Hi Tom:
According to my MS neuro Baclofen should be taken three times a day to be effective.
40 mgs. is not a high dose, apparently you can take up to 80 safely, but obviously your doctor wants to monitor your progress carefully, which is a good thing.
The pharmacist told me that on a bad day it is safe to add another 5 mg. once in a while to take the edge off.
Torticollis is a nasty and painful condition.
Hope you find some relief. If you can, take naps if you feel sleepy from the drug. Usually you will wake up refreshed (if the pain doesn't keep you awake).
Best wishes...