https://www.fda.gov/drugs/drug-approvals-and-databases/fda-adverse-event-reporting-system-faers-database
and
https://www.fda.gov/safety/medwatch-fda-safety-information-and-adverse-event-reporting-program
By now, most everyone has heard of VAERS, the vaccine injury reporting system, because of COVID.
The two links that I supplied above are the counterparts for reporting suspected adverse effects and injuries from the use of prescription medications. Telling your Doc about having trouble with a medication is not enough. Docs are too busy to follow through with reporting, and it is not on their priority list. It is entirely up to the patient to report any suspected problems. This is the only way that the FDA has to capture complaints about medications that have been approved for use, and it has been estimated that these databases capture only about 1% of patient complaints.
If you think you are having a problem with a medication, don't let yourself be gaslighted; *Report it* even if your Doc dismisses your complaint, especially if you are hearing "...There is no documented evidence for... (condition)...". By doing this, you can help others. Medical gaslighting seems to be a rampant problem, as is denial of complaints by the pharmaceutical industry, and this reporting mechanism is one possible way around it.
Enough reports in these systems can raise safety signals, which can eventually trigger an investigation. This is, for example, how the problem with Vioxx was detected, and eventually resulted in the removal of the approval for this drug, along with producing a better understanding of the underlying mechanism. This overall process is necessary to develop better and safer pharmaceuticals.