Desvenlafaxine 50 mg Tablet, Extended Release, 90-count
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Serotonin and Norepinephrine Reuptake Inhibitor class.
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🏭 Manufacturer & labeler
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🩺 Clinical
Desvenlafaxine is used to treat depression. Desvenlafaxine is in a class of medications called selective serotonin and norepinephrine reuptake inhibitors (SNRIs). It works by increasing the amounts of serotonin and norepinephrine, natural substances in the brain that help maintain mental balance.
Read the full MedlinePlus article ↗- Desvenlafaxine is an antidepressant approved for adults with major depressive disorder (MDD). It belongs to a class called SNRIs — drugs that help keep more of two brain chemicals,...
- What is desvenlafaxine actually used for?
- Antidepressants like desvenlafaxine typically take time to work — it's not something you feel immediately. Clinical studies that showed effectiveness ran for about 8 weeks. Your pr...
- How long will it take before I start feeling better?
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Supplement & herbal interactions
Some supplements/herbs that may interact with Desvenlafaxine — tap one for details:
Desvenlafaxine may be associated with lower levels of 1 nutrient — worth a chat with your pharmacist, not a cause for alarm.
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
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UNII 8C3Z4148WZ
Alginic acid is a natural polymer extracted from brown seaweed. In medicines, it acts as a thickener, binder, and disintegrant to help form tablets and control how quickly the medicine dissolves.
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A weak organic acid derived from citrus fruits or made through fermentation. It works as a buffer to control pH, a preservative to extend shelf life, and a flavoring agent in medications.
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UNII 1K09F3G675
Ferric oxide red is an inorganic iron compound used as a colorant in medicines. It gives tablets, capsules, or other dosage forms a red or reddish tint for identification and appearance.
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Hypromellose is a plant-based thickener made from cellulose. It's used in medicines as a binder to hold ingredients together, a coating for tablets, and a thickener for liquids.
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UNII 70097M6I30
Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
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UNII OP1R32D61U
Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
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UNII 30IQX730WE
Polyethylene glycol 6000 is a synthetic polymer made from ethylene glycol units. It acts as a binder, filler, and solubilizer in medicines to help hold ingredients together, add bulk, and improve how well active drugs dissolve and absorb.
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Povidone K30 is a synthetic polymer made from petroleum. It acts as a binder to hold tablet ingredients together and as a disintegrant to help the tablet break apart in the stomach so the medicine can be absorbed.
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A powder made from a naturally occurring mineral. In medicines, talc works as a glidant and anti-caking agent, helping tablets and capsules flow smoothly during manufacturing and preventing clumping.
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UNII 15FIX9V2JP
Titanium dioxide is a bright white mineral powder commonly used as a colorant and opacifying agent. It makes pills and tablets white or lighter in color and helps make coatings non-transparent.
10 inactive ingredients listed in the exact product block matched to this NDC.
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ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per each | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · Q2 2026 | $4.59 | $413.07 / 90 tablets |
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🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Desvenlafaxine 50 mg 63304-0191-30 | Sun | 30 tablets | $3.806 | — | Availability likely | — |
| Desvenlafaxine 50 mgthis 46708-0152-90 | Alembic | 90 tablets | — | — | FDA listed | — |
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⏳ Availability & generic status
FDA-approved generic versions are listed, and recent pricing/market data suggests they may be available — see Therapeutic equivalents.
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📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 46708-0152-30 | 30 TABLET, EXTENDED RELEASE in 1 BOTTLE (46708-152-30) | 2013-03-05 | Active |
| 46708-0152-90 You're viewing this | 90 TABLET, EXTENDED RELEASE in 1 BOTTLE (46708-152-90) | 2013-03-05 | Active |
You're viewing the largest of 2 pack sizes for this product.
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🧭 About this NDC listing & data coverage
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| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | ✓ Available |
| Inactive ingredients (structured) | ✓ Available |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope. |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |
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📄 Full prescribing information FDA SPL
🚨 Boxed Warning ▾
WARNING: SUICIDAL THOUGHTS AND BEHAVIORS Antidepressants increased the risk of suicidal thoughts and behavior in children, adolescents, and young adults in short-term studies. These studies did not show an increase in the risk of suicidal thoughts and behavior with antidepressant use in patients over age 24; there was a reduction in risk with antidepressant use in patients aged 65 and older [see Warnings and Precautions (5.1)]. In patients of all ages who are started on antidepressant therapy, monitor closely for worsening, and for emergence of suicidal thoughts and behaviors.
Advise families and caregivers of the need for close observation and communication with the prescriber [see Warnings and Precautions (5.1)] . Desvenlafaxine is not approved for use in pediatric patients [see Use in Specific Populations (8.4) ] . WARNING: SUICIDAL THOUGHTS AND BEHAVIORS See full prescribing information for complete boxed warning.
Increased risk of suicidal thinking and behavior in children, adolescents and young adults taking antidepressants (5.1). Monitor for worsening and emergence of suicidal thoughts and behaviors (5.1) Desvenlafaxine is not approved for use in pediatric patients (8.4).
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Desvenlafaxine, a serotonin and norepinephrine reuptake inhibitor (SNRI), is indicated for the treatment of major depressive disorder (MDD) [see Clinical Studies (14) and Dosage and Administration (2.1)] . The efficacy of desvenlafaxine has been established in four short-term (8-week, placebo-controlled studies) of outpatients who met DSM-IV criteria for major depressive disorder. Desvenlafaxine is a serotonin and norepinephrine reuptake inhibitor (SNRI) indicated for the treatment of major depressive disorder (MDD) (1).
