Cyclosporine vs Sotyktu

Cyclosporine: A strong oral immune-suppressing drug used in short bursts for severe eczema and psoriasis. It works faster than anything else, and blood pressure and kidney function set a hard limit on how long anyone stays on it. 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.

Reviewed by Dr. Schwarz, Board-Certified Dermatologist

An amber pill bottle labeled Cyclosporine tipped over with white tablets spilling out

Existing illustration of a plain white bottle labeled Tablets beside white tablets; no medicine name or strength is shown.

Which one?At a glance What it treats Diagrams How you take it Results Side effects Safety Cost When you stop Questions

Which one is right for you?

Choose Cyclosporine if…

Choose for a fast, short burst of control in severe eczema or psoriasis while a longer-term treatment is set up.

Severe flares needing fast control
A bridge to a biologic or other long-term drug
Normal kidneys and blood pressure

Choose Sotyktu if…

Choose for moderate to severe psoriasis when you want a once-daily pill rather than injections.

Moderate to severe plaque or scalp psoriasis
You'd rather avoid injections
Once-daily dosing suits you

Alternatives, not combined

Can you take them together?

These are not taken together. Cyclosporine is a short-term rescue; Sotyktu is a long-term daily tablet.

At a glance

● Cyclosporine

● Sotyktu

Type

Oral immune suppressant

Oral TYK2 inhibitor (deucravacitinib)

What it does

Rapidly switches off overactive immune cells in the skin

Blocks an enzyme inside immune cells that drives psoriasis

Best for

Severe eczema and psoriasis flares

Moderate to severe plaque psoriasis

Prescription

Yes

Form

Capsule or liquid

Tablet, 6 mg

How often

Twice daily

Once daily

Course length

Months; about 1 year at most

Ongoing

Time to results

2–6 weeks

16 weeks

Main side effect

Raised blood pressure; extra hair; swollen gums

Colds, mouth sores, acne

Blood tests

Kidney, blood pressure, others

Sometimes

Pregnancy

Check with your clinician

Cost

Low to moderate; generic available

High; brand only

What it treats

Compare uses by strength of evidence. Evidence level describes confidence in a benefit, not its size.

Evidence level

Cyclosporine

Sotyktu

Strong evidenceMost established uses

Eczema

Rapidly controls severe flares.

Two thick, sharply bordered plaques on a knee on fair light skin. They are salmon-pink to red with loose silvery-white scale on top.

Psoriasis

Clears severe plaques quickly.

Psoriasis

Clears moderate to severe plaques.

Moderate evidenceSome supportive research

Large raised welts across an upper back on light skin. The welts are pink to red with paler swollen centers, and the edges stand clearly above the surrounding skin.

Hives

Used for severe chronic hives.

Parted hair on fair scalp skin showing a raised salmon-pink plaque topped with dry silvery-white scale, with a sharply drawn border against normal skin.

Scalp Psoriasis

Improves scalp involvement.

Little evidence

—

Eczema

Not approved for eczema.

Not effective

Acne

No role in acne.

—

Can make it worse

Melanoma

Raises skin cancer risk with long use.

Acne

Acne is a known side effect.

How it works

Cyclosporine. Turns down T-cell signals that drive skin inflammation. 1. Inhibits calcineurin: Binds cyclophilin to block a T-cell activation switch. 2. Reduces IL-2 signals: Limits a messenger that helps T cells become active. 3. Calms skin inflammation: Overactive immune responses in skin decrease. — Open full-size diagram
Diagram explanation and sources
Inhibits calcineurin: Binds cyclophilin to block a T-cell activation switch. Reduces IL-2 signals: Limits a messenger that helps T cells become active. Calms skin inflammation: Overactive immune responses in skin decrease.
Cyclosporine binds cyclophilin; that complex inhibits calcineurin and T-cell cytokine production. This is a simplified skin-focused explanation of systemic immunosuppression.
Source 1 · Source 2

Sotyktu. Deucravacitinib turns down psoriasis-related signals. 1. Inhibits TYK2: Keeps this signaling enzyme in an inactive state. 2. Reduces immune messages: Limits signals from IL-23, IL-12, and type I interferons. 3. Helps psoriasis settle: Inflammation and plaque buildup gradually decrease. — Open full-size diagram
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.
Source 1

How you take it

Treatment plan

The dose is set by body weight, then adjusted by blood pressure and kidney tests, not by how the skin looks.

