Sotyktu
A once-daily tablet for moderate to severe plaque psoriasis. It blocks TYK2, an enzyme inside immune cells, and is taken by mouth rather than injected.
Key facts
Sotyktu at a glance.
Used for
Moderate to severe plaque psoriasis
Results
Assess at 16 weeks
Treatment commitment
Daily, ongoing
Key precautions
Infection and TB screening
What is it?
Top things to know about Sotyktu
- It is a TYK2 inhibitor. It blocks signaling by IL-23, IL-12 and type I interferons.
- It is an oral systemic treatment. Its effects are not limited to the skin surface.
- It treats psoriasis and psoriatic arthritis. It is labeled for adults with moderate to severe disease.
- Its risk profile differs. It has no JAK boxed warning, though the label notes uncertainty.
HOW IT WORKS
How Sotyktu works
Diagram explanation and sources
Inhibits TYK2: Keeps this signaling enzyme in an inactive state. Reduces immune messages: Limits signals from IL-23, IL-12, and type I interferons. Helps psoriasis settle: Inflammation and plaque buildup gradually decrease.
Deucravacitinib allosterically binds the regulatory domain of TYK2. The exact link between biomarker changes and clinical effects is not fully known.
Strengths
Deucravacitinib strengths
Deucravacitinib is supplied as a 6 mg tablet. The labeled regimen is once daily; this is a TYK2 medicine with its own prescribing information, not a milligram-equivalent substitute for baricitinib, ritlecitinib or other JAK-pathway medicines.
6 mg
Swallow the tablet whole; the label says not to crush, cut or chew it. There is no routine series of stronger Deucravacitinib tablets.
Strength sources
Forms
Deucravacitinib forms
Tablet
A solid oral form. Size, coating and ease of swallowing vary by product.
How to use it
Your treatment, step by step.
How to take it
- 01
When to take it
Once a day, at whatever time suits you, with or without food. Pick one time and keep to it, because a daily tablet is easy to lose track of in a way a fortnightly injection is not. Attaching it to something you already do, like brushing your teeth at night, works better than intending to remember.
Swallow the tablet whole with water. Do not crush, split or chew it. If it upsets your stomach, take it with a meal. - 02
If you miss a dose
Take it as soon as you remember on the same day. If you do not remember until the next day, skip it and take that day's tablet as usual. Never take two in one day. Missing the occasional dose will not undo months of progress, but repeatedly missing them is one of the commonest reasons a treatment looks like it has stopped working.
Monitoring & follow-up
Everyone is screened for tuberculosis before starting, with a skin test or a TB blood test, and a chest X-ray if positive. Dormant TB is treated first. This applies even though it is a tablet rather than an injected biologic.
Hepatitis B and C are usually checked at the same time.
Liver blood tests are often checked before starting and again if there is a reason to. Some people show a rise in creatine kinase, a muscle enzyme, or in triglycerides, so those may be looked at too. There is no rigid schedule like methotrexate's; how often anything is repeated is your doctor's judgment.
The rest is clinical. Report repeated infections, cold sores that keep coming back, mouth ulcers that will not heal, and unexplained muscle pain. Skin should be checked periodically, as on any drug that damps down the immune response.
What to expect
How things change over time.
Taking it
One tablet a day, with or without food.
Starting
Itch usually eases before the plaques look different. Early side effects show now, most often a cold, a cold sore or a mouth ulcer.
Working
Scale lifts and plaques flatten steadily. Scalp psoriasis often improves noticeably here, before the trunk.
Judge it here
Where the trials measured, and the fair point to decide. More than half reached at least a 75 percent improvement in how much skin was involved and how severe it was; a smaller share were clear or nearly clear.
Palms and soles
Stubborn on every treatment, slower than plaques elsewhere.
Nails
Nails change last, because a nail takes months to grow out. Judge the new growth at the base, not the damaged tip.
Long term
Responders often keep improving slowly through the first year. Because it is a small molecule, the body does not make antibodies against it, so the gradual loss of effect seen with some injected drugs is not an issue here.
- First dose
- Weeks 1 to 4
- Weeks 4 to 16
- Week 16
- Months 3 to 6
- Months 6 to 12
- Beyond 16 weeks
When you stop
There is no taper and no withdrawal reaction. Stopping does not cause the sudden severe flare that stopping oral steroids can.
The drug clears within days, so psoriasis returns sooner than after stopping an injected biologic, usually over several weeks to a couple of months.
Restarting generally works. Because it is a small molecule rather than an antibody, the body does not build antibodies against it during a break, a real advantage over the injected drugs if you need to stop for a while.