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Recommended dose: 50 mg once daily with or without food (2.1). There was no evidence that doses greater than 50 mg per day confer any additional benefit (2.1). Discontinuation: Reduce dose gradually whenever possible (2.1).
Take tablets whole; do not divide, crush, chew, or dissolve (2.1). Moderate renal impairment: Maximum dose 50 mg per day (2.2). Severe renal impairment and end-stage renal disease: Maximum dose 50 mg every other day (2.2).
Moderate to severe hepatic impairment: Maximum dose 100 mg per day (2.2).
2.1General Instruction for Use The recommended dose for desvenlafaxine is 50 mg once daily, with or without food. The 50 mg dose is both a starting dose and the therapeutic dose. Desvenlafaxine should be taken at approximately the same time each day.
Tablets must be swallowed whole with fluid and not divided, crushed, chewed, or dissolved. In clinical studies, doses of 10 mg to 400 mg per day were studied. In clinical studies, doses of 50 mg to 400 mg per day were shown to be effective, although no additional benefit was demonstrated at doses greater than 50 mg per day and adverse reactions and discontinuations were more frequent at higher doses.
When discontinuing therapy, gradual dose reduction is recommended whenever possible to minimize discontinuation symptoms [see Dosage and Administration (2.4) and Warnings and Precautions (5.9)] .
2.2Special Populations Patients with renal impairment The maximum recommended dose in patients with moderate renal impairment (24-hr creatinine clearance [CrCl] = 30 to 50 mL/min, Cockcroft-Gault [C-G]) is 50 mg per day. The maximum recommended dose in patients with severe renal impairment (24-hr CrCl less than 30 mL/min, C-G) or end-stage renal disease (ESRD) is 50 mg every other day. Supplemental doses should not be given to patients after dialysis [see Use in Specific Populations (8.6) and Clinical Pharmacology (12.3)] .
Patients with hepatic impairment The recommended dose in patients with moderate to severe hepatic impairment is 50 mg per day. Dose escalation above 100 mg per day is not recommended [see Clinical Pharmacology (12.3)] .
2.3Maintenance/Continuation/Extended Treatment It is generally agreed that acute episodes of major depressive disorder require several months or longer of sustained pharmacologic therapy. Patients should be periodically reassessed to determine the need for continued treatment.
2.4Discontinuing Desvenlafaxine Symptoms associated with discontinuation of desvenlafaxine, other SNRIs and SSRIs have been reported [see Warnings and Precautions (5.9)] . Patients should be monitored for these symptoms when discontinuing treatment. A gradual reduction in the dose rather than abrupt cessation is recommended whenever possible.
If intolerable symptoms occur following a decrease in the dose or upon discontinuation of treatment, then resuming the previously prescribed dose may be considered. Subsequently, the physician may continue decreasing the dose, but at a more gradual rate.
2.5Switching Patients From Other Antidepressants to Desvenlafaxine Discontinuation symptoms have been reported when switching patients from other antidepressants, including venlafaxine, to desvenlafaxine. Tapering of the initial antidepressant may be necessary to minimize discontinuation symptoms.
2.6Switching Patients To or From a Monoamine Oxidase Inhibitor (MAOI) Intended to Treat Psychiatric Disorders At least 14 days should elapse between discontinuation of an MAOI intended to treat psychiatric disorders and initiation of therapy with desvenlafaxine. Conversely, at least 7 days should be allowed after stopping desvenlafaxine before starting an MAOI intended to treat psychiatric disorders [see Contraindications (4)] . Use of Desvenlafaxine with other MAOIs such as Linezolid or Methylene Blue Do not start desvenlafaxine in a patient who is being treated with linezolid or intravenous methylene blue because there is increased risk of serotonin syndrom…
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Desvenlafaxine extended-release tablets are available as 50 and 100 mg tablets. 50 mg, light pink colored, diamond shaped, biconvex tablets, debossed with ‘L189’ on one side and plain on other side. 100 mg, dark brown to red colored, diamond shaped, biconvex tablets, debossed with ‘L190’ on one side and plain on other side. Desvenlafaxine extended-release tablets are available as 50 and 100 mg tablets (3)
⛔ Contraindications ▾
4 CONTRAINDICATIONS Hypersensitivity to desvenlafaxine succinate, venlafaxine hydrochloride or to any excipients in the desvenlafaxine extended-release tablets formulation. Angioedema has been reported in patients treated with desvenlafaxine [see Adverse Reactions (6.1)] . The use of MAOIs intended to treat psychiatric disorders with desvenlafaxine or within 7 days of stopping treatment with desvenlafaxine is contraindicated because of an increased risk of serotonin syndrome.
The use of desvenlafaxine within 14 days of stopping an MAOI intended to treat psychiatric disorders is also contraindicated [see Dosage and Administration (2.6) and Warnings and Precautions (5.2)]. Starting desvenlafaxine in a patient who is being treated with MAOIs such as linezolid or intravenous methylene blue is also contraindicated because of an increased risk of serotonin syndrome [see Dosage and Administration (2.6) and Warnings and Precautions (5.2)]. Hypersensitivity to desvenlafaxine succinate, venlafaxine hydrochloride or any excipients in the desvenlafaxine extended-release tablets formulation (4).
Serotonin syndrome and MAOIs : Do not use MAOIs intended to treat psychiatric disorders with desvenlafaxine or within 7 days of stopping treatment with desvenlafaxine. Do not use desvenlafaxine within 14 days of stopping an MAOI intended to treat psychiatric disorders. In addition, do not start desvenlafaxine in a patient who is being treated with linezolid or intravenous methylene blue (4).
