Table 2.
Drug | Mechanism | Dosage |
---|---|---|
Primary choices | ||
Midodrine | α1-Adrenoreceptor agonist | 7.5–30 mg daily |
Droxidopa | Norepinephrine prodrug | 300–1800 mg daily |
Secondary choices | ||
Fludrocortisone | Mineralocorticoid | 0.1–0.4 mg daily |
Pyridostigmine | Acetylcholinesterase inhibitor | 60–180 mg daily |
Consider in refractory situations (inadequately tested) | ||
Desmopressin | Vasopressin receptor agonist | 2–4 μg daily (i.m.) |
Octreotide | Somatostatin receptor agonist | 12.5–25 μg daily |
Methylphenidate | Norepinephrine/dopamine reuptake inhibitor | 15–30 mg daily |
Yohimbine | α2-Adrenoreceptor antagonist | 5.4 mg daily |
Indomethacin | Prostaglandin synthesis inhibitor | 50 mg daily |