An article in the current BMJ expresses great concerns about the rise of counterfeit, substandard and falsified drugs coming on the market from India and China. This will be made much worse if people try to get hold of the medicines they use and that won't be available, from the internet, etc.
One of the many elements the article mentions too, is that a very low Sterling, makes importing medicines much more expensive. Compared to the Swiss France, for instance, Sterling has fallen by over 60% in 10 years (I know, for sure !) .. which means that 60% is added to the cost.