PRN for spasm baclofen 10mg q8H PRN for spasm cyclobenzaprine 5mg q12H for spasm oxycodone-acetaminophen 5mg/325mg q4h for spasm. Which of the following would decrease the therapeutic effects of donepezil?
a. Amantadine
b. Levodopa
c. Diphenhydramine
d. Memantine