Adverse reactions were recorded by clinical investigators using descriptive terminology of their own choosing. Consequently, it is not possible to provide a meaningful estimate of the proportion of individuals experiencing adverse reactions without first grouping similar types of reactions into a limited (i.e., reduced) number of standardized reaction categories.
In the tables and tabulations that follow, MedDRA or COSTART Dictionary terminology has been used to classify reported adverse reactions. The data in the tables represent the proportion of individuals who experienced, at least once, a treatment-emergent adverse reaction of the type listed. A reaction was considered treatment-emergent if it occurred for the first time or worsened while receiving therapy following baseline evaluation. It is possible that reactions reported during therapy were not necessarily related to drug exposure.
The prescriber should be aware that the figures in the tables and tabulations cannot be used to predict the incidence of side effects in the course of usual medical practice where patient characteristics and other factors differ from those that prevailed in the clinical studies. Similarly, the cited frequencies cannot be compared with figures obtained from other clinical investigations involving different treatments, uses, and investigators. The cited figures, however, do provide the prescribing clinician with some basis for estimating the relative contribution of drug and nondrug factors to the side effect incidence rate in the population studied.
Adults - The information below is derived from a clinical study database for olanzapine and fluoxetine capsules consisting of 2547 patients. The conditions and duration of treatment with olanzapine and fluoxetine capsules varied greatly and included (in overlapping categories) open-label and double-blind phases of studies, inpatients and outpatients, fixed-dose and dose-titration studies, and short-term or long-term exposure.
Adverse Reactions Associated With Discontinuation of Treatment in Short-Term, Controlled Studies — Overall, 11.3% of the 771 patients in the olanzapine and fluoxetine capsule group discontinued due to adverse reactions compared with 4.4% of the 477 patients for placebo. Adverse reactions leading to discontinuation associated with the use of olanzapine and fluoxetine capsules (incidence of at least 1% for olanzapine and fluoxetine capsules and greater than that for placebo) using MedDRA Dictionary coding were weight increased (2%) and sedation (1%) versus placebo patients which had 0% incidence of weight increased and sedation.
Commonly Observed Adverse Reactions in Short-Term, Controlled Studies — The most commonly observed adverse reactions associated with the use of olanzapine and fluoxetine capsules (incidence ≥ 5% and at least twice that for placebo in the olanzapine and fluoxetine capsule-controlled database) using MedDRA Dictionary coding were: disturbance in attention, dry mouth, fatigue, hypersomnia, increased appetite, peripheral edema, sedation, somnolence, tremor, vision blurred, and weight increased. Adverse reactions reported in clinical trials of olanzapine and fluoxetine in combination are generally consistent with treatment-emergent adverse reactions during olanzapine or fluoxetine monotherapy.
Adverse Reactions Occurring at an Incidence of 2% or More in Short-Term Controlled Studies —
Table 10 enumerates the treatment-emergent adverse reactions associated with the use of olanzapine and fluoxetine capsules (incidence of at least 2% for olanzapine and fluoxetine capsules and twice or more than for placebo). The olanzapine and fluoxetine capsule-controlled column includes patients with various diagnoses while the placebo column includes only patients with bipolar depression and major depression with psychotic features.
Table 10: Treatment-Emergent Adverse Reactions: Incidence in the Adult Controlled Clinical Studies| System Organ Class | Adverse Reaction | Percentage of Patients Reporting Event |
Olanzapine and Fluoxetine
Capsule-Controlled
(N = 771) | Placebo (N = 477) |
| Eye disorders | Vision blurred | 5 | 2 |
| Gastrointestinal disorders | Dry mouth | 15 | 6 |
| Flatulence | 3 | 1 |
| Abdominal distension | 2 | 0 |
| General disorders and administration site conditions | Fatigue | 12 | 2 |
| Edema
Includes edema, edema peripheral, pitting edema, generalized edema, eyelid edema, face edema, gravitational edema, localized edema, periorbital edema, swelling, joint swelling, swelling face, and eye swelling. | 15 | 2 |
| Asthenia | 3 | 1 |
| Pain | 2 | 1 |
| Pyrexia | 2 | 1 |
| Infections and infestations | Sinusitis | 2 | 1 |
| Investigations | Weight increased | 25 | 3 |
| Metabolism and nutrition disorders | Increased appetite | 20 | 4 |
| Musculoskeletal and connective tissue disorders | Arthralgia | 4 | 1 |
| Pain in extremity | 3 | 1 |
| Musculoskeletal stiffness | 2 | 1 |
| Nervous system disorders | Somnolence
Includes somnolence, sedation, hypersomnia, and lethargy. | 27 | 11 |
| Tremor | 9 | 3 |
| Disturbance in attention | 5 | 1 |
| Psychiatric disorders | Restlessness | 4 | 1 |
| Thinking abnormal | 2 | 1 |
| Nervousness | 2 | 1 |
| Reproductive system and breast disorders | Erectile dysfunction | 2 | 1 |
Extrapyramidal Symptoms
Dystonia, Class Effect for Antipsychotics — Symptoms of dystonia, prolonged abnormal contractions of muscle groups, may occur in susceptible individuals during the first few days of treatment. Dystonic symptoms include: spasm of the neck muscles, sometimes progressing to tightness of the throat, swallowing difficulty, difficulty breathing, and/or protrusion of the tongue. While these symptoms can occur at low doses, the frequency and severity are greater with high potency and at higher doses of first generation antipsychotic drugs. In general, an elevated risk of acute dystonia may be observed in males and younger age groups receiving antipsychotics; however, events of dystonia have been reported infrequently (< 1%) with the olanzapine and fluoxetine combination.
