Rankings / Mood, Anxiety & Stress
SNRIs (venlafaxine / duloxetine)
Mood, Anxiety & Stress · Dual SERT/NET reuptake inhibitor
Tier B
Bottom line
Read Off Label grades SNRIs (venlafaxine / duloxetine) as B (6.8/10) based on strong evidence, strong benefit magnitude, and a med-risk safety profile.
Useful when depression coexists with pain or fatigue.
Typical use: Venlafaxine 37. — Rx.
What this is
Useful when depression coexists with pain or fatigue. Venlafaxine discontinuation can be particularly severe — taper cautiously, sometimes cross-titrate to fluoxetine. Duloxetine has FDA pain indications (diabetic neuropathy, fibromyalgia, chronic musculoskeletal pain). A 2025 systematic review/meta-analysis quantified increased GI bleeding risk for serotonergic antidepressants, and observational data link SNRIs to fall-related hospitalizations in older adults.
Mechanism
Block both serotonin and norepinephrine reuptake; pain and fatigue indications in addition to depression/anxiety; venlafaxine primarily serotonergic at low doses, adds norepinephrine >150 mg
Dose & route
Venlafaxine 37.5-300 mg XR; duloxetine 30-120 mg PO daily
Citations
- https://pubmed.ncbi.nlm.nih.gov/29477251/
- https://pubmed.ncbi.nlm.nih.gov/17472803/
- https://pmc.ncbi.nlm.nih.gov/articles/PMC3131098/
- https://pubmed.ncbi.nlm.nih.gov/41461139/
- https://doi.org/10.3389/fpsyt.2026.1756085
- https://doi.org/10.71350/jclp.31
Links go to the source. If a link is dead or you want something re-checked, let me know.
Common questions
- Does SNRIs (venlafaxine / duloxetine) work?
- Read Off Label rates the evidence for SNRIs (venlafaxine / duloxetine) as Strong and the benefit magnitude as strong, producing an overall grade of B (6.8/10). Useful when depression coexists with pain or fatigue.
- Is SNRIs (venlafaxine / duloxetine) safe?
- SNRIs (venlafaxine / duloxetine) has a med risk profile in published human data. Legal status: Rx. This is not medical advice — see the disclaimer.
- What is the typical dose for SNRIs (venlafaxine / duloxetine)?
- Venlafaxine 37.5-300 mg XR; duloxetine 30-120 mg PO daily
- How does SNRIs (venlafaxine / duloxetine) work?
- Block both serotonin and norepinephrine reuptake; pain and fatigue indications in addition to depression/anxiety; venlafaxine primarily serotonergic at low doses, adds norepinephrine >150 mg
This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.