Otezla vs Tazarotene

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. Tazarotene: A strong prescription retinoid for acne, psoriasis and sun damage. It does more than the gentler retinoids and irritates more, and it must not be used in pregnancy.

Reviewed by Dr. Schwarz, Board-Certified Dermatologist
An amber pill bottle labeled Otezla tipped over with white tablets spilling outTazarotene — Header Image

Which one is right for you?

Choose Otezla if…

Choose for moderate psoriasis or psoriatic arthritis when you want a pill with no routine blood tests, accepting it's gentler than injections.

  • Moderate psoriasis or scalp psoriasis
  • You'd rather avoid injections
  • No routine blood tests appeals

Choose Tazarotene if…

Choose for acne or psoriasis that needs a stronger retinoid than tretinoin or adapalene, and you can tolerate more irritation.

  • Gentler retinoids haven't been enough
  • Oily, tolerant skin
  • Pregnancy is not possible
Fine together

Can you take them together?

Tazarotene can be used on stubborn plaques while taking Otezla. They do not interact.

At a glance

● Otezla
● Tazarotene
Type
Oral PDE4 inhibitor (apremilast)
Strong topical retinoid
What it does
Turns down several inflammation signals
Unclogs pores and slows skin-cell overgrowth
Best for
Moderate plaque psoriasis and psoriatic arthritis
Acne, psoriasis and sun damage
Prescription
Yes
Yes
Form
Tablet
Cream, gel, foam or lotion
How often
Twice daily after a 5-day start
Once nightly
Course length
Ongoing
Ongoing
Time to results
12–16 weeks
8–12 weeks
Main side effect
Diarrhea and nausea early on
Dryness, redness and peeling
Blood tests
None
None
Pregnancy
Check with your clinician
Never
Cost
High; generic arriving
High; often needs prior authorization

What it treats

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

Evidence level
Otezla
Tazarotene
Strong evidenceMost established uses
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

Improves moderate plaque psoriasis.
Psoriatic Arthritis on light skin.

Psoriatic Arthritis

Eases joint pain and swelling.
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

Thins plaques, often with a steroid.
Inflamed acne on light skin. The spots sit in a patch of pink, and the ring of redness around each one is easy to see. A few have a yellow-white head, and the skin between them is dry and flaking.

Acne

Clears breakouts.
Moderate evidenceSome supportive research
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

Approved for scalp involvement.
A relaxed forehead with faint shallow horizontal fine lines.

Wrinkles and Fine Lines

Improves sun-damaged skin.
Little evidence
Extreme close-up of light skin in an active eczema flare, too close to tell which part of the body it is. Blotchy pink-red inflammation covers the whole frame with no clear edge, with small raised bumps, fine dry scale and a few fresh scratch marks.

Eczema

Trials in eczema were disappointing.
—
Not effective
A round smooth bald patch on the scalp.

Alopecia Areata

Not effective in trials.
—
Can make it worse
—
Extreme close-up of light skin in an active eczema flare, too close to tell which part of the body it is. Blotchy pink-red inflammation covers the whole frame with no clear edge, with small raised bumps, fine dry scale and a few fresh scratch marks.

Eczema

Dries inflamed skin.
Redness and fine superficial vessels across a light-skinned cheek and nose.

Rosacea

Very irritating to sensitive skin.
How it works

Otezla

Otezla. Apremilast turns down inflammation inside skin. 1. Blocks PDE4: Inhibits an enzyme that breaks down cAMP. 2. Raises cAMP inside cells: Preserves a signal involved in regulating inflammation. 3. Helps inflamed skin settle: Psoriasis plaques become less inflamed.
Open full-size diagram
Diagram explanation and sources

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.

Source 1

Tazarotene

Tazarotene. Changes skin-cell signals to treat acne and excess buildup. 1. Activates retinoid receptors: Skin converts it to an active form that changes gene signals. 2. Helps unclog pores: Normalizes cell buildup inside follicles. 3. Reduces excess skin growth: Helps psoriasis cells grow and mature more normally. 4. Improves sun-damaged skin: Can improve fine wrinkles and uneven pigmentation.
Open full-size diagram
Diagram explanation and sources

Activates retinoid receptors: Skin converts it to an active form that changes gene signals. Helps unclog pores: Normalizes cell buildup inside follicles. Reduces excess skin growth: Helps psoriasis cells grow and mature more normally. Improves sun-damaged skin: Can improve fine wrinkles and uneven pigmentation.

Tazarotene is converted to tazarotenic acid, which preferentially activates RAR-beta/gamma. Full clinical mechanisms are not defined. Acne, psoriasis and photodamage evidence comes from different formulations/strengths; clinical benefits are not guaranteed.

Source 1 · Source 2 · Source 3

How you take it

Treatment plan

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.

When to Apply: At night only, on completely dry skin — about twenty minutes after washing, because damp skin absorbs more and stings more. A pea-sized amount covers the whole face. Moisturizer underneath, on top, or both. Sunscreen every morning is part of the treatment.

How to Start: Two or three nights a week for the first two to four weeks, then build toward nightly as the skin allows. Most people who quit started nightly. For thick psoriasis plaques some doctors use short contact — applied, then washed off after twenty to thirty minutes — but only if you were told to.

If It Irritates: Moisturizer before and after, drop back a night or two a week, and take two or three nights off if the skin is raw. Do not scale up other actives at the same time. Cold, wind and hot showers make it worse.

If It’s Not Working: Give it a full twelve weeks. If acne is still active, step up the strength, change to the gel, or add benzoyl peroxide or an oral option. Check first that you are treating the whole area, not dabbing spots.