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Clinical Worsening/Suicide Risk: Monitor for clinical worsening and suicide risk (5.1). Serotonin Syndrome: Serotonin syndrome has been reported with SSRIs and SNRIs, including with desvenlafaxine extended-release tablets, both when taken alone, but especially when co-administered with other serotonergic agents (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, amphetamines, and St. John's Wort).
If such symptoms occur, discontinue desvenlafaxine and initiate supportive treatment. If concomitant use of desvenlafaxine with other serotonergic drugs is clinically warranted, patients should be made aware of a potential increased risk for serotonin syndrome, particularly during treatment initiation and dose increases (5.2). Elevated Blood Pressure: Control hypertension before initiating treatment.
Monitor blood pressure regularly during treatment (5.3). Abnormal Bleeding: Desvenlafaxine may increase risk of bleeding events. Caution patients about risk of bleeding associated with concomitant use of desvenlafaxine and NSAIDs, aspirin, or other drugs that affect coagulation (5.4).
Angle Closure Glaucoma: Angle closure glaucoma has occurred in patients with untreated anatomically narrow angles treated with antidepressants (5.5) Activation of Mania/Hypomania: Use cautiously in patients with Bipolar Disorder. Caution patients about risk of activation of mania/hypomania (5.6). Discontinuation Syndrome: Taper dose when possible and monitor for discontinuation symptoms (5.7).
Seizure: Can occur. Use cautiously in patients with seizure disorder (5.8). Hyponatremia: Can occur in association with SIADH (5.9).
Interstitial Lung Disease and Eosinophilic Pneumonia: Can occur (5.10).
5.1Suicidal Thoughts and Behaviors in Children, Adolescents and Young Adults Patients with major depressive disorder (MDD), both adult and pediatric, may experience worsening of their depression and/or the emergence of suicidal ideation and behavior (suicidality) or unusual changes in behavior, whether or not they are taking antidepressant medications, and this risk may persist until significant remission occurs. Suicide is a known risk of depression and certain other psychiatric disorders, and these disorders themselves are the strongest predictors of suicide.
There has been a long-standing concern, however, that antidepressants may have a role in inducing worsening of depression and the emergence of suicidality in certain patients during the early phases of treatment. Pooled analyses of short-term placebo-controlled studies of antidepressant drugs (SSRIs and others) showed that these drugs increase the risk of suicidal thinking and behavior (suicidality) in children, adolescents, and young adults (ages 18 to 24) with major depressive disorder (MDD) and other psychiatric disorders.
Short-term studies did not show an increase in the risk of suicidality with antidepressants compared to placebo in adults beyond age 24; there was a reduction with antidepressants compared to placebo in adults aged 65 and older. The pooled analyses of placebo-controlled studies in children and adolescents with MDD, obsessive compulsive disorder (OCD), or other psychiatric disorders included a total of 24 short-term studies of 9 antidepressant drugs in over 4,400 patients. The pooled analyses of placebo-controlled studies in adults with MDD or other psychiatric disorders included a total of 295 short-term studies (median duration of 2 months) of 11 antidepressant drugs in over 77,000 patients.
There was considerable variation in risk of suicidality among drugs, but a tendency toward an increase in the younger patients for almost all drugs studied. There were differences in absolute risk of suicidality across the different indications, with the highest incidence in MDD. The risk differences (drug vs. placebo), however, were relatively stable within age strata and across indications.
These risk differences (drug-plac…
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the label. Hypersensitivity [see Contraindications (4)] Suicidal Thoughts and Behaviors in Adolescents and Young Adults [see Warnings and Precautions (5.1)] Serotonin Syndrome [see Warnings and Precautions (5.2)] Elevated Blood Pressure [see Warnings and Precautions (5.3)] Abnormal Bleeding [see Warnings and Precautions (5.4)] Angle Closure Glaucoma [see Warnings and Precautions (5.5)] Activation of Mania/Hypomania [see Warnings and Precautions (5.6)] Discontinuation Syndrome [see Warnings and Precautions (5.7)] Seizure [see Warnings and Precautions (5.8)] Hyponatremia [see Warnings and Precautions (5.9)] Interstitial Lung Disease and Eosinophilic Pneumonia [see Warnings and Precautions 5.10)] Most common adverse reactions (incidence ≥5% and twice the rate of placebo in the 50 or 100 mg dose groups) were: nausea, dizziness, insomnia, hyperhidrosis, constipation, somnolence, decreased appetite, anxiety, and specific male sexual function disorders (6.1).
To report SUSPECTED ADVERSE REACTIONS, contact FDA at 1-800-FDA-1088 or www.fda.gov/medwatch
6.1Clinical Studies 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 studies of another drug and may not reflect the rates observed in clinical practice. Patient exposure Desvenlafaxine was evaluated for safety in 8,394 patients diagnosed with major depressive disorder who participated in multiple-dose pre-marketing studies, representing 2,784 patient-years of exposure.
Of the total 8,394 patients exposed to at least one dose of desvenlafaxine; 2,116 were exposed to desvenlafaxine for 6 months, representing 1,658 patient-years of exposure, and 421 were exposed for one year, representing 416 patient-years of exposure. Adverse reactions reported as reasons for discontinuation of treatment In the pre-marketing pooled 8-week placebo-controlled studies in patients with MDD, 1,834 patients were exposed to desvenlafaxine (50 to 400 mg).Of the 1,834 patients, 12% discontinued treatment due to an adverse reaction, compared with 3% of the 1,116 placebo-treated patients.
