Isotretinoin in Malaysia: Uses, Safety, Side Effects and Pregnancy Rules

Quick answer: Isotretinoin is a strong oral vitamin A–derived medicine used for severe, nodular or scarring acne that has not responded to other treatment. It is prescription-only and needs regular medical supervision. It causes serious birth defects, so it must never be taken during pregnancy, and women who could become pregnant must follow a strict pregnancy prevention programme. Dryness is the most common side effect. Never buy it online or take it without a prescription.

This article is for general education. It does not replace advice from your own doctor or dermatologist.

When Isotretinoin Is Used

Isotretinoin is mainly used for severe forms of acne, such as nodular or conglobate acne, and for acne at risk of scarring that has not responded to other treatments, including antibiotics and topical therapy. Doctors may also consider it for acne that keeps returning or that causes significant distress. It is not used for acne before puberty or in children under 12.

Not every case of acne needs it. Mild and moderate acne usually responds to creams, peels and other options. See our acne treatment page for the full range, and read about cystic acne and hormonal acne, two types that sometimes need stronger treatment.

How Isotretinoin Works

Isotretinoin acts on several causes of acne at once. It shrinks the oil glands so they make much less sebum, changes how skin cells shed so pores clog less easily, and reduces acne bacteria and inflammation. Because it treats the underlying causes rather than only the surface, it can give long-lasting clearing, but it also affects the whole body, which is why it causes widespread side effects and needs monitoring.

Dosing, Duration and Taking It Safely

Your dermatologist chooses the dose based on your weight, the severity of your acne, your response and any side effects. Many current approaches use lower doses than in the past. The medicine is usually taken once or twice a day with a meal, which helps the body absorb it. Courses commonly last several months, often around four to six months, but this varies. Follow your prescriber’s instructions exactly:

• Do not change the dose or stop early without advice.
• Do not share your medicine with anyone.
• Keep follow-up appointments, even if your skin looks better.

Acne may seem to flare in the first few weeks. This is common and is discussed in skin purging: causes, symptoms and what to do. Tell your doctor if it is severe.

Side Effects to Know About

Side effects are common, and most are manageable. Many settle after the course ends. The most common are:

• Dry, cracked lips (almost universal), dry skin, dry eyes and dry nose, sometimes with nosebleeds
• Sensitivity to sun and a higher risk of sunburn
• Muscle or joint aches, headaches and tiredness
• Temporary hair thinning and brittle nails
• Changes in blood fats (cholesterol and triglycerides) and liver enzymes, which is why blood tests are used
• Reduced night vision (less common)

Mood changes: Isotretinoin has been linked in reports with low mood, anxiety and, rarely, thoughts of self-harm, although a clear cause-and-effect link has not been established. Acne itself can also affect mood. The Malaysian regulator, NPRA, issued a safety alert on oral retinoids and neuropsychiatric symptoms, advising patients and carers to watch for changes in mood or behaviour and seek medical advice if they appear. Read the NPRA safety alert on oral retinoids. If you feel very low or have thoughts of harming yourself, contact your doctor or a crisis service straight away.

Looking after your skin: use a gentle moisturiser, lip balm and a daily sunscreen. Read dry skin: causes and treatment in Malaysia, physical vs chemical sunscreen and the skin barrier.

Pregnancy Rules: The Most Important Safety Point

Isotretinoin causes serious birth defects and a high risk of miscarriage. It must never be taken during pregnancy, and pregnancy must be ruled out before and during treatment. For women who could become pregnant, the usual requirements are:

• A negative pregnancy test before starting, and regular tests during treatment
• Effective contraception during treatment and for a period after stopping, as set out in your prescriber’s pregnancy prevention programme (often at least four weeks, and many programmes ask for two methods)
• Stopping the medicine immediately and contacting your doctor if you think you might be pregnant

Men do not need pregnancy tests or special contraception because isotretinoin does not affect sperm in a way that harms a pregnancy, but they should still take the medicine only as prescribed. Do not donate blood during treatment or for a period after, as set by your doctor. For regulatory details, see NPRA’s guidance on pregnancy prevention for retinoids. If you are breastfeeding, tell your doctor. Isotretinoin is not suitable.

