How do you address akathisia for patients who have had otherwise an excellent response to their antipsychotic treatment?  

Try lowering the dosage of the antipsychotic, if possible. If this is not effective and the patient is on a high-potency FGA medication, try switching to a lower-potency antipsychotic. If the above is not possible, suggest treatment with propranolol (if there is no contraindication) at 10 mg twice d...

I agree with Dr. @Schrift. In an acute setting, can also give diphenhydramine (25 to 50 mg IV) or benztropine (1 to 2 mg IV). If this is effective, these medications are given in the PO form for 2-3 days following.