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"Medications for a particular illness can sometimes not always work and knowing what to do get your symptoms under control is crucial to your health. Learn what to look for if the drug you are taking for a condition is not working."^^<http://www.w3.org/2001/XMLSchema#string>
<http://health.howstuffworks.com/diseases-conditions/cardiovascular/blood-pressure/if-high-blood-pressure-medicine-is-not-working.htm>