At the recommended dose of 50 mg, the discontinuation rate due to an adverse reaction for desvenlafaxine (4.1%) was similar to the rate for placebo (3.8%). For the 100 mg dose of desvenlafaxine the discontinuation rate due to an adverse reaction was 8.7%. The most common adverse reactions leading to discontinuation in at least 2% and at a rate greater than placebo of the desvenlafaxine treated patients in the short-term studies, up to 8 weeks, were: nausea (4%); dizziness, headache and vomiting (2% each).
In a longer-term study, up to 9 months, the most common was vomiting (2%). Common adverse reactions in placebo-controlled MDD studies The most commonly observed adverse reactions in desvenlafaxine treated MDD patients in pre-marketing pooled 8-week, placebo-controlled, fixed-dose studies (incidence ≥ 5% and at least twice the rate of placebo in the 50 or 100 mg dose groups) were: nausea, dizziness, insomnia, hyperhidrosis, constipation, somnolence, decreased appetite, anxiety, and specific male sexual function disorders.
Table 2 shows the incidence of common adverse reactions that occurred in ≥ 2% of desvenlafaxine treated MDD patients and twice the rate of placebo at any dose in the pooled 8-week, placebo-controlled, fixed dose clinical studies Table 2: Common Adverse Reactions (≥ 2% in any Fixed-Dose Group and Twice the Rate of Placebo) in Pre-marketing Pooled MDD 8-Week Placebo-Controlled Studies Percentage of Patients Reporting Reaction Desvenlafaxine System Organ Class Preferred Term Placebo (n=636) 50 mg (n=317) 100 mg (n=424) 200 mg (n=307) 400 mg (n=317) Cardiac disorders Blood pressure increased 1 1 1 2 2 Gastrointestinal disorders Nausea 10 22 26 36 41 Dry mouth 9 11 1…
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS
7.1Monoamine Oxidase Inhibitors (MAOI) Do not use MAOIs intended to treat psychiatric disorders with desvenlafaxine or within 7 days of stopping treatment with desvenlafaxine. Do not use desvenlafaxine within 14 days of stopping an MAOI intended to treat psychiatric disorders. In addition, do not start desvenlafaxine in a patient who is being treated with linezolid or intravenous methylene blue [see Dosage and Administration (2.6 ), Contraindications (4) and Warnings and Precautions (5.2)].
7.2Serotonergic Drugs Based on the mechanism of action of desvenlafaxine and the potential for serotonin syndrome, caution is advised when desvenlafaxine is co-administered with other drugs that may affect the serotonergic neurotransmitter systems [see Dosage and Administration (2.6), Contraindications (4) and Warnings and Precautions (5.2)].
7.3Drugs that Interfere with Hemostasis (e.g., NSAIDs, Aspirin, and Warfarin) Serotonin release by platelets plays an important role in hemostasis. Epidemiological studies of case-control and cohort design that have demonstrated an association between use of psychotropic drugs that interfere with serotonin reuptake and the occurrence of upper gastrointestinal bleeding. These studies have also shown that concurrent use of an NSAID or aspirin may potentiate this risk of bleeding.
Altered anticoagulant effects, including increased bleeding, have been reported when SSRIs and SNRIs are co-administered with warfarin. Patients receiving warfarin therapy should be carefully monitored when desvenlafaxine is initiated or discontinued [see Warnings and Precautions (5.4)].
7.4Potential for Desvenlafaxine to Affect Other Drugs Based on in vitro data, no dose adjustment is required for desvenlafaxine when used concomitantly with inhibitors of CYP3A4 and CYP1A1, 1A2, 2A6, 2D6, 2C8, 2C9, 2C19, 2E1, and the P-glycoprotein transporter. Clinical studies have demonstrated no clinically significant pharmacokinetic interaction between desvenlafaxine and strong CYP 3A4 inhibitors (Figure 1). Figure 1
7.5Potential for Desvenlafaxine to Affect Other Drugs Clinical studies have shown that desvenlafaxine does not have a clinically relevant effect on CYP2D6 metabolism at the dose of 100 mg daily (Figure 2). Substrates primarily metabolized by CYP2D6 (e.g., desipramine , atomoxetine, dextromethorphan, metoprolol, nebivolol, perphenazine, tolterodine) should be dosed at the original level when co-administered with desvenlafaxine 100 mg or lower or when desvenlafaxine is discontinued. Reduce the dose of these substrates by up to one-half if co-administered with 400 mg of desvenlafaxine.
No additional dose adjustment is required for concomitant use of substrates of CYP3A4, 1A2, 2A6, 2C8, 2C9, and 2C19 isozymes, and P-glycoprotein transporter. Clinical studies have demonstrated no clinically significant pharmacokinetic interaction between desvenlafaxine and CYP3A4 substrates (Figure 2). Clinical studies have shown that desvenlafaxine (100 mg daily) does not have a clinically relevant effect on tamoxifen and aripiprazole, compounds that are metabolized by a combination of both CYP2D6 and CYP3A4 enzymes (Figure 2).
In vitro studies showed minimal inhibitory effect of desvenlafaxine on the CYP2D6 isoenzyme. In vitro , desvenlafaxine does not inhibit or induce the CYP3A4 isozyme. In vitro , desvenlafaxine does not inhibit CYP1A2, 2A6, 2C8, 2C9, and 2C19, isozymes, and P-glycoprotein transporter and would not be expected to affect the pharmacokinetics of drugs that are substrates of these CYP isozymes and transporter.
Figure 2
7.6Other Drugs Containing Desvenlafaxine or Venlafaxine Avoid use of desvenlafaxine with other desvenlafaxine-containing products or venlafaxine products. The concomitant use of desvenlafaxine with other desvenlafaxine-containing products or venlafaxine will increase desvenlafaxine blood levels and increase dose-related adverse reactions [see Adverse Reactions (6)].
