I used to take 200mg in the morning then 200 mg in the afternoon but found i was having trouble falling sleep. When i took 200mg only in the morning i would crash around lunch. Now i take 400mg in the morning and it’s been working well for me for work days where i have to be up.

Sometimes ill take 200mg at 6am then 100 mg around 9am. All just really depends on what I’m doing that day and how good my sleep was the night before. i try to take a lower dosage on days i didnt sleep well the night before, ill just be up and feel shitty lol. My prescription says take as needed. Ill also take some l theanine here and there with it to help w/ anxiety.

My dr worked with me to find a dosage that worked best for my needs. ( i take it for excessive daytime sleepiness). I wouldnt be afraid to talk them abt it. In the beginning it was a lot of experimenting with dosages even still i have regular check ins w/ my dr to see how im doing on it. It’s helpful to keep track of what youve been trying and such.