FORFIVO XL SIDE EFFECTS
- Generic Name: bupropion hydrochloride
- Brand Name: Forfivo XL
SIDE EFFECTS
The following adverse reactions are discussed in greater detail in other sections of the labeling:
- Suicidal thoughts and behaviors in children, adolescents, and young adults
- Neuropsychiatric symptoms and suicide risk in smoking cessation treatment
- Seizure
- Hypertension
- Activation of mania or hypomania
- Psychosis and other neuropsychiatric events
- Angle-closure Glaucoma
- Hypersensitivity reactions
Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.
Commonly Observed Adverse Reactions In Controlled Clinical Trials Of Sustained-release Bupropion Hydrochloride
Adverse reactions that occurred in at least 5% of patients treated with bupropion hydrochloride sustained-release (300 and 400 mg/day) and at a rate at least twice the placebo rate are listed below.
300 mg/day of bupropion hydrochloride sustained-release: anorexia, dry mouth, rash, sweating, tinnitus, and tremor.
400 mg/day of bupropion hydrochloride sustained-release: abdominal pain, agitation, anxiety, dizziness, dry mouth, insomnia, myalgia, nausea, palpitation, pharyngitis, sweating, tinnitus, and urinary frequency.
FORFIVO XL is bioequivalent to three 150-mg tablets of WELLBUTRIN XL®, which has been demonstrated to have similar bioavailability both to the immediate-release and the sustainedrelease formulations of bupropion. The information included under this subsection and under subsection 6.2 is based primarily on data from controlled clinical trials with the sustained-release and extended-release formulations of bupropion hydrochloride.
Major Depressive Disorder
Adverse Reactions Leading to Discontinuation of Treatment with Bupropion Hydrochloride Immediate-release, Bupropion Hydrochloride Sustained-release, and Bupropion Hydrochloride Extended-release Formulations in Major Depressive Disorder Trials
In placebo-controlled clinical trials with bupropion hydrochloride sustained-release, 4%, 9%, and 11% of the placebo, 300 mg/day, and 400 mg/day groups, respectively, discontinued treatment because of adverse reactions. The specific adverse reactions leading to discontinuation in at least 1% of the 300-mg/day or 400-mg/day groups and at a rate at least twice the placebo rate are listed in Table 1.
Table 1: Treatment Discontinuation Due to Adverse Reactions in Placebo-controlled Trials in Major Depressive Disorder
| Adverse Reaction Term | Placebo (N = 385) |
Bupropion Hydrochloride Sustained-release 300 mg/day (N = 376) |
Bupropion Hydrochloride Sustained-release 400 mg/day (N = 114) |
| Rash | 0.0% | 2.4% | 0.9% |
| Nausea | 0.3% | 0.8% | 1.8% |
| Agitation | 0.3% | 0.3% | 1.8% |
| Migraine | 0.3% | 0.0% | 1.8% |
In clinical trials with bupropion hydrochloride immediate-release, 10% of patients and volunteers discontinued due to an adverse reaction. Reactions resulting in discontinuation (in addition to those listed above for the sustained-release formulation) included vomiting, seizures, and sleep disturbances.
Adverse Reactions Occurring at an Incidence of > 1% in Patients Treated With Bupropion Hydrochloride Immediate-release or Bupropion Hydrochloride Sustained-release Formulations in Major Depressive Disorder Trials
Table 2 summarizes the adverse reactions that occurred in placebo-controlled trials in patients treated with bupropion hydrochloride sustained-release at 300 mg/day and 400 mg/day. These include reactions that occurred in either the 300-mg/day or 400-mg/day group at an incidence of 1% or more and were more frequent than in the placebo group.
Table 2: Adverse Reactions in Placebo-controlled Trials for Major Depressive Disorder
| Body System/Adverse Reaction | Placebo (N = 385) |
Bupropion Hydrochloride Sustained-release 300 mg/day (N = 376) |
Bupropion Hydrochloride Sustained-release 400 mg/day (N = 114) |
| Body (General) | |||
| Headache | 23% | 26% | 25% |
| Infection | 6% | 8% | 9% |
| Abdominal pain | 2% | 3% | 9% |
| Asthenia | 2% | 2% | 4% |
| Chest pain | 1% | 3% | 4% |
| Pain | 2% | 2% | 3% |
| Fever | — | 1% | 2% |
| Cardiovascular | |||
| Palpitation | 2% | 2% | 6% |
| Flushing | — | 1% | 4% |
| Migraine | 1% | 1% | 4% |
| Hot flashes | 1% | 1% | 3% |
| Digestive | |||
| Dry mouth | 7% | 17% | 24% |
| Nausea | 8% | 13% | 18% |
| Constipation | 7% | 10% | 5% |
| Diarrhea | 6% | 5% | 7% |
| Anorexia | 2% | 5% | 3% |
| Vomiting | 2% | 4% | 2% |
| Dysphagia | 0% | 0% | 2% |
| Musculoskeletal | |||
| Myalgia | 3% | 2% | 6% |
| Arthralgia | 1% | 1% | 4% |
