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What side effects can this medication cause?
Possible side effects from losartan may include:
headache
back pain
diarrhea
fatigue
nasal congestion
Tell your doctor if any of these symptoms are severe or do not go away:
diarrhea or upset stomach
muscle pain or cramps
dizziness
insomnia
If you experience any of the following symptoms, call your doctor immediately:
difficulty breathing
closing of the throat
swelling of the lips, tongue, or face; or hives
little or no urine.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.
Why is this medication prescribed?
Dosage and using this medicine
What special precautions should I follow?
What should I do if I forget a dose?
What storage conditions are needed for this medicine?
In case of an emergency/overdose