "QTc interval" may be prolonged on these medicines and that maybe a baseline ekg should be checked. However, s/he may not be concerned since they know more about you. Amitriptyline will not negatively effect asthma control.
Answered 12/2/2020
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