they don't think about it because they have not been educated to do so
they think the features of ADRs are already well known, especially when the suspected drug is
old
they interpret ADRs as minor or irrelevant
they lack the interest to listen to the patient
they have doubts about the causal role of the drug(s) involved and wrongly assume that causality
has to be established
they suspect that the ADR has never been previously discussed and fear that their suspicion
might therefore be wrong
they suspect that the ADR has already been reported by a colleague
they lack the time
they fear a lot of extra work, because of time-consuming requests for additional information
they are concerned that the ADR might subject the reporter or others to disciplinary action or a
lawsuit
they fear they could be sued by the company for 'false' statement and compensation
reporting is thought to be ineffective
they are ignorant of the requirements for reporting
they plan to collect and publish a personal series of cases
they lack understanding of what types of ADR should be reported
the ADRs simulate a common spontaneously occurring disease or simulate the symptoms of the
treated disease
relevant information is missing such as drugs prescribed by other physicians or medicines taken
without prescription (patients rarely tell physicians about their use of alternative medicines)
they lack financial compensation for the time and effort of reporting
they lack feedback from authorities or medical professionals in the system
reporting forms are not to hand