Table 3.
Pharmacologic treatments for neurogenic orthostatic hypotension
Modified from [1]
Treatment | Recommended dosing regimen | Drug class and notes | Safety notes |
---|---|---|---|
FDA-approved for the treatment of symptomatic neurogenic OH | |||
Droxidopa | 100–600 mg three times/day (dosed morning, midday, and 3–4 h prior to bedtime) or tailored to each patients’ needs | Pro-drug of norepinephrine | Supine hypertension, headache, dizziness, nausea, and fatigue; caution in congestive heart failure and chronic renal failure |
Midodrine | 2.5–15 mg twice or three times/day (dosed morning, midday, and 3–4 h prior to bedtime) | Direct alpha1-adrenoreceptor agonist | Supine hypertension, piloerection, scalp itching, and urinary retention; caution in congestive heart failure and chronic renal failure |
Not specifically FDA-approved for neurogenic OH | |||
Fludrocortisone | 0.1–0.2 mg/day; little benefit from observed dose beyond 0.2 mg/day | Synthetic mineralocorticoid. Fludrocortisone is a volume expander that increases sodium reabsorption and enhances sensitivity of alpha-adrenoreceptors |
Supine hypertension, hypokalemia, renal failure, and edema; caution in congestive heart failure |
Pyridostigmine | 30–60 mg twice or three times/day | Acetylcholinesterase inhibitor. Marginal efficacy in nOH | Abdominal cramps, diarrhea, sialorrhea, excessive sweating, urinary incontinence |