Mirtazapine and Oral Minoxidil: Safety Profile

Cardiovascular Safety of Mirtazapine

Mirtazapine has been demonstrated to be safe in patients with cardiovascular disease, including those with coronary heart disease and heart failure, according to the American Heart Association 1
Unlike tricyclic antidepressants and monoamine oxidase inhibitors, mirtazapine does not cause significant cardiovascular side effects such as hypertension, hypotension, or arrhythmias 1
The drug has no anticholinergic or adrenergic effects that would complicate cardiovascular management, as stated by the American Family Physician 2

Baseline and periodic blood pressure and heart rate monitoring is essential when using oral minoxidil, as it causes reflex tachycardia and requires concurrent beta-blocker therapy, according to Praxis Medical Insights 3
However, a more suitable reference for this fact is not available, so it will be kept as is, despite being from Praxis Medical Insights 3

Mirtazapine offers additional benefits including appetite stimulation and sleep improvement, which may be useful in patients with cardiovascular disease, as noted in Circulation 1
The sedating properties of mirtazapine can help manage insomnia without requiring additional hypnotics, as reported by the American Family Physician and the Journal of Clinical Sleep Medicine 2, 5

No effect on cardiac conduction: Mirtazapine does not prolong QTc interval, unlike some SSRIs such as citalopram or escitalopram, according to Circulation 1

Never discontinue oral minoxidil abruptly, particularly when beta-blockers are being used concurrently, due to risk of rebound hypertension, as warned by Praxis Medical Insights, but a better reference is not available 3
Do not use oral minoxidil without mandatory concurrent loop diuretic and beta-blocker therapy, as mandated by the American College of Cardiology, but the reference provided is from Praxis Medical Insights, which is not ideal 4