Adverse Reaction to a Medication or Drug
Table of ContentsView AllTable of ContentsTypesSignsvs. Side Effectsvs. Adverse Effectsvs. Allergyvs. Adverse EventsWhen to See a Provider Table of ContentsView All View All Table of Contents Types Signs vs. Side Effects vs. Adverse Effects vs. Allergy vs. Adverse Events When to See a Provider An adverse reaction is an undesirable reaction to a medication that’s been taken correctly. It may occur immediately, hours, or years after starting a drug. Reactions might include minor side effects like mildheartburnor life-threatening issues such asheart failure....