When to take it

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.

Not covered in this guide yet
If you miss a dose

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.

Not covered in this guide yet
Monitoring

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.

No blood tests are needed. Two things get monitored: how the skin is tolerating it, and pregnancy status.

Because tazarotene is contraindicated in pregnancy, anyone who could become pregnant should expect a conversation about reliable contraception before starting, and in some settings a pregnancy test. Very little reaches the bloodstream, but the restriction is absolute.

The other checkpoint is a review at around twelve weeks: hold the strength, step up, or add something. People stay on this for years, and nothing accumulates that needs testing.

When you’ll see results

Approximate windows, not promises.

● Otezla
● Tazarotene
First dose

First doseStarting: The starter pack steps the dose up over the first week, which softens the early side effects.

Days 1 to 14

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 4

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 8

Weeks 4 to 8Working: The first visible change in the skin. Scale lifts before the redness fades.

Weeks 4 to 8Adapting: Peeling settles and new spots get less frequent. Most quit before reaching this.

Weeks 12 to 16

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 24

Weeks 16 to 24Psoriatic arthritis: Joint pain, swelling and tenderness improve.

Months 3 and onward

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 beyond

Months 6 and beyondNails: The slowest of all, because a nail has to grow out before improvement shows.

First few minutes

First few minutesApplying it: A pea-sized amount on dry skin at night. Mild stinging is normal.

Weeks 1 to 4

Weeks 1 to 4The adjustment: Dryness, flaking around the nose and mouth, mild redness, peaking in weeks two to three. Acne can look worse first as forming clogs surface.

Weeks 8 to 12

Weeks 8 to 12Judge it here for acne: Fewer new spots, fewer blackheads and whiteheads. Trials measured here, and it keeps building. Psoriasis plaques thin on the same timeline and often stay thinner after stopping.

4 to 6 months

4 to 6 monthsTexture and fine lines: Gradual smoothing. A months-to-years treatment, not a course.

6 months or more

6 months or moreMottled pigment and dark marks: The slowest of all. Sunscreen does as much work as the retinoid.

Throughout

ThroughoutSun and flushing: Skin burns more easily, so daily sunscreen is not optional. Stinging, and a flush after alcohol or hot drinks, settle.

Side effects

Sorted by what to do about them.

Otezla

Tazarotene

Common
Common
  • Diarrhea and nausea in the first weeks
  • Headache
  • Weight loss
Common
  • Dryness, redness and peeling
  • Burning or stinging
  • Burning more easily in the sun
Tell your doctor
Tell your doctor
  • Ongoing weight loss
Tell your doctor
  • Irritation that doesn't settle with less frequent use
Stop and get care
Stop and get care
  • Low mood or thoughts of self-harm
  • Severe diarrhea or vomiting
Stop and get care
  • Blistering or swelling

Safety and who should avoid it

Pregnancy
Ask first
Discuss with your clinician.
Never
A negative pregnancy test and contraception are expected.
Breastfeeding
Ask first
Discuss with your clinician.
Avoid
Not recommended.
Children
6 and older
Approved from 6 for psoriasis.
12 and older
Approved from 12.
Monitoring
None
Weight checks.
None
Review at 12 weeks.
Key interactions
Check
Rifampin and some anti-seizure drugs reduce it.
Check
Other retinoids, strong acids, waxing.
Other cautions
Discuss
History of depression; kidney problems.
Avoid
Eczema, rosacea, sunburnt or broken skin.

Cost and getting it

Getting it and cost

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.

This is the honest weak point. The lotion and the foam are brand-only and expensive, coverage is inconsistent, and prior authorization is common — plans usually want a cheaper retinoid tried first.

Generic cream and gel cost considerably less, though still more than tretinoin. Adapalene is sold without a prescription in many places and is the least expensive retinoid. If cost is the barrier, ask about generic cream or gel at 0.05%.

When you stop

Comes back?
Psoriasis usually returns over weeks to months.
Acne and psoriasis return gradually.
Taper needed?
No.
No.
After the last dose
Stomach effects resolve quickly.
Many switch to a gentler retinoid for maintenance.

Common questions

Otezla:Do I really need no blood tests?

Correct. No monitoring schedule, no tuberculosis screen, no repeated bloodwork. Kidney function is checked once before starting, because severe impairment halves the dose.

Otezla:Will the diarrhea stop?

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.

Otezla:Will I lose weight?

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.

Otezla:How does it compare with the injections?

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.

Otezla:Can it affect my mood?

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.

Otezla:How long until I know whether it is working?

About 16 weeks for the skin, up to 24 weeks for joints. If nothing meaningful has changed, continuing is not worthwhile.

Tazarotene:How long before I see anything?

Little for the first month, real change between weeks eight and twelve. Texture and pigment take longer.

Tazarotene:Why is my acne worse in the first few weeks?

Clogs already forming are being pushed to the surface sooner. It settles by weeks six to eight.

Tazarotene:Can I use it if I am pregnant or trying?

No. Tazarotene is contraindicated in pregnancy and should be stopped before trying to conceive. Ask your doctor what to use instead.

Tazarotene:Is it stronger than tretinoin?

Generally yes, and more irritating for the same reason. Whether it works better depends on whether you can use it consistently.

Tazarotene:Do I need to stop before waxing or a facial?

Yes — about a week beforehand, and tell whoever is treating you that you use a prescription retinoid.

Tazarotene:Can I use it with benzoyl peroxide?

Yes. Unlike tretinoin, it is not broken down by benzoyl peroxide. The pair can be drying, so use one in the morning and one at night.

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