They should be readily available. They are a treatment though, not a prophylactic. The side effects can be icky.
They are not made in China, then? I have read that China controls most, if not all, of the chemicals required to make our meds, including our antibiotics and aspirin.
The head of India indicated that about the time of Trump’s visit. Also, Ireland is supposed to make some pharmaceuticals, and who is their source for these chemicals?
It almost makes one wonder if this is deliberate, particularly when Chine threatens to stop the shipment of medical supplies.