Starting dose: About 2.5 mg per kilogram of body weight a day, split into two doses. A severe flare may start around 4 to 5 mg per kilogram a day to get control quickly.

Going up: Raised in small steps every two to four weeks if response is poor, and only if the tests are stable.

Coming down: Once the skin is calm, the dose comes down in stages, to give the next treatment time to work.

Total course: Short by design. Many courses run 8 to 16 weeks. Guidelines advise no more than about a year of continuous treatment, less where possible.

Dosing is as simple as it gets for a systemic drug. No loading dose, no build-up, no weight adjustment.

Starting dose: 6 mg once a day from day one. Full dose from the start.

Going up: No higher approved dose for psoriasis. If it is not working, the conversation is about switching.

Usual dose: 6 mg once a day, long term.

Kidney function: No dose change for most levels of reduced kidney function.

Severe liver disease: Not recommended, so tell your doctor about any liver condition before you start.

When to take it

Twice a day, about 12 hours apart, at the same times daily. Be consistent about food: always with meals or always without, because switching changes absorption. Swallow capsules whole and leave them in the foil until you take them.

On the liquid, mix it with orange or apple juice in a glass cup, stir and drink it straight away, then rinse the cup with more juice and drink that too. Never use grapefruit juice.

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.

If you miss a dose

Take it when you remember unless the next dose is close, then skip it. Never take two at once. Tell the prescriber if you miss more than a dose or two, or vomit soon after taking it, because the dose is built around your blood level.

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

Cyclosporine is monitored more closely than any other skin drug, and that monitoring is why it can be used at all. Blood pressure is measured at every visit, often at home. Kidney function is checked by blood test, twice before starting for a reliable baseline, then every couple of weeks for a month or two, then monthly once the dose is steady. The same draws cover potassium, magnesium, uric acid, liver enzymes, blood counts and cholesterol. Drug blood levels are routine in transplant care, not usually needed at dermatology doses.

Two numbers drive the decisions. A rise in creatinine of about a quarter above your baseline, confirmed on a repeat test, means dropping the dose; about half means stopping. New high blood pressure means lowering the dose or adding a blood pressure medicine, and the choice matters: diltiazem and verapamil push levels up, amlodipine does not.

The interaction list is long. Drugs that raise levels include the azole antifungals, clarithromycin and erythromycin, and some HIV and hepatitis C medicines. Drugs that lower it include rifampin, phenytoin, carbamazepine and St John's wort. It also raises statin levels, so that dose is often reduced, and it interacts with colchicine, digoxin, methotrexate and potassium-sparing water tablets. Bring every prescription, supplement and herbal product to the first visit.

The time limit is the point of all this. Kidney damage builds with continuous use and part of it can be permanent, so guidelines cap continuous treatment at about a year and most dermatology courses are far shorter. Long or repeated use also raises the risk of skin cancer, lymphoma and serious infection, so skin checks continue afterward.

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.

When you’ll see results

Approximate windows, not promises.

● Cyclosporine

● Sotyktu

First 2 weeks

First 2 weeksStarting: Itch settles first, often within days, and sleep improves. Tingling or burning in the hands and feet, headache and mild nausea are common early. Blood pressure and kidney tests get checked.

Weeks 2 to 6

Weeks 2 to 6Working: Redness, weeping and thickness improve clearly. Chronic hives that antihistamines do not control usually settle within a month. Extra hair growth on the face, arms and body and swollen or tender gums start now; both are dose-related and reverse after stopping.

Weeks 8 to 16

Weeks 8 to 16Plaque psoriasis: Large improvement, often near-clear at the higher end of the dose range. Usually where the course ends and another treatment takes over.

Variable

VariableSevere inflammatory ulcers: In pyoderma gangrenosum it stops the ulcer spreading while healing catches up. Response times differ a lot.

