Acitretin

What Is Acitretin?

Acitretin is an oral retinoid, a medication derived from vitamin A. It belongs to a class of drugs known as systemic retinoids, which work by affecting how skin cells grow, divide, and shed.

Acitretin is primarily prescribed for the treatment of severe psoriasis, particularly forms that have not responded well to other treatments. It may be used for various psoriasis subtypes, including plaque, pustular, and erythrodermic psoriasis. In some cases, dermatologists may prescribe it for other severe disorders of skin keratinization, based on individual clinical judgment.

What Is the Recommended Dosage of Acitretin?

There is no single “standard” dose of acitretin appropriate for everyone. Dosing is highly individualized and depends on several factors, including:

• The specific skin condition being treated and its severity
• The patient’s age
• Body weight
• Liver function, since acitretin is processed by the liver
• How well the patient tolerates the medication
• Response to treatment over time, which may require dose adjustments

Available dosage form: Acitretin 10mg, Acitretin 25mg

Because acitretin carries significant risks and requires careful monitoring, dosing must always be determined and adjusted by a licensed dermatologist. Patients should never start, increase, decrease, or stop this medication without direct medical guidance. This page intentionally does not provide specific dosing numbers, as appropriate dosing can only be determined through a full clinical evaluation.

How Acitretin Works

Acitretin works by normalizing the growth cycle of skin cells. In conditions like psoriasis, skin cells multiply far more rapidly than normal, leading to the thick, scaly, inflamed patches characteristic of the disease. Acitretin helps slow this excessive cell turnover and supports more typical skin cell development and shedding.

It is important to understand that acitretin manages symptoms rather than curing the underlying condition. Psoriasis is a chronic condition, and while acitretin can significantly reduce symptoms and improve skin appearance, ongoing management is typically required. Improvement is often gradual, and full benefits may take weeks to months to become apparent.

Is a Prescription Required to Buy Acitretin Online?

Yes. Acitretin is a prescription-only medication and cannot be legally purchased without a valid prescription from a licensed healthcare provider.

Due to its potency and safety profile, treatment should only be initiated and monitored by a dermatologist or another physician experienced in prescribing systemic retinoids.

Patients should be aware of the following safety guidance:

• Never purchase acitretin from unlicensed or unverified online sources
• Avoid products marketed as “veterinary grade” or without clear pharmaceutical labeling
• Counterfeit medications may contain incorrect dosages, contaminants, or no active ingredient at all, posing serious health risks
• Always obtain this medication from a licensed pharmacy, using a prescription issued after a proper medical evaluation

Side Effects of Acitretin

Common Side Effects

Acitretin frequently causes side effects related to its retinoid properties, many of which resemble symptoms of vitamin A excess. These may include:

• Dry, chapped, or peeling skin
• Dry or cracked lips (cheilitis)
• Dry eyes or reduced tolerance to contact lenses
• Dry or irritated nasal passages, sometimes with nosebleeds
• Thinning hair
• Itching
• Nail changes or fragility
• Sensitivity to sunlight

Serious Side Effects

Although less common, some side effects can be serious and require prompt medical attention. Patients should contact their prescriber or seek urgent care if they experience:

• Signs of liver problems, such as yellowing of the skin or eyes, dark urine, severe fatigue, or abdominal pain
• Vision changes or difficulty seeing at night
• Severe headache, nausea, or vision disturbances, which could indicate increased pressure in the brain
• Signs of pancreatitis, such as severe abdominal pain
• Bone or joint pain
• Mood changes, including new or worsening depression
• Signs of an allergic reaction, such as swelling of the face, lips, or throat, or difficulty breathing

This is not a complete list. Patients should discuss the full risk profile with their dermatologist and report any new or worsening symptoms promptly. Most side effects are manageable with medical guidance, but serious reactions, while uncommon, do require immediate attention.

