The usual dose for Mestinon is 60 mg each 4 hours but could be modified up- or downwards according to the needs, I went up to 420 mg per day…
There is also a special form of Mestinon: Timespan (180 mg) which has a delayed action and which allows you to spend a whole night without problem.
Mestinon might not be effective for ocular MG, so talk to your neuro about how you feel and describe the evolution of your symptoms throughout the day and the relationship with the medication.
This will allow him to adjust your treatment.
Maurice.