7.7 Ethanol A clinical st…
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS Pregnancy: Based on animal data, may cause fetal harm (8.1). Nursing Mothers: Discontinue drug or nursing taking into consideration importance of drug to mother (8.3). Geriatric Use: There is an increased incidence of orthostatic hypotension in desvenlafaxine treated patients ≥ 65 years (6.1 and 8.5).
8.1Pregnancy Pregnancy Category C Risk summary There are no adequate and well-controlled studies of desvenlafaxine in pregnant women. In reproductive developmental studies in rats and rabbits with desvenlafaxine succinate, evidence of teratogenicity was not observed at doses up to 30 times a human dose of 100 mg per day (on a mg/m 2 basis) in rats, and up to 15 times a human dose of 100 mg per day (on a mg/m 2 basis) in rabbits. An increase in rat pup deaths was seen during the first 4 days of lactation when dosing occurred during gestation and lactation, at doses greater than 10 times a human dose of 100 mg per day (on a mg/m 2 basis).
Desvenlafaxine should be used during pregnancy only if the potential benefits justify the potential risks to the fetus. Clinical considerations A prospective longitudinal study of 201 women with history of major depression who were euthymic at the beginning of pregnancy, showed women who discontinued antidepressant medication during pregnancy were more likely to experience a relapse of major depression than women who continued antidepressant medication. Human data Neonates exposed to SNRIs (Serotonin and Norepinephrine Reuptake Inhibitors), or SSRIs (Selective Serotonin Reuptake Inhibitors), late in the third trimester have developed complications requiring prolonged hospitalization, respiratory support, and tube feeding.
Such complications can arise immediately upon delivery. Reported clinical findings have included respiratory distress, cyanosis, apnea, seizures, temperature instability, feeding difficulty, vomiting, hypoglycemia, hypotonia, hypertonia, hyperreflexia, tremor, jitteriness, irritability, and constant crying. These features are consistent with either a direct toxic effect of SSRIs and SNRIs or, possibly, a drug discontinuation syndrome.
It should be noted that, in some cases, the clinical picture is consistent with serotonin syndrome [see Warnings and Precautions (5.2)] . Animal data When desvenlafaxine succinate was administered orally to pregnant rats and rabbits during the period of organogenesis at doses up to 300 mg/kg/day and 75 mg/kg/day, respectively, no teratogenic effects were observed. These doses are 30 times a human dose of 100 mg per day (on a mg/m 2 basis) in rats and 15 times a human dose of 100 mg per day (on a mg/m 2 basis) in rabbits.
However, fetal weights were decreased and skeletal ossification was delayed in rats in association with maternal toxicity at the highest dose, with a no-effect dose 10 times a human dose of 100 mg per day (on a mg/m 2 basis). When desvenlafaxine succinate was administered orally to pregnant rats throughout gestation and lactation, there was a decrease in pup weights and an increase in pup deaths during the first four days of lactation at the highest dose of 300 mg/kg/day. The cause of these deaths is not known.
The no-effect dose for rat pup mortality was 10 times a human dose of 100 mg per day (on a mg/m 2 basis). Post-weaning growth and reproductive performance of the progeny were not affected by maternal treatment with desvenlafaxine succinate at a dose 30 times a human dose of 100 mg per day (on a mg/m 2 basis).
8.3Nursing Mothers Desvenlafaxine (O-desmethylvenlafaxine) is excreted in human milk. Because of the potential for serious adverse reactions in nursing infants from desvenlafaxine, a decision should be made whether or not to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
8.4Pediatric Use Safety and effectiveness in pediatric patients have not been established [see Boxed Warning and Warnings and Precautions (5.1)] . Anyone cons…
🤰 Pregnancy ▾
8.1Pregnancy Pregnancy Category C Risk summary There are no adequate and well-controlled studies of desvenlafaxine in pregnant women. In reproductive developmental studies in rats and rabbits with desvenlafaxine succinate, evidence of teratogenicity was not observed at doses up to 30 times a human dose of 100 mg per day (on a mg/m 2 basis) in rats, and up to 15 times a human dose of 100 mg per day (on a mg/m 2 basis) in rabbits. An increase in rat pup deaths was seen during the first 4 days of lactation when dosing occurred during gestation and lactation, at doses greater than 10 times a human dose of 100 mg per day (on a mg/m 2 basis).
Desvenlafaxine should be used during pregnancy only if the potential benefits justify the potential risks to the fetus. Clinical considerations A prospective longitudinal study of 201 women with history of major depression who were euthymic at the beginning of pregnancy, showed women who discontinued antidepressant medication during pregnancy were more likely to experience a relapse of major depression than women who continued antidepressant medication. Human data Neonates exposed to SNRIs (Serotonin and Norepinephrine Reuptake Inhibitors), or SSRIs (Selective Serotonin Reuptake Inhibitors), late in the third trimester have developed complications requiring prolonged hospitalization, respiratory support, and tube feeding.
Such complications can arise immediately upon delivery. Reported clinical findings have included respiratory distress, cyanosis, apnea, seizures, temperature instability, feeding difficulty, vomiting, hypoglycemia, hypotonia, hypertonia, hyperreflexia, tremor, jitteriness, irritability, and constant crying. These features are consistent with either a direct toxic effect of SSRIs and SNRIs or, possibly, a drug discontinuation syndrome.
