Note: This document contains side effect information about phendimetrazine. Some dosage forms listed on this page may not apply to the brand name Bontril Slow Release.

Applies to phendimetrazine: oral conventional tablets and extended-release capsules.

Side effects include:

Palpitation, tachycardia, increased BP, overstimulation, restlessness, dizziness, insomnia, agitation, flushing, tremor, sweating, headache, psychosis, blurred vision, dry mouth, diarrhea, constipation, nausea, stomach pain, changes in libido, urinary frequency, dysuria.

For Healthcare Professionals

Applies to phendimetrazine: oral capsule extended release, oral tablet.

Cardiovascular

Frequency not reported: Valvular heart disease, palpitation, tachycardia, elevated blood pressure, ischemic events, flushing^[Ref]

Respiratory

Frequency not reported: Pulmonary hypertension^[Ref]

Psychiatric

Frequency not reported: Psychotic state, insomnia, agitation, libido changes^[Ref]

Nervous system

Frequency not reported: Overstimulation, restlessness, tremor, dizziness, headache^[Ref]

Gastrointestinal

Frequency not reported: Dry mouth, nausea, stomach pain, diarrhea, constipation^[Ref]

Genitourinary

Frequency not reported: Urinary frequency, dysuria^[Ref]

Ocular

Frequency not reported: Blurred vision^[Ref]

Dermatologic

Frequency not reported: Sweating^[Ref]