Take the missed dose of the regular tablet, orally disintegrating tablet, extended-release (long-acting) tablet, or extended-release (long-acting) capsule as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
If in doubt, ask your pharmacist for advice.

I'm sorry to hear that. I often find myself in a vicious cycle when my tremors are more severe but I also learned that the tremors are highly impacted by anxiety and the worse the tremors, the more anxiety I have and then the tremors worsen and so on and so on. I hope your MD is able to help you but while you are waiting, think about trying controlled breathing. My favorite is box breathing. I breath in deeply to a count of 8, hold my breath for count of 4 and breath out to a count of 8 then hold my breath for another count of 4. I do this three times and find that I can't be anxious while I focus on breathing. Crazy but true and so simple and free.
I pray your tremors subside.
Maria

I can feel the tremors in my back muscles that's how I know when my medicine is kicking out. I feel them about 15min before I start shaking.

I use an app called My Therapy....I rarely miss a dose, find it very helpful.

I’ve read you should take it right away unless it’s close to your next dose in which case just take the upcoming dose.