It should be noted that, in some cases, the clinical picture is consistent with serotonin syndrome [see Warnings and Precautions (5.2)] . Animal data When desvenlafaxine succinate was administered orally to pregnant rats and rabbits during the period of organogenesis at doses up to 300 mg/kg/day and 75 mg/kg/day, respectively, no teratogenic effects were observed. These doses are 30 times a human dose of 100 mg per day (on a mg/m 2 basis) in rats and 15 times a human dose of 100 mg per day (on a mg/m 2 basis) in rabbits.
However, fetal weights were decreased and skeletal ossification was delayed in rats in association with maternal toxicity at the highest dose, with a no-effect dose 10 times a human dose of 100 mg per day (on a mg/m 2 basis). When desvenlafaxine succinate was administered orally to pregnant rats throughout gestation and lactation, there was a decrease in pup weights and an increase in pup deaths during the first four days of lactation at the highest dose of 300 mg/kg/day. The cause of these deaths is not known.
The no-effect dose for rat pup mortality was 10 times a human dose of 100 mg per day (on a mg/m 2 basis). Post-weaning growth and reproductive performance of the progeny were not affected by maternal treatment with desvenlafaxine succinate at a dose 30 times a human dose of 100 mg per day (on a mg/m 2 basis).
🧒 Pediatric Use ▾
8.4Pediatric Use Safety and effectiveness in pediatric patients have not been established [see Boxed Warning and Warnings and Precautions (5.1)] . Anyone considering the use of desvenlafaxine in a child or adolescent must balance the potential risks with the clinical need.
🧓 Geriatric Use ▾
8.5Geriatric Use Of the 4,158 patients in clinical studies with desvenlafaxine, 6% were 65 years of age or older. No overall differences in safety or efficacy were observed between these patients and younger patients; however, in the short-term placebo-controlled studies, there was a higher incidence of systolic orthostatic hypotension in patients ≥65 years of age compared to patients <65 years of age treated with desvenlafaxine [see Adverse Reactions (6)] . For elderly patients, possible reduced renal clearance of desvenlafaxine should be considered when determining dose [see Dosage and Administration (2.2) and Clinical Pharmacology (12.3)] .
SSRIs and SNRIs, including desvenlafaxine, have been associated with cases of clinically significant hyponatremia in elderly patients, who may be at greater risk for this adverse event [see Warnings and Precautions (5.9)] .
🆘 Overdosage ▾
10 OVERDOSAGE
10.1Human Experience with Overdosage There is limited clinical trial experience with desvenlafaxine succinate overdosage in humans. However, desvenlafaxine is the major active metabolite of venlafaxine. Overdose experience reported with venlafaxine (the parent drug of desvenlafaxine) is presented below; the identical information can be found in the Overdosage section of the venlafaxine package insert.
In postmarketing experience, overdose with venlafaxine (the parent drug of desvenlafaxine) has occurred predominantly in combination with alcohol and/or other drugs. The most commonly reported events in overdosage include tachycardia, changes in level of consciousness (ranging from somnolence to coma), mydriasis, seizures, and vomiting. Electrocardiogram changes (e.g., prolongation of QT interval, bundle branch block, QRS prolongation), sinus and ventricular tachycardia, bradycardia, hypotension, rhabdomyolysis, vertigo, liver necrosis, serotonin syndrome, and death have been reported.
Published retrospective studies report that venlafaxine overdosage may be associated with an increased risk of fatal outcomes compared to that observed with SSRI antidepressant products, but lower than that for tricyclic antidepressants. Epidemiological studies have shown that venlafaxine-treated patients have a higher pre-existing burden of suicide risk factors than SSRI-treated patients. The extent to which the finding of an increased risk of fatal outcomes can be attributed to the toxicity of venlafaxine in overdosage, as opposed to some characteristic(s) of venlafaxine-treated patients, is not clear.
10.2Management of Overdosage No specific antidotes for desvenlafaxine are known. In managing over dosage, consider the possibility of multiple drug involvement. In case of overdose, call Poison Control Center at 1-800-222-1222 for latest recommendations.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action The exact mechanism of the antidepressant action of desvenlafaxine is unknown, but is thought to be related to the potentiation of serotonin and norepinephrine in the central nervous system, through inhibition of their reuptake. Non-clinical studies have shown that desvenlafaxine is a potent and selective serotonin and norepinephrine reuptake inhibitor (SNRI).
12.2Pharmacodynamics Desvenlafaxine lacked significant affinity for numerous receptors, including muscarinic-cholinergic, H 1 -histaminergic, or α 1 -adrenergic receptors in vitro. Desvenlafaxine also lacked monoamine oxidase (MAO) inhibitory activity. ECG changes Electrocardiograms were obtained from 1,492 desvenlafaxine treated patients with major depressive disorder and 984 placebo-treated patients in clinical studies lasting up to 8 weeks.
No clinically relevant differences were observed between desvenlafaxine treated and placebo-treated patients for QT, QTc, PR, and QRS intervals. In a thorough QTc study with prospectively determined criteria, desvenlafaxine did not cause QT prolongation. No difference was observed between placebo and desvenlafaxine treatments for the QRS interval.
12.3Pharmacokinetics The single-dose pharmacokinetics of desvenlafaxine are linear and dose-proportional in a dose range of 50 to 600 mg per day. With once-daily dosing, steady-state plasma concentrations are achieved within approximately 4 to 5 days. At steady-state, multiple-dose accumulation of desvenlafaxine is linear and predictable from the single-dose pharmacokinetic profile.
Absorption and distribution The absolute oral bioavailability of desvenlafaxine after oral administration is about 80%. A food-effect study involving administration of desvenlafaxine extended-release tablets to healthy subjects under fasting and fed conditions (high-fat meal, 800 to 1000 calories) indicated that desvenlafaxine C max was increased about 16% in the fed state, while the AUCs were similar. This difference is not expected to be clinically significant; therefore, desvenlafaxine extended-release tablets can be taken without regard to meals [see Dosage and Administration (2.1)] .