Blood Tests and Monitoring

Your doctor may check your blood fats (cholesterol and triglycerides) and liver function before treatment and during it. Monitoring is more important at higher doses, with longer courses, or if you have risk factors such as high cholesterol, liver disease or heavy alcohol use. Your doctor will also check how you are feeling, including your mood, and how your skin and eyes are coping. Requirements vary by prescriber, so follow your dermatologist’s schedule.

Who Should Not Take Isotretinoin

Isotretinoin is not suitable for people who:

• Are pregnant, planning a pregnancy or breastfeeding
• Have not agreed to follow the pregnancy prevention programme (for women who could become pregnant)
• Have significant liver disease or very high blood fats
• Are taking vitamin A supplements or other retinoids
• Are allergic to the medicine or its ingredients
• Are under 12, or have acne that has not reached puberty

Tell your doctor about your full medical history, especially depression or other mood conditions, diabetes, eating disorders and a family history of high cholesterol.

Lifestyle and Treatment Precautions

While on isotretinoin, and for some time after, your skin is thinner and more fragile. Ask your dermatologist before having any skin procedure. Waxing, laser resurfacing, deep chemical peels and some other procedures are usually avoided during treatment and for several months afterwards, to reduce the risk of scarring and delayed healing. Your doctor will tell you when it is safe to restart treatments such as chemical skin peels or microdermabrasion.

Other points:

• Avoid heavy alcohol use, which adds to liver strain.
• Use sun protection, and avoid prolonged sun exposure.
• Be careful with contact lenses if your eyes are dry.
• Do not squeeze spots. See why popping pimples is harmful.

Interactions and Other Precautions

• Vitamin A and other retinoids: do not take vitamin A supplements or other retinoids alongside isotretinoin, because the effects add up and can be severe. This includes topical retinoids unless your doctor advises otherwise. See tretinoin uses and side effects in Malaysia.
• Tetracycline antibiotics (such as doxycycline and minocycline): taking these together can raise the risk of headache and blurred vision from raised pressure around the brain. Report severe headaches or vision changes immediately.
• Other medicines and supplements: tell your doctor about everything you take, including traditional and herbal products.

Who Can Prescribe Isotretinoin in Malaysia

Oral isotretinoin is a prescription-only medicine. In Malaysia it should be started and supervised by a dermatologist or a specialist working in a facility able to provide proper monitoring. Doctors at aesthetic clinics can help with referrals, skincare and suitable procedures before and after treatment, but they should not start isotretinoin themselves. Confirm your prescriber’s registration. You can check a doctor’s registration with the Malaysian Medical Council. If you are not sure whether isotretinoin is right for you, our doctors can assess your acne and refer you to a dermatologist when needed. Book a consultation or meet our doctors.

For after treatment, scars and marks may remain. See acne scar treatment and how to start acne scar treatment after active breakouts.

Frequently Asked Questions

Is isotretinoin the same as Roaccutane?

Isotretinoin is the active ingredient. Roaccutane is one brand name, and other brands and generics exist. They contain the same medicine, but products differ in strength and formulation, so only use the product and dose your prescriber gives you.

How long does a course last?

It varies. Many courses last around four to six months, and some are longer, depending on your dose, weight and response. Your dermatologist decides when to stop. Stopping early raises the chance of acne returning.

Will acne come back after treatment?

Often it does not, and many people stay clear for a long time. Some people relapse and need another course or maintenance with creams or other treatments. Your doctor can advise on a plan to help keep skin clear. See what causes adult acne to come back so often.

Can I buy isotretinoin online?

No. It is a prescription medicine, and products sold online may be fake, wrongly dosed or contaminated. Buying without supervision removes pregnancy checks and blood-test monitoring, which are there to keep you safe.