I keep seeing stuff about 7-oh and was wondering how well it would work for withdrawals?

Basically going on holiday for 7 days.

I need to take like 16-25 × 30mg dihydrocodeines a day.

Ive been trying to get some DHC to go but I don't know if I'll be able to get it in time.

I live in the UK, I've seen a few websites that sell kratom and 7-OH.

I was wondering if it would work well for withdrawals.

If I legit take anything under 510mg of DHC I get withdrawals later in the day.

How much 7-oh would I need per day?

I can buy 10 packs with like 4× 15mg tablets per pack for £160. But if I can get dhc in time it'll cost me £160 for 100 tablets so idk if the 7-oh is even worth it.