What an odd way to phrase this. The actual body of the article is a tad more clear.

> Patented medicines will face a 100% tariff entering the US

This is paid those importing the medicines, and passed on to the consumers.

Patents give you monopoly pricing power and patented drugs have huge gross profit margins. Given that, while part of the price increase will be passed on to consumers sellers will also cut prices.

To put it simply if they could charge higher prices without losing volume they already would because no one else can produce that drug so there is no competition to keep prices down.