Yes, you may want to avoid some medicines while taking an angiotensin receptor blocker (ARB). Most doctors recommend that you DO NOT TAKE these prescription medicines with an ARB:
Angiotensin Converting Enzyme Inhibitors (ACEIs). Taking an ARB with an ACEI can be dangerous. It can cause very low blood pressure and kidney problems. It can also cause chemical imbalances, such as high potassium levels.
Aliskiren. Taking an ARB with aliskiren can be dangerous. It can cause very low blood pressure and kidney problems. It can also cause high levels of potassium in the blood. People with diabetes should never take these medicines together. People with kidney problems should avoid the combination.
Lithium. Taking ARBs with lithium can cause dangerous levels of lithium in the body
Digoxin. The ARB called telmisartan (Micardis) may not be a good choice for people taking digoxin. It can cause a rise in the digoxin blood levels. This can be dangerous. This effect does not happen with any of the other ARBs.
Potassium-sparing Diuretics. Taking potassium-sparing diuretics with ARBs may raise the level of potassium in the blood. Some doctors say to avoid taking them together.
Other medicines to AVOID, if you can, are:
Nonsteroidal Anti-inflammatory Drugs (NSAIDs). Taking NSAIDS with ARBs may cause kidney problems for the elderly and people taking diuretics. They can also make kidney problems worse for people who already have kidney problems. They can also raise blood pressure.
Potassium Supplements or Potassium-containing Salt Substitutes. Potassium supplements can help treat low levels of potassium in the blood. Taking these with ARBs may cause too much potassium in the blood. Some doctors say to avoid taking them together.
If you must take one of these with an ARB, you may need regular check-ups with your doctor.
This is not a complete list. Tell your doctor about all the medicines you take.
Stay safe – tell your doctor what you take!