There is no single "best" tablet for psoriasis — the right one depends on how severe your psoriasis is, what other health conditions you have, and how your body responds to treatment

Psoriasis tablets fall into two main categories: conventional systemic drugs that suppress the immune system broadly, and biologic drugs that target specific parts of the immune response. Conventional options include methotrexate, acitretin, and cyclosporine. Biologic tablets — a newer class — include apremilast (Otezla) and JAK inhibitors like tofacitinib (Xeljanz). Your dermatologist will recommend one based on your psoriasis type, severity, and medical history, not on which is universally "best."

The choice also depends on practical factors: how often you can get blood work done, whether you can tolerate side effects, what your insurance covers, and whether you are planning pregnancy. A tablet that works well for one person may not work for another, even with identical psoriasis. This is why your dermatologist's role is to match the drug to your specific situation, not to prescribe the most powerful option available.

Key Takeaways

  • Methotrexate is the most commonly prescribed tablet for moderate to severe psoriasis because it is inexpensive and has decades of safety data, though it requires regular blood tests.
  • Biologic tablets like apremilast work differently and may suit people who cannot tolerate conventional drugs, but they are significantly more expensive and require different monitoring.
  • JAK inhibitors are the newest tablet option and work faster than older drugs, but long-term safety data is still being gathered.
  • Any systemic psoriasis tablet carries risks — your dermatologist will weigh those risks against the burden of your disease before recommending one.

Methotrexate: the conventional starting point

Methotrexate is the tablet most dermatologists prescribe first for moderate to severe plaque psoriasis. It suppresses the overactive immune response that drives psoriasis, and it has been used for this purpose for over 40 years. The cost is low — generic methotrexate is inexpensive — and insurance typically covers it without requiring prior authorization.

The trade-off is that methotrexate requires regular blood work to monitor your liver and kidney function, because the drug can cause damage if levels build up. You will need tests before starting, then every 8 to 12 weeks while taking it. Methotrexate also cannot be used if you are pregnant or planning to become pregnant, and it interacts with several other medications. Most people see improvement within 6 to 12 weeks, though some take longer.

Common side effects include nausea, fatigue, and mouth sores. These often improve if your dermatologist adjusts the dose or timing. Serious side effects are rare but possible, which is why the blood work matters. If you tolerate methotrexate well, it can be a long-term maintenance treatment — many people stay on it for years with good control of their psoriasis.

Acitretin and cyclosporine: alternatives when methotrexate does not work

Acitretin is a vitamin A derivative that works by normalizing skin cell growth. It is particularly effective for pustular and erythrodermic psoriasis (the most severe forms) and for psoriasis of the palms and soles. Like methotrexate, it is inexpensive and has long safety data behind it. Improvement typically takes 8 to 12 weeks, similar to methotrexate.

Acitretin has a major drawback: it is highly teratogenic, meaning it causes severe birth defects. If you are a woman of childbearing age, you must use two forms of contraception and cannot become pregnant for at least three years after stopping the drug. It also causes dry skin, lips, and eyes in most people, and can raise cholesterol and liver enzymes. Blood work is still required, and your dermatologist will monitor these levels closely.

Cyclosporine is a potent immunosuppressant that works quickly — many people see results within 2 to 4 weeks. It is useful when psoriasis is severe and other drugs have failed. The downside is significant: cyclosporine increases the risk of kidney damage, high blood pressure, and infection. It also interacts with many medications and foods (notably grapefruit). Most dermatologists use it only short-term, for 3 to 6 months, because the risks accumulate with longer use. Blood pressure and kidney function must be monitored closely, often every 2 to 4 weeks.

Apremilast: a biologic tablet for mild to moderate psoriasis

Apremilast (brand name Otezla) is a biologic tablet that blocks a specific immune pathway called phosphodiesterase-4. It is less potent than methotrexate or cyclosporine, making it better suited for mild to moderate psoriasis rather than severe cases. The advantage is that it does not require blood work monitoring and has fewer drug interactions than conventional tablets.

Apremilast is taken twice daily and takes 4 to 6 weeks to show effect. The most common side effect is diarrhea, which occurs in about 20% of people and often improves over time. Nausea and headache are also common. Serious side effects are rare. Because it does not suppress the immune system as broadly as methotrexate, infection risk is lower.

The major limitation is cost: apremilast is expensive, and insurance often requires that you try methotrexate first before covering it. If you have mild to moderate psoriasis and methotrexate causes unacceptable side effects, apremilast may be an option worth discussing with your dermatologist. It is also a reasonable choice if you cannot tolerate blood work monitoring or have kidney or liver disease that makes other tablets risky.

