[UnwashedPeasant]

"do you know of reputable sellers for this?"

A year ago, I checked with about 8 or 10 sellers on indiamart.com. The following looked good and ranged about $0.10 to $0.17 per pill, plus $35 to $45 shipping, and probably Paypal or Wise fee. Here they are in order by the impression I got:

https://www.shreejiimpex.co.in/
https://www.kay-biotech.com/
https://www.onlinepharmacysolution.com/

It can't hurt to ask for multiple quotes. You can specify a brand if you have a preference.

[UnwashedPeasant]

I forgot to mention that shipping is 2 to 4 weeks from India.

If you are in a hurry, the following pharmacy offers fast shipping (as fast as 2 days), but the prices are probably $0.60 per pill:

https://www.indiamart.com/medihome-pharma/