I'm visiting Japan (Tokyo) for the first time soon!

I know very little about visiting Japan. I'm trying to absorb some quick advice from websites, but is there anything I should prepare in advance? What do you wish you'd known?

So far as a US traveler to Japan, some things I almost missed:

1. US plugs should work, but voltage is lower so check device voltage or being converter

2. Stimulant ADHD medications are strictly illegal other than Concerta (as in "US traveler arrested for carrying personal Adderall Rx")

3. Food substitutions are generally impolite, so take care in explaining food allergies as a reason. Japanese restaurants want to be careful with food allergies, but communication/translation barriers can often be difficult in explaining that gluten is generally in many things like tamari/shoyu/miso.

4. Gluten is very hard to avoid in Japan, especially since soy sauce (and many sauces) now generally uses wheat. Candies also use gluten sweeteners, and labeling of that is not required.

#JapanTravelTips

@saraislet let me preface this by saying I havenโ€™t YET had to attempt this process but it was something I was looking into for preparation.

My understanding on the medication front is that the biggest barrier is lining up your paperwork. Youโ€™d need two separate approvals to import medication that are classified as narcotics, both from the regional health department that covers your arrival airport. https://www.us.emb-japan.go.jp/itpr_en/bringing-medications-to-japan.html

I donโ€™t know how difficult the approval process is but there is a process at least.

Bringing Medications into Japan

Ministry of Foreign Affairs of Japan
@derekheld from my understanding, anything in the methamphetamine or dextroamphetamine classification is strictly prohibited, but lisdexamfetamine (Vyvanse) *is* permitted with prior approval. None of those are categorized as narcotics

@saraislet ok I think Iโ€™ve got a slightly better understanding now. This seems to be the primary list: https://www.ncd.mhlw.go.jp/dl_data/keitai/list.pdf

Anything with a check is 100% banned no matter what. Anything without a check can be brought in, with or without papers depending on exactly which item and amounts. So like methylphenidate is on there but not banned so it can be brought in. And for some of them there is preapproved amounts you are allowed to have listed here: https://www.ncd.mhlw.go.jp/dl_data/keitai/total.pdf

@saraislet my wife has ADHD and Japan is one of my dream vacations so Iโ€™ve been trying to map out everything weโ€™d need to do for her to be able bring her medication.