Promote medicines

I am into medical business, selling medicines and injections in my country. Also i am an authorized seller of these medicines.

What advertisement platform should i use so i can sell these products in many countries like Us, uk, aus etc.

Thanks

You can make a website with your product detail pages from where your customer can buy.You can get backlink to that from high DA health websites from their articles related to your products. You can do local SEO.You can run social media ads.Register your website/store on google business.

Getting traffic from backlinks will take longtime
I need something like just put balance and start running advertisemnt.

Do you know any network which allows my niche.