Evidence Summary
Evidence Level: Anecdotal
Mechanism: Not specified
Safety: Limited specific safety data in these populations. Review full prescribing information and consult specialist. Many agents used off-label or investigational.
Dosing: See linked studies/trials for reported doses and durations; typical protocols vary widely.
Observational + guideline support for volume expansion in low-BP POTS. ~43% success obs. Low evidence per guidelines. Monitor electrolytes, supine HTN. For hypovolemic phenotype.