Is Ephedra/Ma Huang Safe with Caffeine?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Do not combine. Seek immediate medical attention if you experience rapid heartbeat, chest pain, or severe headache. Inform your doctor of all energy supplements being used.
Why this interaction occurs
Combined stimulant effects cause additive sympathomimetic activity, significantly elevating blood pressure and heart rate, increasing risk of hypertensive crisis, stroke, and cardiac arrhythmias.
Evidence
Evidence level: strong.
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 24,547 reports mentioning Caffeine. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Caffeine + supplement combination on this page.
FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.
Frequently asked questions
Related interactions
All Ephedra/Ma Huang interactions → · All Caffeine interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.