What it Pairs with
Sotyktu + your routine
| Product or situation | With Sotyktu | What to know |
|---|---|---|
| Live vaccines | Avoid | These contain a weakened live germ and are avoided while you take deucravacitinib. The main ones are measles-mumps-rubella, chickenpox, yellow fever and the nasal spray flu vaccine. Have any you need before you start. Non-live vaccines, including the flu shot, COVID, pneumonia and Shingrix, are usually encouraged. |
| Taking it through an active infection | Avoid | With a fever or an infection on antibiotics, ask before carrying on. A short pause is straightforward with a daily tablet. |
| Crushing, splitting or chewing the tablet | Avoid | The coating is part of how it is absorbed. It has to go down whole. |
| Stopping and restarting on your own | Avoid | Psoriasis returns when the drug is out of your system, and stop-start use makes the drug impossible to judge. |
| Assuming a supplement is harmless | Use care | Bring the actual bottles to your appointment. This is a newer drug and the interaction list is shorter than it will eventually be. |
| If you have ever had tuberculosis, a positive TB test, or close contact with someone who had TB | Use care | Settled before the first tablet. |
| If you have hepatitis B or C, or have ever been told you are a carrier | Use care | It is checked before starting. |
| If you have liver disease | Use care | Not recommended in severe liver disease, so this changes the plan. |
| If you get cold sores or shingles often | Use care | Herpes infections are commonly reported, so agree a plan in advance. |
| If you develop muscle pain or weakness | Use care | Dark urine counts too. Rises in a muscle enzyme have been reported; get checked rather than waiting. |
| If you get mouth ulcers | Use care | Ulcers that will not heal, or an infection that keeps returning, are worth reporting between appointments. |
| If you have had cancer of any kind | Use care | Individual decision, and your oncologist should be part of it. |
| If you are due any vaccine | Use care | A live one especially. Timing matters. |
| If you are pregnant or breastfeeding | Use care | Planning a pregnancy counts too. Ask the doctor managing your pregnancy before you start or stop. |
| If you take other immune medicines | Use care | Combining them is generally avoided, so your doctor needs the full list. |
Side effects & when to get help
One of the better-tolerated psoriasis pills. Most of what turns up is minor infections and mouth sores.
Common
Colds and sinus infections: The most common thing by far.
Mouth sores or cold sores: Usually small and short-lived.
Acne-like spots: Mild, and they respond to normal treatment.
Rash
Tell your doctor
An infection that is not clearing
A painful rash in a band, or blisters: Shingles has been reported.
Rising liver enzymes or triglycerides: From your routine blood tests.
A new lump or a changing mole: Keep up your skin checks.
Stop and get care
Fever with shaking chills or feeling very ill
A cough with fever, night sweats and weight loss: Tuberculosis is screened for before you start.
Getting it and cost
Getting Sotyktu.
Cost & access
Brand only. There is no generic and will not be for years, so there is no cheaper equivalent. The list price is high, in the same range as the injected biologics over a year, which surprises people who assume a tablet must be cheaper.
What affects the cost
Almost nobody pays it. What matters is what your plan does, and approval takes paperwork. Prior authorization is close to universal, and most plans want documented failure of something cheaper first: phototherapy, methotrexate or apremilast.
What affects the cost
Manufacturer copay cards can bring the monthly cost down to very little on commercial insurance. By law they cannot be used with Medicare or Medicaid. For those plans, or no insurance, the manufacturer's patient assistance program and independent foundations are the usual routes, and the rules change regularly.
One thing in its favor on cost
no infusion visits, no injection training, no cold chain, so the costs around the drug are lower even when the drug is not.
Alternatives
Other options to consider.
Apremilast
The other oral option, taken twice a day. Moderate evidence. It has a longer safety record but generally clears skin less well, and diarrhea, nausea and headache in the first weeks are common enough that some people stop.
Methotrexate
And decades of use. Cheap, taken weekly, and it treats joints as well as skin. It needs regular blood tests, cannot be used in pregnancy, and clears skin fully for fewer people.
Acitretin
An older oral option, sometimes useful for palm and sole psoriasis. It cannot be used by anyone who could become pregnant, for years after stopping.
Phototherapy
With no drug in the body at all. The cost is time: two or three clinic visits a week for months.
Injected biologics
Including the TNF, IL-17 and IL-23 blockers. Strong evidence, and on average more complete skin clearing than any oral option. The trade is injections, refrigeration and, for some, a heavier warning profile.
JAK inhibitors
Such as upadacitinib and tofacitinib. Used in psoriatic arthritis and other conditions rather than approved for plaque psoriasis in the United States. They block the JAK enzymes broadly and carry a boxed warning that deucravacitinib does not.
Questions
Questions you might be asking.
Is this a JAK inhibitor?
It works on TYK2, an enzyme in the same family, but binds a different part of it and is far more selective. Its label does not carry the boxed warning the JAK inhibitors carry. The distinction is real, not marketing.
How does a pill compare with the injections?
On average the injected biologics clear skin more completely. This clears skin well for a lot of people, and it is a daily tablet with no fridge and no needles. Which trade is right depends on how severe your psoriasis is and how you feel about needles.
Do I need regular blood tests?
Tuberculosis and hepatitis before you start, and usually liver tests. After that, testing follows your situation, not a fixed schedule — much lighter than methotrexate monitoring.
Why do I keep getting cold sores?
Herpes simplex outbreaks and mouth ulcers are commonly reported. Tell your doctor if they are frequent; they can usually be managed without stopping.
Can I drink alcohol?
No direct interaction, unlike methotrexate. Ordinary drinking is generally not a problem, but confirm with your doctor if you have a liver condition.
What if it stops working?
Losing response over time is less of an issue than with injected antibodies, since the body makes no antibodies against a small molecule. If it does stop working, the option is switching class, since there is no higher dose.
