Our expert says:
Sleepiness and anxiety aren't usually a prominent side-effect with any form of Risperdal, and stiffness is also not too common or severe.
However, any slow-release version of any drug reduces the severity of side-effects, and would also probably delay their onset if they occurred at all. Whereas with ordinary pills or capsules, and even more with an injection, the blood levels of the drug fairly quickly rise, may be a little high enough to cause side-effects for a short while, and then fall to lower levels ; a slow release version is designed to release the drug only slow, to more gradually build up to a steady level below that at which side-effects would usually happen, and then to hold at that level until the next dose is due.
So you might well not experience side-effects on a slow-release version of the drug.
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