| Arthritis | 0% | 0% | 2% |
| Twitch | — | 1% | 2% |
| Nervous System | |||
| Insomnia. | 6% | 11% | 16% |
| Dizziness | 5% | 7% | 11% |
| Agitation | 2% | 3% | 9% |
| Anxiety | 3% | 5% | 6% |
| Tremor | 1% | 6% | 3% |
| Nervousness | 3% | 5% | 3% |
| Somnolence | 2% | 2% | 3% |
| Irritability | 2% | 3% | 2% |
| Memory decreased | 1% | — | 3% |
| Paresthesia | 1% | 1% | 2% |
| Central nervous system stimulation | 1% | 2% | 1% |
| Respiratory | |||
| Pharyngitis | 2% | 3% | 11% |
| Sinusitis | 2% | 3% | 1% |
| Increased cough | 1% | 1% | 2% |
| Skin | |||
| Sweating | 2% | 6% | 5% |
| Rash | 1% | 5% | 4% |
| Pruritus | 2% | 2% | 4% |
| Urticaria | 0% | 2% | 1% |
| Special Senses | |||
| Tinnitus | 2% | 6% | 6% |
| Taste perversion | — | 2% | 4% |
| Blurred vision or diplopia | 2% | 3% | 2% |
| Urogenital | |||
| Urinary frequency | 2% | 2% | 5% |
| Urinary urgency | 0% | — | 2% |
| Vaginal hemorrhagea | — | 0% | 2% |
| Urinary tract infection | — | 1% | 0% |
| a = Incidence based on the number of female patients. – = Denotes adverse reactions occurring in greater than 0 but less than 0.5% of patients. |
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The following additional adverse reactions occurred in controlled trials of bupropion hydrochloride immediate-release (300 to 600 mg/day) at an incidence of at least 1% more frequently than in the placebo group: cardiac arrhythmia (5% vs 4%), hypertension (4% vs 2%), hypotension (3% vs 2%), menstrual complaints (5% vs 1%), akathisia (2% vs 1%), impaired sleep quality (4% vs 2%), sensory disturbance (4% vs 3%), confusion (8% vs 5%), decreased libido (3% vs 2%), hostility (6% vs 4%), auditory disturbance (5% vs 3%), and gustatory disturbance (3% vs 1%).
Changes In Body Weight
Table 3 presents the incidence of body weight changes ( ≥ 5 lbs) in the short-term MDD trials using bupropion hydrochloride sustained-release. There was a dose-related decrease in body weight.
Table 3: Incidence of Weight Gain or Weight Loss ( ≥ 5 lbs) in Placebo-controlled Trials of Bupropion Hydrochloride Sustained-release Tablets for Major Depressive Disorder
| Weight Change | Placebo (N = 347) |
Bupropion Hydrochloride Sustained-release 300 mg/day (N = 339) |
Bupropion Hydrochloride Sustained-release 400 mg/day (N = 112) |
| Gained > 5 lbs | 4% | 3% | 2% |
| Lost > 5 lbs | 6% | 14% | 19% |
Postmarketing Experience
The following adverse reactions have been identified during postapproval use of bupropion hydrochloride. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Body (General)-chills, facial edema, edema, peripheral edema, musculoskeletal chest pain, photosensitivity, and malaise.
Cardiovascular-postural hypotension, hypertension, stroke, vasodilation, syncope, complete atrioventricular block, extrasystoles, myocardial infarction, phlebitis, and pulmonary embolism.
Digestive-abnormal liver function, bruxism, gastric reflux, gingivitis, glossitis, increased salivation, jaundice, mouth ulcers, stomatitis, thirst, edema of tongue, colitis, esophagitis, gastrointestinal hemorrhage, gum hemorrhage, hepatitis, intestinal perforation, liver damage, pancreatitis, and stomach ulcer.
Endocrine-hyperglycemia, hypoglycemia, and syndrome of inappropriate antidiuretic hormone secretion.
Hemic and Lymphatic-ecchymosis, anemia, leukocytosis, leukopenia, lymphadenopathy, pancytopenia, and thrombocytopenia. Altered PT and/or INR, associated with hemorrhagic or thrombotic complications, were observed when bupropion was coadministered with warfarin.
Metabolic and Nutritional-glycosuria.
Musculoskeletal-leg cramps, fever/rhabdomyolysis, and muscle weakness.
Nervous System-abnormal coordination, depersonalization, emotional lability, hyperkinesia, hypertonia, hypesthesia, vertigo, amnesia, ataxia, derealization, abnormal electroencephalogram (EEG), aggression, akinesia, aphasia, coma, dysarthria, dyskinesia, dystonia, euphoria, extrapyramidal syndrome, hypokinesia, increased libido, neuralgia, neuropathy, paranoid ideation, restlessness, suicide attempt, and unmasking tardive dyskinesia.
Respiratory-bronchospasm and pneumonia.
Skin-maculopapular rash, alopecia, angioedema, exfoliative dermatitis, and hirsutism.
Special Senses-accommodation abnormality, dry eye, deafness, increased intraocular pressure, angle-closure glaucoma, and mydriasis.
Urogenital-impotence, polyuria, prostate disorder, abnormal ejaculation, cystitis, dyspareunia, dysuria, gynecomastia, menopause, painful erection, salpingitis, urinary incontinence, urinary retention, and vaginitis.
SRC: NLM .