Accutane (isotretinoin) is the most effective acne treatment available, but it carries a list of potential side effects longer and more serious than almost any other medication prescribed for a skin condition. It can cause severe birth defects, may affect your liver and blood lipids, dries out nearly every mucous membrane in your body, and comes with an FDA alert about depression and suicidal thoughts. Whether those risks are “bad” enough to avoid depends on your situation, but understanding each one in detail is the point of this article.
How Isotretinoin Works on Your Body
Isotretinoin doesn’t just treat acne at the surface. It shrinks the oil-producing glands in your skin by up to 90%, and it does this through several independent mechanisms: it slows the growth of those gland cells, disrupts how they mature, and suppresses the production of oil itself. After about eight weeks of treatment, the drug has already altered the activity of dozens of genes involved in fat and cholesterol production within the skin.
This is why isotretinoin works so well, but it’s also why the side effects reach so far beyond your face. The drug affects oil and fat metabolism throughout the body, which is what drives many of the problems described below.
Birth Defects Are the Biggest Risk
Isotretinoin causes birth defects in up to 35% or more of infants exposed during pregnancy. That number is extraordinarily high. The defects are severe: small or absent ears, hearing and vision problems, heart defects, fluid buildup around the brain, an abnormally small jaw or head, cleft palate, and missing or underdeveloped thymus glands. Many pregnancies exposed to isotretinoin also end in miscarriage.
Because of this, isotretinoin is only available in the United States through a restricted program called iPLEDGE, managed by the FDA. Patients who can become pregnant must take pregnancy tests before starting treatment and at regular intervals throughout. If you don’t pick up your prescription within a seven-day window, you need a repeat pregnancy test before getting a refill. Two forms of contraception are required during treatment and for a period after stopping. The entire system exists because the birth defect risk is that serious and that well-documented.
Depression, Mood Changes, and Suicidal Thoughts
The FDA issued a safety alert noting that depression, suicidal thoughts, and suicide attempts have been reported in patients taking isotretinoin. The agency’s guidance calls for close monitoring of mood changes including sadness, irritability, anger, loss of interest in activities, sleep disturbances, appetite changes, difficulty concentrating, and acting on dangerous impulses. Psychosis and aggression have also been reported.
The connection between isotretinoin and psychiatric symptoms remains one of the more debated areas in dermatology. Some researchers point out that severe acne itself causes depression and that clearing the skin sometimes improves mental health. But the FDA warning exists because the reports are frequent enough and serious enough that they can’t be dismissed. In a small case series published in the Journal of Drugs in Dermatology, psychiatric symptoms were the most commonly reported long-term complaint, and two individuals in that series were admitted to psychiatric facilities after stopping the drug early.
Dry Eyes and Meibomian Gland Damage
Almost everyone on isotretinoin experiences dryness of the lips, skin, and eyes. But the eye effects deserve special attention because they can outlast the treatment. Isotretinoin damages the meibomian glands, the tiny oil glands along your eyelids that keep your tear film stable. During treatment, patients show significant increases in gland loss and a measurable drop in the quality of the oil those glands produce.
The encouraging part is that some recovery happens after stopping the drug. Gland loss decreases and oil quality improves in the months following treatment. The concerning part is that neither measure fully returns to where it started. Gland loss after treatment still exceeds the pre-treatment level, and oil quality remains slightly worse. Researchers describe meibomian gland dysfunction as “reversible up to a point,” meaning some degree of permanent change is possible, particularly for people who already had marginal eye health or who take multiple courses.
Liver Stress and Blood Lipid Changes
Isotretinoin can raise triglycerides, LDL cholesterol, and total cholesterol, and it can elevate liver enzymes. This is why blood work is required during treatment. European guidelines recommend checking lipids and liver enzymes before starting, after one month, and then every three months. A recent expert consensus suggested that healthy young patients can get by with fewer draws: baseline and then again at peak dosage.
The good news is that serious liver enzyme elevations are uncommon. Fewer than 2% of patients in one large analysis experienced clinically significant spikes. The most common abnormality is elevated LDL cholesterol. These changes typically resolve after stopping the medication, but they need to be caught early, which is why skipping blood work during treatment is a genuinely bad idea.
Bone and Growth Plate Concerns in Teens
Because isotretinoin is most often prescribed during adolescence, its potential effects on growing bones matter. There are documented cases of premature closure of growth plates, particularly in the knee area (the upper shinbone and lower thighbone). This could theoretically limit a teenager’s final adult height.
The reported cases tend to involve higher doses taken over longer periods, and a clear cause-and-effect relationship hasn’t been established in the research. But the cases exist at standard acne-treatment doses too, not only at the much higher doses used for cancer treatment. This is a risk that’s worth discussing with a prescriber, especially for younger teens who haven’t finished growing.
Inflammatory Bowel Disease: A Fear That Hasn’t Held Up
For years, one of the most commonly cited reasons to avoid Accutane was a supposed link to Crohn’s disease and ulcerative colitis. Lawsuits were filed, and the concern spread widely online. But the largest studies have not supported this connection. A retrospective analysis comparing over 61,000 matched patients found that isotretinoin use was not associated with an increased risk of inflammatory bowel disease or ulcerative colitis. Isotretinoin users actually had a slightly lower rate of Crohn’s disease than non-users. This doesn’t mean individual patients can’t develop gut problems, but the population-level data doesn’t show isotretinoin as a cause.
Symptoms That Linger After Stopping
Most side effects of isotretinoin resolve within weeks to months of stopping, which makes pharmacological sense since the drug clears the body in about a day. But a subset of patients report symptoms that persist much longer. In a case series interviewing patients who stopped isotretinoin due to side effects, every participant reported that the symptoms prompting them to quit persisted after stopping. More strikingly, every participant also reported at least one new symptom that began only after discontinuation, including joint pain, irritable bowel syndrome, and visual disturbances.
The most commonly reported lingering issues were psychiatric symptoms (depression and anxiety, reported by all seven participants), followed by skin and hair dryness, gastrointestinal complaints, dry eyes and visual problems, brain fog and fatigue, joint pain, and sexual dysfunction. The researchers themselves acknowledged that it’s uncertain how symptoms appearing years later could be attributed to a drug with such a short half-life. This remains an area where patient reports and pharmacological theory don’t fully align, and the case series was small. But the pattern of complaints is consistent enough that it’s worth knowing about before starting treatment.
What Makes the Risk Calculus Difficult
Isotretinoin is not “bad” in the way that an ineffective or unnecessary drug might be. It works better than anything else for severe, scarring, treatment-resistant acne, a condition that itself carries real psychological and physical consequences. The issue is that it demands a level of commitment and monitoring that few other medications require: monthly blood draws, pregnancy prevention programs, close attention to mood, and acceptance of months of significant physical discomfort from dryness. For people with mild or moderate acne that responds to other treatments, the risk-benefit ratio tilts away from isotretinoin. For people whose acne has resisted everything else and is leaving scars, the same risks may be entirely worth taking.