The plasma protein binding of desvenlafaxine is low (30%) and is independent of drug concentration. The desvenlafaxine volume of distribution at steady-state following intravenous administration is
3.4L/kg, indicating distribution into nonvascular compartments. Metabolism and elimination Desvenlafaxine is primarily metabolized by conjugation (mediated by UGT isoforms) and, to a minor extent, through oxidative metabolism. CYP3A4 is the cytochrome P450 isozyme mediating the oxidative metabolism (N-demethylation) of desvenlafaxine.
The CYP2D6 metabolic pathway is not involved, and after administration of 100 mg, the pharmacokinetics of desvenlafaxine was similar in subjects with CYP2D6 poor and extensive metabolizer phenotype. Approximately 45% of desvenlafaxine is excreted unchanged in urine at 72 hours after oral administration. Approximately 19% of the administered dose is excreted as the glucuronide metabolite and <5% as the oxidative metabolite (N, O-didesmethylvenlafaxine) in urine.
Drug interaction studies Inhibitors of CYP3A4 (ketoconazole) CYP3A4 is a minor pathway for the metabolism of desvenlafaxine. In a clinical study, ketoconazole (200 mg BID) increased the area under the concentration vs. time curve (AUC) of desvenlafaxine (400 mg single dose) by about 43% and C max by about 8%. Concomitant use of desvenlafaxine with potent inhibitors of CYP3A4 may result in higher concentrations of desvenlafaxine.
Inhibitors of other CYP enzymes Based on in vitro data, drugs that inhibit CYP isozymes 1A1, 1A2, 2A6, 2D6, 2C8, 2C9, 2C19, and 2E1 are not expected to have significant impact on the pharmacokinetic profile of desvenlafaxine. Drugs metabolized by CYP2D6 (e.g. desipramine, dextromethorphan, metoprolol, atomoxetine) In vitro studies showed minimal inhibitory effect of d…
🧬 Mechanism of Action ▾
12.1Mechanism of Action The exact mechanism of the antidepressant action of desvenlafaxine is unknown, but is thought to be related to the potentiation of serotonin and norepinephrine in the central nervous system, through inhibition of their reuptake. Non-clinical studies have shown that desvenlafaxine is a potent and selective serotonin and norepinephrine reuptake inhibitor (SNRI).
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING Desvenlafaxine extended-release tablets are available as follows: 50 mg, light pink colored, diamond shaped, biconvex tablets, debossed with ‘L189’ on one side and plain on other side . NDC 46708-152-30, bottle of 30 tablets NDC 46708-152-90, bottle of 90 tablets 100 mg, dark brown to red colored, diamond shaped, biconvex tablets, debossed with ‘L190’ on one side and plain on other side. NDC 46708-153-30, bottle of 30 tablets NDC 46708-153-90, bottle of 90 tablets Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature] .
Each 50 mg or 100 mg extended-release tablet contains 50 or 100 mg of desvenlafaxine, respectively.
📋 Description ▾
11 DESCRIPTION Desvenlafaxine extended-release tablets for oral administration contains desvenlafaxine, a structurally novel SNRI for the treatment of MDD. Desvenlafaxine (O-desmethylvenlafaxine) is the major active metabolite of the antidepressant venlafaxine, a medication used to treat major depressive disorder. Desvenlafaxine is designated RS -4-[2-dimethylamino-1-(1-hydroxycyclohexyl)ethyl]phenol and has the empirical formula of C 16 H 25 NO 2 .
Desvenlafaxine has a molecular weight of 263.38. The structural formula is shown below. * Chiral Centre Desvenlafaxine is a white to off-white crystalline powder that is sparingly soluble in dimethyl sulfoxide. The solubility of desvenlafaxine is pH dependent.
Desvenlafaxine is formulated as an extended-release tablet for once-a-day oral administration. Each 50 mg or 100 mg extended-release tablet contains 50 or 100 mg of desvenlafaxine, respectively. Inactive ingredients for the 50 mg tablet consist of alginic acid, citric acid monohydrate powder, hypromellose, microcrystalline cellulose, povidone, talc, magnesium stearate and film coating, which consist of hypromellose, titanium dioxide, polyethylene glycol, talc, and iron oxide red.
Inactive ingredients for the 100 mg tablet consist of alginic acid, citric acid monohydrate powder, hypromellose, microcrystalline cellulose, povidone, talc, magnesium stearate and film coating, which consist of hypromellose, titanium dioxide, polyethylene glycol, iron oxide red, and iron oxide black. Structure
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION See FDA-approved patient labeling (Medication Guide). Advise patients, their families, and their caregivers about the benefits and risks associated with treatment with desvenlafaxine and counsel them in its appropriate use. Advise patients, their families, and their caregivers to read the Medication Guide and assist them in understanding its contents.
The complete text of the Medication Guide is reprinted at the end of this document. Suicide Risk Advise patients, their families and caregivers to look for the emergence of suicidality, especially early during treatment and when the dose is adjusted up or down [see Boxed Warning and Warnings and Precautions (5.1)]. Concomitant Medication Advise patients taking desvenlafaxine extended-release tablets not to use concomitantly other products containing desvenlafaxine or venlafaxine.
Healthcare professionals should instruct patients not to take desvenlafaxine with an MAOI or within 14 days of stopping an MAOI and to allow 7 days after stopping desvenlafaxine before starting an MAOI [see Contraindications (4)]. Serotonin Syndrome Caution patients about the risk of serotonin syndrome, particularly with the concomitant use of desvenlafaxine with other serotonergic agents (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, amphetamines, and St. John's Wort supplements) [see Warnings and Precautions (5.2)].
