
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. Otezla: An oral pill for plaque psoriasis, psoriatic arthritis and the mouth ulcers of Behcet's disease. It needs no routine blood tests, and it is gentler and less powerful than the injected treatments.


Choose for a fast, short burst of control in severe eczema or psoriasis while a longer-term treatment is set up.
Choose for moderate psoriasis or psoriatic arthritis when you want a pill with no routine blood tests, accepting it's gentler than injections.
Can you take them together?
These are different options for psoriasis and are not usually taken together. Cyclosporine is for fast, short-term control; Otezla is a long-term tablet.
Compare uses by strength of evidence. Evidence level describes confidence in a benefit, not its size.











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.

Blocks PDE4: Inhibits an enzyme that breaks down cAMP. Raises cAMP inside cells: Preserves a signal involved in regulating inflammation. Helps inflamed skin settle: Psoriasis plaques become less inflamed.
PDE4 inhibition and increased intracellular cAMP are established. The exact link to clinical improvement is not fully defined; this is a simplified overview, not every downstream pathway.
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.
Nothing about the dose depends on weight or on how severe your disease is. It is built up gradually only to give your stomach time to settle.
Starting dose: A five-day starter pack, beginning at 10 mg on day one and climbing in 10 mg steps, morning and evening doses in turn, until you reach 30 mg twice a day on day six.
Usual dose: 30 mg twice a day, about 12 hours apart.
If your kidneys are significantly impaired: The dose is halved to 30 mg once a day, and the starter pack is used differently.
Total course: No fixed course. It is taken as long as it helps, judged at about 16 weeks, and the benefit stops when the drug stops.
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.
Twice a day, roughly 12 hours apart, with or without food — food helps some people with nausea. Swallow the tablets whole; do not crush, split or chew them.
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, unless the next dose is close, in which case skip it. Never take two at once. If you have stopped for more than a few days, ask before restarting; the full dose brings the stomach side effects straight back, so the starter pack is usually repeated.
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.
The absence of blood tests is why many people choose this drug. No baseline blood count, no liver panel, no tuberculosis test, no hepatitis screen, nothing repeated. Kidney function is checked once before starting, because severe impairment halves the dose.
What replaces it is clinical monitoring, which is not lighter, only different. Weight comes first. Weight loss is common and can be substantial, with some people losing five to ten percent of their body weight. If you wanted that, it is welcome. If you are older, frail or already underweight, it is a reason to reconsider, and unexplained loss should prompt a review.
Mood is second. Depression, low mood and, rarely, suicidal thoughts have been reported and appear on the label. The risk is low, but new or worsening depression should be reported promptly, and a history of depression belongs on the record before you start.
Diarrhea and nausea are third. They usually settle within the first few weeks, but severe or persistent diarrhea is not something to push through. In older adults, and in anyone on a water tablet or a blood pressure medicine, it has caused dehydration and kidney injury.
The one scheduled checkpoint is the 16-week review of skin or joints. If nothing meaningful has changed, continuing is not useful.
Approximate windows, not promises.
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 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 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.
VariableSevere inflammatory ulcers: In pyoderma gangrenosum it stops the ulcer spreading while healing catches up. Response times differ a lot.
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 doseStarting: The starter pack steps the dose up over the first week, which softens the early side effects.
Days 1 to 14Adjusting: Loose stools, nausea and headache usually start in the first week or two and settle within a month.
Weeks 2 to 4Itch: Usually the first thing to change, ahead of the plaques. Behcet's mouth ulcers settle here too, one of the faster and more reliable responses.
Weeks 4 to 8Working: The first visible change in the skin. Scale lifts before the redness fades.
Weeks 12 to 16Judge it here: In the trials roughly one in three people reached a 75 percent improvement. Scalp psoriasis responds better than thick body plaques, a common reason to choose it.
Weeks 16 to 24Psoriatic arthritis: Joint pain, swelling and tenderness improve.
Months 3 and onwardWeight and mood: Weight loss comes on gradually, so weigh yourself regularly rather than going by how clothes feel. Mood changes are uncommon but worth watching.
Months 6 and beyondNails: The slowest of all, because a nail has to grow out before improvement shows.
Sorted by what to do about them.
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.
Apremilast is expensive, priced far closer to the biologics than to older oral drugs such as methotrexate or acitretin.
So insurers commonly ask that cheaper options be tried first, and prior authorization is usual. The manufacturer runs a copay assistance program, which typically helps people with commercial insurance and is not available on government plans.
What it saves is indirect: no injection supplies, no screening tests, no repeated laboratory work. That does not close the gap with a generic tablet, but it is part of the comparison.
Faster than anything else for these conditions. Itch improves within days, clearing by four to six weeks.
Most courses run months. Guidelines cap continuous use at about one year, because kidney effects build and some can be permanent.
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.
No. Grapefruit, pomelo and Seville oranges block the enzyme that clears it, so levels rise unpredictably. Other citrus is fine.
Both are dose-related. Not dangerous, usually better if the dose comes down, and gone after stopping.
Usually, within weeks to a few months, unless another treatment is running. Planning that before the taper is the point of the short course.
Correct. No monitoring schedule, no tuberculosis screen, no repeated bloodwork. Kidney function is checked once before starting, because severe impairment halves the dose.
For most people it is worst in the first two weeks and settles within a month, which is what the five-day starter pack softens. Diarrhea that is severe or lasts past a month is a reason to be reviewed.
Some people do, and some of them lose five to ten percent of their body weight. It happens gradually, so weigh yourself every few weeks rather than judging by how clothes fit.
Less effective for thick plaques — about one in three reached a seventy-five percent improvement at 16 weeks, where biologics reach much higher figures. What it offers is a tablet, no needles, no screening, no monitoring.
Low mood and depression are uncommon but on the label, and rare reports of suicidal thoughts exist. Report any new or worsening low mood promptly.
About 16 weeks for the skin, up to 24 weeks for joints. If nothing meaningful has changed, continuing is not worthwhile.