Additional Findings Observed in Clinical Studies
Sexual Dysfunction — In the pool of controlled olanzapine and fluoxetine capsule studies in patients with bipolar depression, there were higher rates of the treatment-emergent adverse reactions decreased libido, anorgasmia, erectile dysfunction and abnormal ejaculation in the olanzapine and fluoxetine capsule group than in the placebo group. One case of decreased libido led to discontinuation in the olanzapine and fluoxetine capsule group. In the controlled studies that contained a fluoxetine arm, the rates of decreased libido and abnormal ejaculation in the olanzapine and fluoxetine capsule group were less than the rates in the fluoxetine group. None of the differences were statistically significant.
Sexual dysfunction, including priapism, has been reported with all SSRIs. While it is difficult to know the precise risk of sexual dysfunction associated with the use of SSRIs, physicians should routinely inquire about such possible side effects.
There are no adequate and well-controlled studies examining sexual dysfunction with olanzapine and fluoxetine capsule or fluoxetine treatment. Symptoms of sexual dysfunction occasionally persist after discontinuation of fluoxetine treatment.
Difference Among Dose Levels Observed in Other Olanzapine Clinical Trials
In a single 8 week randomized, double-blind, fixed-dose study comparing 10 (N = 199), 20 (N = 200), and 40 (N = 200) mg/day of olanzapine in patients with Schizophrenia or Schizoaffective Disorder, statistically significant differences among 3 dose groups were observed for the following safety outcomes: weight gain, prolactin elevation, fatigue, and dizziness. Mean baseline to endpoint increase in weight (10 mg/day: 1.9 kg; 20 mg/day: 2.3 kg; 40 mg/day: 3 kg) was observed with significant differences between 10 vs 40 mg/day. Incidence of treatment-emergent prolactin elevation > 24.2 ng/mL (female) or > 18.77 ng/mL (male) at any time during the trial (10 mg/day: 31.2%; 20 mg/day: 42.7%; 40 mg/day: 61.1%) with significant differences between 10 vs 40 mg/day and 20 vs 40 mg/day; fatigue (10 mg/day: 1.5%; 20 mg/day: 2.1%; 40 mg/day: 6.6%) with significant differences between 10 vs 40 and 20 vs 40 mg/day; and dizziness (10 mg/day: 2.6%; 20 mg/day: 1.6%; 40 mg/day: 6.6%) with significant differences between 20 vs 40 mg, was observed.
Other Adverse Reactions Observed in Clinical Studies
Following is a list of treatment-emergent adverse reactions reported by patients treated with olanzapine and fluoxetine capsules in clinical trials. This listing is not intended to include reactions (1) already listed in previous tables or elsewhere in labeling, (2) for which a drug cause was remote, (3) which were so general as to be uninformative, (4) which were not considered to have significant clinical implications, or (5) which occurred at a rate equal to or less than placebo.
Reactions are classified by body system using the following definitions: frequent adverse reactions are those occurring in at least 1/100 patients; infrequent adverse reactions are those occurring in 1/100 to 1/1000 patients; and rare reactions are those occurring in fewer than 1/1000 patients.
Body as a Whole —
Frequent: chills, neck rigidity, photosensitivity reaction;
Rare: death
1.
Cardiovascular System —
Frequent: vasodilatation;
Infrequent: QT-interval prolonged.
Digestive System —
Frequent: diarrhea;
Infrequent: gastritis, gastroenteritis, nausea and vomiting, peptic ulcer;
Rare: gastrointestinal hemorrhage, intestinal obstruction, liver fatty deposit, pancreatitis.
Hemic and Lymphatic System —
Frequent: ecchymosis;
Infrequent: anemia, thrombocytopenia;
Rare: leukopenia, purpura.
Metabolic and Nutritional —
Frequent: generalized edema, weight loss;
Rare: bilirubinemia, creatinine increased, gout.
Musculoskeletal System —
Rare: osteoporosis.
Nervous System —
Frequent: amnesia;
Infrequent: ataxia, buccoglossal syndrome, coma, depersonalization, dysarthria, emotional lability, euphoria, hypokinesia, movement disorder, myoclonus;
Rare: hyperkinesia, libido increased, withdrawal syndrome.
Respiratory System —
Infrequent: epistaxis, yawn;
Rare: laryngismus.
Skin and Appendages —
Infrequent: alopecia, dry skin, pruritis;
Rare: exfoliative dermatitis.
Special Senses —
Frequent: taste perversion;
Infrequent: abnormality of accommodation, dry eyes.
Urogenital System —
Frequent: breast pain, menorrhagia
2, urinary frequency, urinary incontinence;
Infrequent: amenorrhea
2, female lactation
2, hypomenorrhea
2, metrorrhagia
2, urinary retention, urinary urgency, urination impaired;
Rare: breast engorgement
2.
1 This term represents a serious adverse event but does not meet the definition for adverse drug reactions. It is included here because of its seriousness.
2 Adjusted for gender.
Other Adverse Reactions Observed With Olanzapine or Fluoxetine Monotherapy
The following adverse reactions were not observed in olanzapine and fluoxetine capsule-treated patients during premarketing clinical studies but have been reported with olanzapine or fluoxetine monotherapy: aplastic anemia, bruxism, cholestatic jaundice, diabetic coma, dysuria, eosinophilic pneumonia
3, erythema multiforme, esophageal ulcer, gynecological bleeding, headache, hypotension, jaundice, neutropenia, sudden unexpected death
3, sweating, and violent behaviors
3. Random triglyceride levels of ≥ 1000 mg/dL have been reported.
3 These terms represent serious adverse events but do not meet the definition for adverse drug reactions. They are included here because of their seriousness.