Short answer: If you already take medication that lowers blood pressure or widens blood vessels, combining them may push your blood pressure too low — ACE inhibitors, ARBs, calcium channel blockers and diuretics specifically named.
Why this caution is framed around who's most affected
This matters especially for older adults, who are both the main audience for memory supplements and the most likely group to be on these prescriptions — a direct, honest acknowledgment of this overlap.
Why naming four specific drug classes matters
ACE inhibitors, ARBs, calcium channel blockers and diuretics — four specifically named categories give you something concrete to check against your own prescriptions.
⚠️ Worth knowing: this is not a formality — these are documented interactions, a direct, unhedged statement worth taking seriously.