Accutane (isotretinoin): uses, risks and results

Accutane is the name most people know for isotretinoin, a prescription pill for severe acne. The AAD says dermatologists often call it the most effective treatment for severe acne. Its sale is tightly controlled, because it causes severe birth defects and carries other serious warnings. This guide explains what isotretinoin is, how it works, who it is for, what the rules are, what the risks and results look like, and how people get it. Every statement comes from the FDA label, the FDA's iPLEDGE pages, MedlinePlus, the American Academy of Dermatology (AAD), the NHS, the UK NICE guideline or published research.

Skinli gives general education, prescribes nothing and is not a doctor. Isotretinoin is prescribed and monitored by a doctor, such as a dermatologist, who sees you every month during treatment. If your acne is deep, painful or leaving scars, the first step is seeing a dermatologist for severe acne.

What isotretinoin is

Isotretinoin is a retinoid, a drug related to vitamin A. The FDA label describes it chemically as 13-cis-retinoic acid, related to both retinoic acid and retinol, which is vitamin A. It comes as capsules taken by mouth. The label gives 1982 as the year of the first US approval.

Accutane was the original brand. The AAD said in 2025 that the Accutane brand is no longer available in the US and that many people still call isotretinoin Accutane. DailyMed, the National Library of Medicine's database of drug labels, lists a label published in 2026 under the Accutane name, along with labels for several other brand and generic isotretinoin capsules. Whatever the name on the box, the drug is isotretinoin, and all of it is sold under the same FDA program.

Isotretinoin taken by mouth is a different medicine from the retinoid creams and gels applied to the skin. The prescription retinoids guide covers those, and adapalene vs tretinoin compares two of them.

How it works

The FDA label says the exact mechanism is unknown. What it does describe is this: isotretinoin reduces the output of the skin's oil glands and affects keratinization, the process by which skin cells build up inside pores. The drop in oil reflects a reduction in the size of the oil glands and is temporary. The label says the effect depends on the dose and on how long the drug is taken.

The AAD puts it in terms of the causes of acne. It says isotretinoin is the only acne treatment that works on all four: extra oil, clogged pores, acne bacteria and inflammation. That is why it can clear acne that other treatments cannot.

Who it is for

The FDA label approves isotretinoin for severe recalcitrant nodular acne, which means severe acne with many deep, inflamed lumps (nodules) 5 mm across or larger that has not responded to standard treatment. It says the drug is reserved for patients who have not responded to conventional therapy, including antibiotic pills, because of the side effects linked to its use. It is approved for people 12 and older who are not pregnant.

Guidelines describe the same group in wider terms:

• The 2024 AAD acne guideline strongly recommends isotretinoin for acne that is severe, that causes emotional burden or scarring, or that fails standard treatment by mouth or on the skin.
• The UK NICE guideline says to consider it for people older than 12 with severe acne that has not responded to adequate courses of antibiotic pills and treatment on the skin. Its examples include nodulo-cystic acne and acne at risk of permanent scarring.
• The AAD says that if an antibiotic pill with a skin treatment fails to clear severe acne, the dermatologist may talk with you about isotretinoin.

Some prescribers use lower doses for acne that is less severe. The label does not approve that use, and the evidence is mixed; the low dose Accutane guide reports what the studies found. Severe, deep acne is covered in more detail in the cystic acne guide.

Who must not take it

The label lists two absolute reasons not to take isotretinoin: pregnancy, and allergy to isotretinoin, vitamin A or any ingredient in the capsules. It also says breastfeeding is not recommended during treatment and for at least 8 days after the last dose.

It asks for extra care, and a full conversation with the prescriber, for people with a personal or family history of mental health problems, and for people with bone disorders, anorexia nervosa, diabetes, obesity, high triglycerides, liver disease, or heavy alcohol use. The NHS adds that isotretinoin may not be suitable for people with a soya or peanut allergy. The Medication Guide lists asthma, heart disease and bowel problems among the conditions to mention.

