2,390 reports of this reaction
9.3% of all PHENOBARBITAL reports
#1 most reported adverse reaction
DRUG INEFFECTIVE is the #1 most commonly reported adverse reaction for PHENOBARBITAL, manufactured by Chartwell Governmental & Specialty RX, LLC.. There are 2,390 FDA adverse event reports linking PHENOBARBITAL to DRUG INEFFECTIVE. This represents approximately 9.3% of all 25,712 adverse event reports for this drug.
Patients taking PHENOBARBITAL who experience drug ineffective should discuss this symptom with their healthcare provider to determine whether it may be related to their medication and what alternatives may be available.
DRUG INEFFECTIVE is moderately reported among PHENOBARBITAL users, representing a notable but not dominant share of adverse events.
In addition to drug ineffective, the following adverse reactions have been reported for PHENOBARBITAL:
The following drugs have also been linked to drug ineffective in FDA adverse event reports:
DRUG INEFFECTIVE has been reported as an adverse event in 2,390 FDA reports for PHENOBARBITAL. This does not prove causation, but indicates an association observed in post-market surveillance data.
DRUG INEFFECTIVE accounts for approximately 9.3% of all adverse event reports for PHENOBARBITAL, making it one of the most commonly reported side effect.
If you experience drug ineffective while taking PHENOBARBITAL, contact your healthcare provider. They can evaluate whether the symptom is related to your medication and discuss potential adjustments to your treatment plan. Do not stop taking prescribed medication without consulting your doctor.