Drug Interactions

Acitretin can interact with a range of other substances, potentially increasing side effects or reducing effectiveness. Key interaction categories include:

• Other vitamin A–containing products or retinoids, which can increase the risk of vitamin A toxicity
• Methotrexate, due to increased risk of liver toxicity
• Tetracycline antibiotics, which may raise the risk of increased pressure in the brain
• Certain contraceptives (such as progestin-only “mini-pills”), which may have reduced effectiveness
• Alcohol, which can affect how the body processes acitretin and may increase certain risks

Patients should also inform their prescriber about any over-the-counter medications, vitamins, and herbal or dietary supplements they are taking, as these can also interact with acitretin. A complete and current medication list should always be shared with the prescribing dermatologist before starting treatment and whenever new medications are added.

Safety & Important Considerations

• Liver and kidney function: Acitretin is processed by the liver, and regular liver function monitoring is typically required during treatment. Patients with existing liver disease may not be appropriate candidates.
• Pregnancy: Acitretin carries a significant risk of severe birth defects and is contraindicated during pregnancy. Because the medication can remain in the body for an extended period after stopping treatment, strict pregnancy prevention measures are required for individuals who could become pregnant, both during and for a prolonged period after treatment. This must be discussed in detail with a prescribing physician.
• Breastfeeding: Acitretin is generally not recommended during breastfeeding due to potential risks to the infant.
• Children and adolescents: Use in younger patients requires careful specialist evaluation, including consideration of effects on bone growth with long-term use.
• Older adults: May be more sensitive to certain side effects; dosing and monitoring should be individualized.
• Monitoring requirements: Regular blood tests (including liver function and lipid levels) are typically part of ongoing care, along with periodic clinical evaluation of treatment response and side effects.
• Regulatory safety warnings: Acitretin carries boxed warnings related to the risk of severe birth defects and is subject to restricted distribution programs in some countries to help prevent pregnancy exposure. Patients should review all safety information provided by their pharmacist and prescriber.

This medication should only be used for its approved indications, as determined by a licensed specialist.

Who This Medication Is For

Acitretin is generally prescribed for adults and, in select cases, adolescents with severe, treatment-resistant forms of psoriasis. It is typically considered when other treatment options have not provided adequate control of symptoms, or when the severity of the condition warrants a systemic approach. The decision to use acitretin is based on an individualized assessment of the condition’s severity, prior treatment history, and overall health status, conducted by a dermatologist.

Who Should Not Take Acitretin

Acitretin is not appropriate for everyone. It should generally be avoided in individuals who:

• Are pregnant or planning to become pregnant
• Are breastfeeding
• Have severe liver disease
• Have significantly elevated blood lipid levels (in some cases)
• Have a known hypersensitivity to acitretin or other retinoids
• Are currently taking methotrexate or tetracycline antibiotics (due to interaction risks)
• Consume substantial amounts of alcohol regularly

This list is not exhaustive. A complete medical history review by a licensed specialist is necessary to determine whether acitretin is appropriate for a given individual.

What to Do If You Miss a Dose

If a dose of acitretin is missed, patients should generally take it as soon as they remember, unless it is close to the time of the next scheduled dose. In that case, the missed dose should typically be skipped rather than doubled.

Never take two doses at once to make up for a missed dose, as this can increase the risk of side effects without providing additional benefit.

If there is any uncertainty about what to do after a missed dose, patients should contact their prescribing dermatologist or pharmacist for specific guidance.

Related medications to Acitretin

Acitretin is an oral retinoid with a specialized role in severe psoriasis. Related psoriasis-focused pages include Calcipotriol/Calcipotriene, Tazarotene, and Clobetasol. These treatments differ substantially in route, safety requirements, and clinical use.

Storage Instructions

• Store acitretin capsules at room temperature, generally between 68°F and 77°F (20°C to 25°C), unless otherwise directed on the label
• Keep the medication in its original container, protected from excess moisture and direct light
• Avoid storing in bathrooms or other high-humidity environments
• Keep out of reach of children and pets at all times, ideally in a locked or secured location
• Do not use expired medication; dispose of unused capsules according to local guidelines or pharmacist instructions

Disclaimer:

This page is for educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Patients must consult a licensed dermatologist or other qualified medical specialist before starting, changing, or stopping treatment with acitretin. Treatment decisions must be based on a full clinical evaluation by a qualified specialist, taking into account individual health history, current medications, and treatment goals.