In case of adverse reactions to medications, the FDA should be contacted for further investigation and guidance. The FDA is responsible for ensuring drug safety and efficacy in the U.S. Other agencies like the CDC, OSHA, and DEA serve different functions not directly related to medication safety. ;
The federal agency that should be contacted for adverse reactions related to medications is the FDA (Food and Drug Administration). The FDA oversees drug safety and can take actions to protect public health based on reports of side effects. Other agencies, such as the DEA, CDC, and OSHA, have different responsibilities that do not focus on medication safety.
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