EpiPen Jr vs Generic

Cross posted: has anyone used the generic version of the EpiPen Jr? My DS was diagnosed with a severe peanut allergy today and was prescribed the EpiPen Jr at $500. The father says he's found a generic version at CVS Pharmacy for $10-yes, $10 and wants to purchase it instead of paying for half of the EpiPen Jr brand. Before I buy the EpiPen Jr myself at full price I thought I'd ask the Glow Mommas first for any info. Thank you mommies!