How Long Should You Take Isotretinoin for Acne?
If you suffer from severe acne that hasn’t responded to creams, antibiotics, or lifestyle changes, you may have been prescribed Isotretinoin—a powerful medication often reserved for stubborn or cystic acne.
If you suffer from severe acne that hasnt responded to creams, antibiotics, or lifestyle changes, you may have been prescribed Isotretinoina powerful medication often reserved for stubborn or cystic acne. Known by brand names like Accutane, Isotroin, or Claravis, Isotretinoin 20mgis avitamin A derivative that targets acne at its root.
One of the most common questions among new users is:
How long should I take Isotretinoin for acne?
The answer varies based on your weight, severity of acne, dosage, and how your skin responds to the medication.
In this article, well explore the average duration of treatment, factors that influence it, and what you can expect during your Isotretinoin journey.
? What Is Isotretinoin?
Isotretinoin is an oral retinoid used primarily to treat severe, nodular, or cystic acne. It works by:
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Shrinking the oil (sebaceous) glands in the skin
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Reducing the production of sebum (oil)
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Preventing clogged pores
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Reducing inflammation and bacterial growth
Because of its strong action and potential side effects, it is typically used only after other treatments (like antibiotics or topical retinoids) have failed. You can also buy accutane online from dosepharmacy
? General Duration of Isotretinoin Treatment
? Typical Course Length: 4 to 6 Months
For most patients, a single course of Isotretinoin lasts between 16 to 24 weeks (about 4 to 6 months). This duration is sufficient for the drug to achieve its cumulative effects and clear most cases of severe acne.
However, some patients may need shorter or longer courses, depending on:
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Their body weight
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The severity of acne
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The daily dose prescribed
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How well their skin responds
? How Dosage Affects Duration
Isotretinoin treatment is typically personalized based on your weight in kilograms (kg). Doctors often aim for a cumulative dose of 120 to 150 mg per kg over the entire course. This means that:
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Higher daily doses lead to shorter courses
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Lower daily doses may require longer treatment
Example:
If you weigh 60 kg and your doctor targets 120 mg/kg, youll need a total cumulative dose of 7,200 mg.
If youre taking 40 mg/day, it would take you about 180 days (6 months) to reach the full dose.
If youre on 20 mg/day, it could take about 12 months.
? Low-Dose Isotretinoin: A Slower Approach
Some dermatologists opt for low-dose isotretinoin therapy (1020 mg/day) for patients who are more prone to side effects or have less severe acne. While this approach is gentler, it often requires:
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A longer treatment duration (up to 912 months)
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More gradual results
However, it may also come with fewer side effects, like dry lips, joint pain, or mood changes.
? Monitoring and Adjusting During Treatment
Your dermatologist will regularly monitor your:
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Liver function
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Cholesterol levels
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Triglycerides
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Mental health
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Side effects
Based on these checkups, your dose or treatment duration may be adjusted to avoid complications. If you tolerate the drug well and acne is improving steadily, your doctor may increase the dose or reduce the length of treatment.
? Can You Stop Isotretinoin Early?
Its not recommended to stop Isotretinoin early, even if your acne clears up within a few weeks or months. Ending the course before reaching the full cumulative dose can increase your risk of acne relapse.
In fact, early discontinuation often results in:
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Temporary improvement followed by return of acne
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Need for a second or third course of treatment
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Reduced long-term effectiveness
? When a Second Course Is Needed
Around 1020% of people may require a second round of Isotretinoin if acne recurs after stopping. A second course is usually started 6 to 12 months after completing the first one, giving the skin time to stabilize.
Some reasons for needing a second course include:
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Not reaching the full cumulative dose in the first round
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Severe hormonal acne
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Underlying medical conditions like PCOS
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Poor adherence to treatment
? What Happens After You Finish Isotretinoin?
Once the course is completed, most people experience long-term or even permanent remission from severe acne. In some cases:
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Mild breakouts may still occur but are easier to manage
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Topical treatments like retinoids or benzoyl peroxide may be used for maintenance
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Regular skincare and sunscreen remain essential
? Tips to Stay Consistent with Treatment
To ensure you complete your Isotretinoin course successfully:
? Follow your dermatologists plan strictly
? Take the pill with a fatty meal (it increases absorption)
? Track your dosage and progress
? Keep up with lab tests and check-ins
? Report side effects early
? Common Side Effects During Treatment
Although highly effective, Isotretinoin can come with side effects that may affect how long you can tolerate the medication:
Mild to Moderate Side Effects:
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Dry lips and skin
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Nosebleeds
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Joint or muscle aches
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Sun sensitivity
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Mild mood changes
Severe or Rare Side Effects:
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Depression or suicidal thoughts
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Liver damage
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Increased cholesterol or triglycerides
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Vision issues
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Birth defects (if taken during pregnancy)
Women of childbearing age must follow strict pregnancy prevention programs, including monthly pregnancy tests and using two forms of birth control.
? Final Thoughts: How Long Is Enough?
For most people, a single course of 4 to 6 months of Isotretinoin is sufficient to achieve clear or nearly clear skin. The total treatment time is based on reaching the correct cumulative dose, and can vary between 16 to 40 weeks depending on your weight and dose.
Completing the full course and working closely with your doctor ensures the best chance of long-term success and minimal recurrence. If acne does return, a second round of treatment or a maintenance regimen may be necessary.
? Key Takeaways:
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Typical duration: 46 months
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Goal: Reach 120150 mg/kg cumulative dose
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Dosage affects how long it takes
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Dont stop earlyeven if skin improves
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Stay consistent, monitor side effects, and follow up with your doctor