Comment by mhb

Drug companies produce drugs to make money. There is a huge investment. They maximize revenue by price discrimination to recover the cost of the good drug and all the drugs that didn't work. The US is a rich country. People in other countries can't pay as much for the drug. To maximize revenue the drug company sells the drug at a lower price to those people.

More generally, price controls lead to less supply. Drug price controls will result in fewer new drugs. Minimum wage laws result in no workers doing work that is worth less than minimum wage. Anti- price gouging laws result in less bottled water and fewer generators after a hurricane. The principle is universal despite promises of delightful state run grocery stores.

Praise for price-gouging: https://www.grumpy-economist.com/p/praise-for-price-gouging