Throughout

ThroughoutThe tests: Blood pressure creeping up and kidney numbers drifting decide whether the dose drops or the drug stops. Neither causes symptoms, which is why the tests are not optional.

First dose

First doseTaking it: One tablet a day, with or without food.

Weeks 1 to 4

Weeks 1 to 4Starting: Itch usually eases before the plaques look different. Early side effects show now, most often a cold, a cold sore or a mouth ulcer.

Weeks 4 to 16

Weeks 4 to 16Working: Scale lifts and plaques flatten steadily. Scalp psoriasis often improves noticeably here, before the trunk.

Week 16

Week 16Judge 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.

Months 3 to 6

Months 3 to 6Palms and soles: Stubborn on every treatment, slower than plaques elsewhere.

Months 6 to 12

Months 6 to 12Nails: Nails change last, because a nail takes months to grow out. Judge the new growth at the base, not the damaged tip.

Beyond 16 weeks

Beyond 16 weeksLong 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.

Side effects

Sorted by what to do about them.

Cyclosporine

Sotyktu

Common

Raised blood pressure
Extra hair growth; swollen gums
Tremor, headache, tingling

Common

Colds and sinus infections
Mouth sores, acne

Tell your doctor

Passing less urine or swelling

Tell your doctor

Muscle pain or weakness
Shingles rash

Stop and get care

Fever or signs of serious infection
Severe headache, confusion or seizures

Stop and get care

Fever with serious infection
Swelling of face or throat

Safety and who should avoid it

Pregnancy

Use care

Ask the doctor managing your pregnancy; do not stop alone.

Ask first

Discuss with your clinician.

Breastfeeding

Avoid

Not recommended.

Ask first

Discuss with your clinician.

Children

Specialist only

Used in severe childhood eczema.

Not used

Adults only.

Monitoring

Required

Blood pressure and kidney tests every 2 weeks at first, then monthly.

Sometimes

TB and hepatitis screening; cholesterol.

Key interactions

Check

Many — grapefruit, some antibiotics, antifungals, statins, St John's wort.

Check

Avoid live vaccines.

Other cautions

Avoid

Uncontrolled blood pressure, kidney disease, cancer; limit sun and avoid light therapy.

Avoid

Active serious infection or TB.

Cost and getting it

Getting it and cost

Generic capsules are cheap next to biologics, part of why the drug is still used. Branded versions cost more without working better.

The visible cost is not the whole cost. Repeated blood tests, blood pressure checks and appointments add up, and none are optional. It is cheaper per month than a biologic but taken for only a few months, so the comparison depends on what comes after.

Insurance generally covers it for severe psoriasis. Eczema coverage varies more in the United States, where that use is off-label.

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.

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.

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.

When you stop

Comes back?

Often, so a longer-term plan is put in place first.

Psoriasis returns over weeks to months.

Taper needed?

Usually reduced gradually.

No.

After the last dose

Blood pressure, hair and gum changes reverse.

Restarting usually works again.

Common questions

Cyclosporine:How quickly will it work?

Faster than anything else for these conditions. Itch improves within days, clearing by four to six weeks.

Cyclosporine:How long can I stay on it?

Most courses run months. Guidelines cap continuous use at about one year, because kidney effects build and some can be permanent.

Cyclosporine:Why do I need my blood pressure checked so often?

It raises blood pressure in a meaningful share of people, and that causes no symptoms. Catching it early usually means lowering the dose rather than stopping.

Cyclosporine:Can I drink grapefruit juice?

No. Grapefruit, pomelo and Seville oranges block the enzyme that clears it, so levels rise unpredictably. Other citrus is fine.

Cyclosporine:Why is hair growing where it did not before, and why are my gums sore?

Both are dose-related. Not dangerous, usually better if the dose comes down, and gone after stopping.

Cyclosporine:Will my skin flare again when I stop?

Usually, within weeks to a few months, unless another treatment is running. Planning that before the taper is the point of the short course.

Sotyktu: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.

Sotyktu: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.

Sotyktu: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.

Sotyktu: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.

Sotyktu: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.

Sotyktu: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.

Dermapedia on YouTube