Cymbalta Taper Schedule
Build a gradual duloxetine reduction plan — with dates, step sizes, and honest guidance about the capsule problem.
Cymbalta (duloxetine) shares Effexor's core difficulty: the capsules are enteric-coated delayed-release, meaning they can't be split or crushed, and the smallest US capsule is 20mg. A taper that needs a 15mg or 8mg step has nowhere to get one from the standard form.
Combined with a moderate half-life (~12 hours), that makes duloxetine a drug where the plan matters more than the willpower. This tool builds a proportional taper and flags exactly where the formulation becomes the limiting factor.
Drug class
SNRI
Half-life
~12 hours
US strengths
20mg, 30mg, 60mg capsules
Liquid available
No US liquid formulation
Why the enteric coating matters
Duloxetine is acid-labile — stomach acid degrades it — so the capsules contain enteric-coated pellets that survive the stomach and release in the small intestine. That coating is not decorative. Crushing the pellets destroys the protection and changes how much drug actually reaches your bloodstream.
This rules out the simplest tapering tricks. You cannot halve a Cymbalta capsule, and you cannot crush the contents into a measured portion the way you might with a plain tablet.
What remains: stepping down through the available strengths (60 → 30 → 20mg), counting pellets with prescriber guidance, or having doses compounded. Each has trade-offs worth discussing before you reach the point of needing them.
The gap between 20mg and zero
The common failure point with duloxetine is the last capsule. People step 60 → 30 → 20mg reasonably comfortably, then discover there's no 10mg and no 5mg — and the jump from 20mg to nothing is a large one for an SNRI with a 12-hour half-life.
Alternate-day dosing is sometimes suggested here. With a 12-hour half-life it works poorly: levels fall substantially between doses, producing a repeated withdraw-and-reload cycle rather than a smooth taper.
The better-planned routes are pellet counting under prescriber supervision, or compounded capsules in small strengths. Both require setting up in advance, which is why the schedule below flags the step where you'll need one — so it isn't a surprise.
Symptoms that look like something else
Duloxetine discontinuation frequently brings dizziness, nausea, headache, irritability, and the electrical 'brain zap' sensations common to SNRI and SSRI withdrawal. Many people also report a flu-like heaviness that's easy to mistake for actually being ill.
Because duloxetine is also prescribed for chronic pain and fibromyalgia, tapering can additionally unmask pain that the medication was managing. That's a different phenomenon from withdrawal, and it deserves a different response — worth naming explicitly with your prescriber if pain was part of why you started.
As always: symptoms that don't settle at a stable dose, or that escalate, are a reason to stop descending and talk to your prescriber rather than to push through.
Frequently Asked Questions
Can you open Cymbalta capsules to taper?
The capsules contain enteric-coated pellets that must not be crushed or chewed — the coating protects the drug from stomach acid. Counting pellets to create smaller doses is a documented approach in deprescribing practice, but it should only be done with your prescriber's knowledge and requires consistency to be meaningful. Compounded small-strength capsules are the alternative that avoids the issue entirely.
How do I taper from 60mg of Cymbalta?
Available capsule strengths give you 60 → 30 → 20mg, which is a reasonable start but represents large proportional drops (a 50% cut at the first step). A proportional taper would use much smaller steps. Enter 60 above to see what the gradual version looks like and where the capsule strengths stop being able to deliver it — that's the point to discuss pellet counting or compounding with your prescriber.
Why is there no 10mg Cymbalta?
20mg is the smallest capsule marketed in the US. This is a well-recognised problem in the deprescribing literature — the available strengths were designed around starting treatment, not stopping it. It's the main reason duloxetine tapers stall at the low end, and the reason compounding pharmacies and pellet counting come up so often in this specific drug's taper discussions.
Can I take Cymbalta every other day to come off it?
It's frequently suggested and generally works poorly. With a ~12-hour half-life, blood levels fall substantially in the 48 hours between doses, so alternate-day dosing creates a repeated cycle of withdrawal followed by re-exposure rather than a steady decline. Reducing the daily dose — even if that requires compounding or pellet counting — is gentler than reducing the frequency.
How long does Cymbalta withdrawal last?
It varies with dose, duration of use, and taper speed. Symptoms usually begin within a few days of a reduction and ease over days to weeks at a stable dose. The strongest lever you control is the size of each step: smaller reductions with longer holds reliably produce milder and shorter symptoms than large drops, even though the total taper takes longer.
Sources & methodology
Reduction percentages follow the proportional (“hyperbolic-style”) tapering approach described by Horowitz & Taylor (Lancet Psychiatry, 2019) and the Maudsley Deprescribing Guidelines: reducing by a percentage of the current dose, so cuts get smaller as the dose falls. Half-life values and available strengths follow US FDA labeling. This schedule builder performs arithmetic only — it is educational, not a prescription. Always work with your prescriber.