Drug and Herb Interactions
It’s important to be aware of potential interactions:
- NSAIDs: Non-steroidal anti-inflammatory drugs like ibuprofen or naproxen can increase potassium levels and may reduce the effectiveness of Losartan, potentially affecting kidney function.
- Potassium-Sparing Diuretics: Medications like spironolactone or amiloride, when taken with Losartan, can significantly raise potassium levels.
- Potassium Supplements: Taking potassium supplements along with Losartan can lead to dangerously high potassium levels.
- Lithium: Losartan can increase lithium levels in the blood, potentially making it toxic.
- ACE Inhibitors: Combining Losartan with ACE inhibitors (like enalapril) is generally not recommended due to an increased risk of side effects, including high potassium and low blood pressure.
- Other Blood Pressure Medications: While often combined intentionally, always discuss combinations with your doctor.
Herbal Interactions: Some herbs can also interact with Losartan:
- St. John’s Wort: May decrease Losartan’s effectiveness.
- Licorice: Especially in concentrated forms, can raise blood pressure and reduce Losartan’s effectiveness.
- Garlic: In large amounts, might enhance Losartan’s blood pressure-lowering effect.
- Ginkgo Biloba: Evidence is mixed, but it might affect blood pressure control.
