If you can find some at that price AND decide to buy/use them, please make sure that the lady you take to bed is a NURSE & knows how to get you to hospital FAST!!! Otherwise, the 'stiffness' you get might well be a PERMANENT one for the whole body & one that you will not know anything about!!!
Go on to WebMD or similar via internet & check ALL your allergies & history of illnesses against the advice given on those sights. WE are unable to diagnose your ailments on this thread & only YOU know what they really are & if either of the pills you speak of would be dangerous to your health when taken. ~ Grahame.