I can understand where your coming from. My guess is your struggling with phychological issues as opposed to being allergic to anything in Dutasteride gel caps and you have every right to worry. Fear and anxiety are what drives us primitively to make decisions without the aid of reason. But this can be overcome with a will to have clarity. Confidence in your desicion making is key.
My advice: Existential clarity (please look up words if you don't know what they mean)
There is nothing in existence that can truly harm you. Another way of looking at it is your already "harmed" by being aware of your existence. Fear and anxiety are essentially causing your existence to become foggy, distorted, or unclear. Simply allow yourself to be free because there is nothing in this world that actually matters. We as human beings only think of things as important because we are filled with curiosity and unsatifaction with everything. This is our nature which is manifested in our ability to percieve our own existence and therefore our non-existence or our innate metaphysical nothingness. In other words, the ability of individual awareness inevitabally leads us to human drama which is what your really suffering from.
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I take 1 Mg Duprost daily and I have experienced very mild testicular pain but it is not bothersome and it seems to be going away. There is no way for me to advise you on whether to slang or eat your Avodart, your going to have to make a clear desicion on your own.
E-mail me if you decide to slang off your meds.