In anticipation of increased demand for chloroquine phosphate and hydroxychloroquine sulfate, the FDA is taking steps to ensure that adequate supply of these drug products is available by publishing product-specific guidances (PSGs) to support generic drug development for these drugs.

Additional information: https://www.fda.gov/regulatory-information/search-fda-guidance-documents/product-specific-guidances-chloroquine-phosphate-and-hydroxychloroquine-sulfate