If the pills are the regular gel type you can open them up and pour half in a glass of water to separate them. Then just put it back together with the rest in it and save that for later. I do this quite a bit.
Usually, schizophrenia-derived anhedonia occurs as early as the first psychotic break (and sometimes presents itself even before that without reaching a clinical threshold). In your case, after many years of the disease, it’s probably due to a recent change in medication…