Furosemide
Brand: Lasix
No boxed warning on the current FDA label.
- Caution
- Potent diuretic: excessive doses cause profound water and electrolyte loss, so dosing is individualized and electrolytes are monitored.
Common side effects
- Frequent urination
- Low potassium
- Dizziness
- Dehydration
- Hearing changes at high doses
Key interactions
- NSAIDs can blunt its effect
- Adds to blood-pressure lowering of other drugs
- May raise lithium levels
- Caution with other ototoxic drugs
Counseling points
- Take earlier in the day to limit nighttime urination
- Rise slowly to reduce dizziness
- Report muscle cramps or weakness
- May need potassium-rich foods or supplement
- Report ringing in the ears
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