cipro can imflame th tenden, it was so bad for me tht my calf swelled to twice th size tht it sh ld b.b aware of this when ur using em, and doing hard workout,u can rip ur tenden in half like i did.it target th shoulder and achilla tenden,dont know how many time i warned people here about it.id i,m a broken record plz excuse me ok.dont take cipro if u can take a diff antibotic,ther r two antibotic tht r bad for th tenden