What's happening
Hawthorn (Crataegus) has cardiovascular effects including vasodilation and mild ACE inhibition. Can enhance effects of BP medications, causing hypotension.
Recommendation
Use cautiously with BP meds. Start low and monitor blood pressure.
Timing
Watch for dizziness, lightheadedness
Sources
- — Cochrane Database of Systematic Reviews
- — PMID: 18254076