How you get it

In the US, isotretinoin is available only through iPLEDGE, which the FDA describes as a shared safety program that covers every isotretinoin product. The steps are:

1. A prescriber certified in iPLEDGE, such as a dermatologist, decides whether isotretinoin fits your acne.
2. Blood tests for blood fats and liver function come first, and patients who can get pregnant have two pregnancy tests in a medical setting.
3. You enroll in iPLEDGE, and so does every other patient, whatever their sex.
4. Each month, you see the prescriber, in person or by telemedicine, and get a prescription for no more than 30 days, with no refills.
5. A pharmacy certified in iPLEDGE fills each prescription after getting an authorization.

The FDA approved changes to iPLEDGE on February 9, 2026, including optional home pregnancy tests during and after treatment, and it has set November 15, 2026 as their start date. The AAD warns that buying isotretinoin from a website that does not require a prescription puts your health at serious risk. The how to get Accutane guide covers every step and the insurance questions to ask.

Pregnancy

The FDA label's boxed warning says isotretinoin can cause life-threatening birth defects, that the risk applies to any amount taken during pregnancy, even for short periods, and that potentially any exposed fetus can be affected. It lists defects of the face, eyes, ears, skull, brain, heart and certain glands, as well as miscarriage and premature birth.

For anyone who can get pregnant, the label requires:

• Two negative pregnancy tests before the first prescription, at least 30 days apart.
• Two forms of birth control used together, at least one of them a primary form, from 1 month before treatment to 1 month after, unless the patient commits to no sexual contact that could cause pregnancy.
• A negative pregnancy test within 7 days before every monthly prescription, at the end of treatment and 1 month later.

No patient may donate blood during treatment or for 1 month after, because the blood could reach a pregnant person. If pregnancy happens, the drug is stopped at once. The Accutane and pregnancy guide sets out every rule and the evidence behind it.

Dose and course length

The FDA label gives the standard dose as 0.5 to 1 mg per kilogram of body weight a day, in two doses, for 15 to 20 weeks, and allows higher doses for some adults. The AAD describes a course as four to five months. The NICE guideline also measures a course by the total amount taken, 120 to 150 mg per kilogram. The label says long-term use, even at low doses, has not been studied and is not recommended.

These figures are for understanding. The dose is set by your prescriber and adjusted during treatment for your response and side effects. The how long Accutane takes to work guide explains the timeline.

Results

In the 20-week trial described on one current label, 925 patients with severe nodular acne started with 17.7 to 18.4 nodules on average. The average count fell by more than 15, and 70 to 75 percent of patients saw a drop of 90 percent or more. The label says a single course has resulted in complete and prolonged remission in many patients, and the AAD estimates that 85 percent of patients see permanent clearing after one course.

Acne can come back. A 2025 JAMA Dermatology study of 19,907 US patients found 22.5 percent had a relapse and 8.2 percent took a second course, and a higher total dose over the course was linked to less relapse. A 2018 Cochrane review of 31 trials rated much of the evidence on isotretinoin as low quality and called for better studies. The before and after guide reports the results in full, and the Accutane purge guide explains why acne can get worse in the first weeks.

Side effects

The most common side effects are dryness: dry, cracked lips, dry skin, dry eyes and a dry nose that can bleed. The label's list of effects seen in 5 percent or more of patients also includes back pain, joint pain, headache and cold symptoms. The AAD says the dryness clears once treatment stops.

The label's serious warnings include depression and other mental health problems, raised pressure inside the skull, severe skin reactions, inflammation of the pancreas, high blood fats, hearing loss, liver inflammation, inflammatory bowel disease, bone and growth effects in teenagers, poor night vision and severe allergic reactions. It says most side effects in trials reversed after stopping and some persisted, such as hair loss, night vision changes and sexual problems in some people.

