Dutasteride 2.5 mg availablity

Hello everyone skip to last para for the main Question

I am on finestride 1 mg and oral minox 2.5 mg for past 1.5 years and I started to shed crazy in last 1-2 months, initially i ignored it because I thought my current stack to be good enough for atleast next 5 years

But the shed continuesd and Afterwards I also started noticing lot of miniaturized hair. Therefore I searched up and found dutasteride to be more effective and added it my treatment, taking it twice a week and finestride rest of the days.

Some research says dut 2.5 mg to be the most effective in suppressing the DHT but I can't find any dut 2.5 mg in market Am I missing something or are we suppose to take 0.5 mg tablets 5 times