JAK inhibitors: the newest tablet class

JAK inhibitors are a newer class of biologic tablets that block Janus kinase enzymes, which drive immune inflammation. Tofacitinib (Xeljanz) is currently the only JAK inhibitor tablet approved for psoriasis, though others are in trials. JAK inhibitors work faster than older drugs — many people see improvement within 2 to 4 weeks — and they do not require the same intensive blood work as methotrexate.

The catch is that JAK inhibitors are very new for psoriasis. While they have been used for rheumatoid arthritis for over a decade, long-term safety data specific to psoriasis is still being gathered. The FDA has flagged concerns about blood clots and heart events in some patients, particularly those over 50 or with other risk factors. JAK inhibitors also increase infection risk and can raise cholesterol. Your dermatologist will discuss whether these risks are acceptable for your situation.

Cost is high, similar to apremilast, and insurance coverage varies. Some insurance plans cover JAK inhibitors as a first-line option, while others require you to fail methotrexate first. If you are a candidate for a JAK inhibitor, your dermatologist will discuss the known risks and benefits based on your age and health history.

How your dermatologist chooses a tablet

Your dermatologist will consider several factors before recommending a specific tablet. The severity of your psoriasis matters most: mild cases may respond to topical creams alone, moderate cases often start with methotrexate, and severe cases may need cyclosporine or a biologic. Your age, kidney and liver function, and other medical conditions all affect which drugs are safe for you.

Pregnancy status or plans to become pregnant rule out methotrexate and acitretin when ready. A history of infection, cancer, or heart disease may rule out immunosuppressants altogether. If you take other medications, drug interactions matter — some tablets cannot be combined safely. Your dermatologist will ask about all medications, supplements, and herbal products you take.

Your dermatologist will also discuss your tolerance for monitoring. Methotrexate and cyclosporine require regular blood tests; apremilast and JAK inhibitors require fewer tests but more frequent office visits to assess response. Cost and insurance coverage are practical factors too, though they should not be the only ones. If a tablet is theoretically perfect but your insurance will not cover it, your dermatologist can work with you to find an alternative or help you appeal the insurance decision.

What to expect during treatment

Most psoriasis tablets take 4 to 12 weeks to show full effect. Your dermatologist will schedule a follow-up visit 4 to 6 weeks after starting to assess how well it is working and whether side effects are manageable. If the drug is not working well enough or side effects are intolerable, your dermatologist may adjust the dose, switch to a different tablet, or combine tablets.

Once your psoriasis clears or improves significantly, you will stay on the tablet to maintain that improvement. Stopping suddenly often causes psoriasis to return within weeks. If you want to stop a tablet, discuss it with your dermatologist first — they may taper the dose gradually or switch you to a gentler option.

Regular monitoring continues throughout treatment. Blood work frequency depends on which tablet you take, but it is not optional — it catches problems early when they are easiest to manage. You will also need periodic office visits to check your skin, discuss any new symptoms, and adjust treatment if needed.

Frequently Asked Questions

Can I take a psoriasis tablet if I have other health conditions?

It depends on the condition and the tablet. Kidney or liver disease may rule out methotrexate and cyclosporine. Heart disease or a history of blood clots may rule out JAK inhibitors. A history of cancer requires careful consideration with your dermatologist and possibly an oncologist. Always tell your dermatologist about every health condition you have, including past infections and surgeries.

How long does it take to know if a tablet is working?

Most tablets take 4 to 12 weeks to show full effect. Cyclosporine and JAK inhibitors work faster (2 to 4 weeks), while methotrexate and acitretin are slower (8 to 12 weeks). Your dermatologist will schedule a follow-up visit around week 6 to check progress and decide whether to continue, adjust the dose, or try something else.

What happens if a tablet stops working?

Psoriasis can develop resistance to a tablet over time, or a drug that worked well initially may become less effective. Your dermatologist can increase the dose, switch to a different tablet, or combine two tablets. Do not stop taking the tablet on your own — stopping suddenly often causes psoriasis to flare.

Are psoriasis tablets safe to take long-term?

Methotrexate and acitretin have decades of long-term safety data. Cyclosporine is usually used short-term because risks increase with prolonged use. Apremilast and JAK inhibitors are newer, so long-term data is still being gathered. Your dermatologist will weigh the risks of the tablet against the burden of untreated psoriasis and monitor you closely throughout treatment.

Can I drink alcohol while taking a psoriasis tablet?

Alcohol can increase the risk of liver damage with methotrexate and acitretin, so most dermatologists recommend limiting or avoiding it. Alcohol may also worsen psoriasis itself. Ask your dermatologist about alcohol use with whichever tablet you are prescribed — the rules vary by drug.