The following information lists the most common and easily avoided sources of adverse drug reactions concerning blood pressure medications. Keep this list handy and review it whenever you bring home a new prescription for a blood pressure medication - even after your doctor and pharmacist have vetted it with you.
- ACE inhibitors such as lisinopril interact with specific classes of diuretics such as spironolactone - so called potassium sparing diuretics. May increase potassium levels dramatically, which can cause irregular heartbeats or death.
- ACE inhibitors interact with potassium. May increase levels of potassium.
- Some calcium channel blockers interact with grapefruit juice. May increase absorption of calcium channel drug, and thus increases the effect and may cause rapid drop in blood pressure.
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