You can create multiple VA Custom Drug-Drug Interactions (DDIs) from one corresponding FDB Record. If you open an FDB DDI record on the Advanced Query/Customization page, the DDI Detail page will open. If there are any VA custom records for this FDB DDI, you’ll see a message stating that “The following VA custom record(s) already exist for this FDB Drug-Drug Interaction,” and a table and a link to any interaction(s) display.
From here, you can create another custom record if you wish. Checks exist in the system so that the same user cannot make duplicate DDIs or another user cannot come in and make the same DDI that another user just made.
You cannot add a drug pair that currently exists for the selected DDI.
You will also receive an error if you attempt to customize a drug pair for a DDI in Reverse Order.
See also:
Concept: Drug-Drug Interaction