Can you import gravol?

Basically I deal with motion sickness. However, only one Japanese medicine I’ve found has gravols active ingredient of Dimenhydrinate (the alternatives don’t work, I’ve tried unfortunately). But medicine being ridiculously expensive here, 6 pills of 40mg is about 800 yen, whereas Walmart brand would have 12 pills of 50mg for 2.73$, or 30 for 6$. Sometimes I may have to take it twice a week, so the quadruple cost per MG is tough to swallow. I’m hoping to just import the 24 100mg pills from gravol brand itself as it would last me months.
Thank you 🙂