I feel so bad after being unable to buy my father's medicine because it is so expensive and the generic medicines were already bought by the others

People don’t believe it but I swear by holistic medicine and it works! It has kept me healthy for the last 30 years. Has really saved me, and is affordable if you know where to get it and what to look for.

Try mail order/online order pharmacies.

They’re often times much more cheaper than local shops, and they will always have it in stock...

If you call his doctors office, sometimes they can give you free samples that were dropped off by pharmaceutical reps.

There is also a website where you can shop for the lowest price on the RX in your area if you are in the United States:https://www.goodrx.com/

If you are in the United States state by state pharmaceutical assistance: https://www.medicareinteractive.org/get-answers/cost-saving-programs-for-people-with-medicare/state-pharmaceutical-assistance-programs-spaps/spap-basics

Try another pharmacy

Can you buy half prescriptions? Some places let you do that.

Why are you paying for it?

{{hugs}}

Have you tried searching online pharmacies?