Elevated Blood Pressure Advise patients that they should have regular monitoring of blood pressure when taking desvenlafaxine [see Warnings and Precautions (5.3)]. Abnormal Bleeding Patients should be cautioned about the concomitant use of desvenlafaxine and NSAIDs, aspirin, warfarin, or other drugs that affect coagulation since combined use of psychotropic drugs that interfere with serotonin reuptake and these agents has been associated with an increased risk of bleeding [see Warnings and Precautions (5.4)]. Angle Closure Glaucoma Patients should be advised that taking desvenlafaxine can cause mild pupillary dilation, which in susceptible individuals, can lead to an episode of angle closure glaucoma.
Pre-existing glaucoma is almost always open-angle glaucoma because angle closure glaucoma, when diagnosed, can be treated definitively with iridectomy. Open-angle glaucoma is not a risk factor for angle closure glaucoma. Patients may wish to be examined to determine whether they are susceptible to angle closure, and have a prophylactic procedure (e.g., iridectomy), if they are susceptible [see Warnings and Precautions (5.5)].
Activation of Mania/Hypomania Advise patients, their families and caregivers to observe for signs of activation of mania/hypomania [see Warnings and Precautions (5.6)]. Discontinuation Advise patients not to stop taking desvenlafaxine without talking first with their healthcare professional. Patients should be aware that discontinuation effects may occur when stopping desvenlafaxine [see Warnings and Precautions (5.7) and Adverse Reactions (6.1)].
Switching Patients From Other Antidepressants to Desvenlafaxine Discontinuation symptoms have been reported when switching patients from other antidepressants, including venlafaxine, to desvenlafaxine. Tapering of the initial antidepressant may be necessary to minimize discontinuation symptoms. Interference with Cognitive and Motor Performance Caution patients about operating hazardous machinery, including automobiles, until they are reasonably certain that desvenlafaxine therapy does not adversely affect their ability to engage in such activities.
Alcohol Advise patients to avoid alcohol while taking desvenlafaxine [see Drug Interactions (7.7)]. Allergic Reactions Advise patients to notify their physician if they develop allergic phenomena such as rash, hives, swelling, or difficulty breathing. Pregnancy Advise patients to notify their physician if they become pregnant or intend to become pregnant during therapy [see Use in Specific Populatio…
💬 Medication Guide ▾
Medication Guide DESVENLAFAXINE extended-release tablets (des VEN la FAX een) Read this Medication Guide before you start taking desvenlafaxine and each time you get a refill. There may be new information. This information does not take the place of talking to your healthcare provider about your medical condition or treatment.
Antidepressant Medicines, Depression and Other Serious Mental Illnesses, and Suicidal Thoughts or Actions Talk to your healthcare provider about: • all risks and benefits of treatment with antidepressant medicines • all treatment choices for depression or other serious mental illness What is the most important information I should know about antidepressant medicines, depression and other serious mental illnesses, and suicidal thoughts or actions? 1. Antidepressant medicines may increase suicidal thoughts or actions in some children, teenagers, and young adults within the first few months of treatment.
2. Depression and other serious mental illnesses are the most important causes of suicidal thoughts and actions. Some people may have a particularly high risk of having suicidal thoughts or actions.
These include people who have (or have a family history of) bipolar illness (also called manic-depressive illness) or suicidal thoughts or actions. 3. How can I watch for and try to prevent suicidal thoughts and actions? • Pay close attention to any changes, especially sudden changes, in mood, behaviors, thoughts, or feelings.
This is very important when an antidepressant medicine is started or when the dose is changed. • Call the healthcare provider right away to report new or sudden changes in mood, behavior, thoughts, or feelings. • Keep all follow-up visits with the healthcare provider as scheduled. Call the healthcare provider between visits as needed, especially if you have concerns about symptoms. Call a healthcare provider right away if you have any of the following symptoms, especially if they are new, worse, or worry you: • thoughts about suicide or dying • trouble sleeping (insomnia) • attempts to commit suicide • new or worse irritability • new or worse depression • acting aggressive, being angry, or violent • new or worse anxiety • acting on dangerous impulses • feeling very agitated or restless • an extreme increase in activity and talking (mania) • panic attacks • other unusual changes in behavior or mood What else do I need to know about antidepressant medicines? • Never stop an antidepressant medicine without first talking to a healthcare provider.
Stopping an antidepressant medicine suddenly can cause other symptoms. • Antidepressants are medicines used to treat depression and other illnesses. It is important to discuss all the risks of treating depression and also the risks of not treating it. Patients should discuss all treatment choices with the healthcare provider, not just the use of antidepressants. • Antidepressant medicines have other side effects.
Talk to the healthcare provider about the side effects of this medicine. • Antidepressant medicines can interact with other medicines. Know all of the medicines that you take. Keep a list of all medicines to show the healthcare provider.
Do not start new medicines without first checking with your healthcare provider. • Not all antidepressant medicines prescribed for children are FDA approved for use in children. Talk to your child’s healthcare provider for more information. Important Information about desvenlafaxine extended-release tablets Read the patient information that comes with desvenlafaxine before you take desvenlafaxine and each time you refill your prescription.
There may be new information. If you have questions, ask your healthcare provider. This information does not take the place of talking with your healthcare provider about your medical condition or treatment.
What is desvenlafaxine? • Desvenlafaxine is a prescription medicine used to treat depression. Desvenlafaxine belongs to a class of medicines known as SNRIs (or serotoni…