These guides cover the side effects in detail: Accutane side effects, Accutane lips, and Accutane hair loss and weight.

Mood and mental health

The FDA label says isotretinoin may cause depression, psychosis and, rarely, suicidal thoughts, suicide attempts, suicide, and aggressive or violent behavior. It tells prescribers to ask about mental health history before starting and to check mood at every visit, and it tells patients to stop the drug and contact their prescriber if these symptoms appear.

Research has not settled whether the drug causes these problems. A 2024 JAMA Dermatology review of 25 studies found no higher risk of psychiatric conditions overall among users, and a lower risk of suicide attempts 2 to 4 years after treatment. The AAD says severe acne itself often leads to depression. The label's instructions apply either way: watch for the warning signs and act on them. If you have thoughts of suicide or self-harm, call or text 988 in the US. The Accutane and depression guide covers the signs and the studies.

Alcohol, medicines and supplements

The NHS advises not drinking alcohol during treatment because of the liver, and the FDA label names heavier drinking as a risk factor for high triglycerides. The label says to avoid vitamin A supplements and tetracycline antibiotics, and MedlinePlus warns against St. John's wort with hormonal birth control. Tell your prescriber about every medicine and supplement you take. The Accutane and alcohol guide has the details.

Skin care during treatment

The AAD recommends a four-step plan for everyone taking isotretinoin: a gentle cleanser no more than twice a day and after sweating, an oil-free moisturizer on damp skin, sunscreen with SPF 30 or higher, broad-spectrum protection and water resistance, and lip balm or petroleum jelly for the lips. It says to avoid vitamin A supplements, retinol, benzoyl peroxide, sulfur, vitamin C skin care, exfoliating acids and scrubs, fragrances and toners. The label says to avoid long sun exposure and tanning beds.

Scars

Isotretinoin helps with scars by preventing new ones. The AAD says fewer breakouts lead to fewer acne scars. For scars that already exist, the label says to avoid waxing and skin resurfacing, such as dermabrasion and laser, during treatment and for at least 6 months after. The acne scar treatment guide and the microneedling guide explain what can be done after that.

After the course

Some rules and some results continue after the last capsule. The label says acne may keep improving after a 15 to 20-week course, which is why it advises waiting at least 2 months before any second course. The AAD says the skin often continues to clear for a while after stopping. Several timers start at the last dose:

Rule	How long after the last dose	Source
No pregnancy, and two forms of birth control continue	1 month, with a pregnancy test at the end of treatment and 1 month later	FDA label
No blood donation	1 month	FDA label
No breastfeeding	At least 8 days	FDA label, August 2026
No waxing or skin resurfacing such as laser or dermabrasion	At least 6 months	FDA label
Earliest second course, if needed	At least 2 months	FDA label

The AAD's severe acne page says that once skin is clear or nearly clear, you still need acne treatment, though the type may change, and that most people can keep acne away with proper skin care and medicine applied to the skin. Ask at your last visit what your plan should be.

Before your first appointment

The AAD's page on benefits and risks, and the label's list of conditions to mention, point to what to prepare:

• A list of every acne treatment you have tried, how long you used it, and what happened.
• A list of all medicines, vitamins, minerals and herbal supplements you take, including any vitamin A.
• Any history of depression, anxiety, psychosis, suicide attempts or self-harm, in you or your family.
• Any plan to become pregnant, and the birth control you use now.
• Conditions such as asthma, diabetes, liver disease, high cholesterol or triglycerides, bone problems, eating disorders or bowel disease.
• Photos of your skin over recent months, if you have them. How to take acne progress photos shows how to take them consistently.

Where Skinli fits

Skinli's free photo plan at /analyze is built for everyday acne: blackheads, whiteheads and ordinary breakouts that store products can treat. It is the wrong starting point for acne severe enough to need isotretinoin. For deep, painful or scarring acne, or acne that has not cleared after months of steady treatment, see a dermatologist, and bring a list of what you have tried.