Welcome to Just answer !
Well i believe these symptoms of yours such as involuntary movements, muscle spasm and numbness which had abrupt onset few days back and have been consistent in their presentation, could very well be Extrapyramidal symptoms which are serious side effects of anti psychotic drugs including risperidone and these side effects when observed need to be taken with utmost severity and dealt with immediately even requiring stopping the anti psychotic drug.
Kindly see the link below for better understanding of Extrapyramidal symptoms and their relation with anti psychotic drugs.
So i reckon you report to your GP immediately and also contact your psychiatrist to give you an appointment as soon as possible citing potential onset of extrapyramidal symptoms..
As far as the management of these extrapyramidal symptoms are concerned the following steps shall be discussed with your doctor and carried out as soon as possible.
-- Stop risperidone.
-- Start Cogentin ( benzatropine ) or Trihexylphenidyl , any one of these two anti cholinergic drugs at dose of 2 mg three times a day and continue on it until the symptoms subside.
-- A benzodiazepine drug like clonazepam or lorazepam shall be used at dose of 0.5-1 mg twice a day for initial few days to allay associated anxiety , restlessness and distress and to bring calm and relaxation.
-- If the need arises when things do not improve then a dopamine agoinst drug like Amantadine at dose of 100 mg twice a day orally or Bromocriptine at dose of 1.25 mg twice a day , which may be raised to 2.5 mg twice a day after 2 weeks if the need arises.
Kindly discuss this with your GP and your psychiatrist if you can contact him early.
I hope this helps.
Wish you all the best.
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