I've been asking around for ten years for an effective method of reducing spasticity. It has become a much less common problem in adult hemipelgia over the last 20 years. It can be controlled temporarily with seating and bed positioning - and early++ WB. Long term management is different and very controversial. I do not support the theory that serial casting should be done for 6 weeks, every week, when the result is non-functional.
Lots of weight-bearing, upper and lower limbs, does help if done immediately prior to transfer practice, etc.
baclofen is good but makes the patient drowsy. If I come across any good references/reviews will post them