How Does Health Insurance With A Deductible Work? 
Health insurance plans may have several deductibles . The most common deductible is your major medical deductible . Some plans also have a prescription drug deductible . The deductible is an amount you must pay before the health insurance carrier pays their portion of the claim . If you have a $ 300 Rx deductible , you must pay the first $ 300 of your annual prescription drug costs before the insurance carrier pays anything toward the cost of your medications . 