All Companies Stopping Isoxsuprine Distribution
FDA says that as of 10/13, all manufacturers and labelers of isoxsuprine hydrochloride drug products agreed to cease distribution of the unapproved drugs. An agency online statement says that FDA announced on 7/15/20 a final decision of the commissioner that Vasodilan containing isoxsuprine HCl lacked substantial evidence, consisting of adequate and well-controlled studies, to be effective for specific indications.
According to WebMD, isoxsuprine HCl drugs were used along with other treatment for certain blood vessel diseases. They worked by widening blood vessels to help increase blood flow to certain parts of the body. The effect may help to decrease symptoms such as cold hands and feet, numbness, tingling, and decreased memory or judgment, it says.
FDA says it notified manufacturers and labelers of the products 8/9 to stop distributing their products.
The notice says the agency considers isoxsuprine HCl products to be unapproved new drugs that cannot be distributed in interstate commerce without an NDA approved by FDA.