What is the difference between ACITRETIN and ALITRETINOIN?

ACITRETIN and ALITRETINOIN are both Retinoids, so they work through the same broad mechanism. They differ in dosing, half-life, side-effect frequency, and how individual patients tolerate them. See the head-to-head sections below for the specifics.

Is ACITRETIN the same as PANRETIN?

No. ACITRETIN (ACITRETIN) and PANRETIN (ALITRETINOIN) are distinct medications. They are sometimes confused because of similar branding or because they treat overlapping conditions, but they have different active ingredients and different safety profiles.

Which has fewer side effects, ACITRETIN or ALITRETINOIN?

Side-effect frequency varies by individual. The side-effect comparison section on this page shows FAERS-reported events for each drug side by side. FAERS is voluntary reporting, so it reflects what patients and clinicians chose to report, not absolute population risk.

Can I switch from ACITRETIN to ALITRETINOIN?

Switching medications should always be done under prescriber supervision. The "patient stories" section on this page includes accounts from people who have made the switch and what their transition felt like, but those are individual experiences, not protocols.

ACITRETIN vs ALITRETINOIN

Compare ACITRETIN (ACITRETIN) and ALITRETINOIN (PANRETIN) — clinical data, side effects, and patient experiences.

ACITRETIN

ACITRETIN · Retinoid

How it works

Other agent

Approved for

INDICATIONS AND USAGE Acitretin Capsules

USP are indicated for the treatment of severe psoriasis in adults. Because of significant adverse effects associated with its use

Acitretin Capsules

USP should be prescribed only by those knowledgeable in the systemic use of retinoids. In females of reproductive potential

OralTablet

ALITRETINOIN

PANRETIN · Retinoid

How it works

12.1 Mechanism of Action Alitretinoin (9-cis-retinoic acid) is a naturally occurring endogenous retinoid that binds to and activates all known intracellular retinoid receptor subty...

Approved for

symptomatic lymphedema

symptomatic pulmonary KS

TopicalTablet

Quick Comparison

ACITRETINALITRETINOIN

Drug Class

Retinoid

Route

Oral

Topical

Half-Life

—

FDA Approved

—

Side Effect Frequency Comparison

Estimated frequency (%) based on clinical trial data

Side Effects

ACITRETIN

Drug Not Working

>10%

Fatigue

1-10%

Itching

1-10%

Nausea

1-10%

Headache

0.1-1%

Fever

0.1-1%

General Unwellness

0.1-1%

Diarrhea

0.1-1%

ALITRETINOIN

Drug Not Working

>10%

Headache

1-10%

Vomiting

1-10%

Diarrhea

0.1-1%

Fatigue

0.1-1%

Nausea

0.1-1%

Limb Pain

0.1-1%

Condition Worsened

0.1-1%

FDA Warnings

ACITRETIN

CONTRAINDICATIONS AND WARNINGS: Pregnancy Acitretin must not be used by females who are pregnant, or who intend to become pregnant during therapy or at any time for at least 3 years following discontinuation of therapy
Acitretin should be prescribed only by those who have special competence in the diagnosis and treatment of severe psoriasis, are experienced in the use of systemic retinoids, and understand the risk of teratogenicity
, P regnancy P revention is E ssential with T reatment, has been developed to educate women of childbearing potential and their healthcare providers about the serious risks associated with acitretin and to help prevent pregnancies from occurring with the use of this drug and for 3 years after its discontinuation
Acitretin is contraindicated in females of reproductive potential unless the patient meets ALL of the following conditions : Must have had 2 negative urine or serum pregnancy tests with a sensitivity of at least 25 mIU per mL before receiving the initial prescription for acitretin

ALITRETINOIN

5 WARNINGS AND PRECAUTIONS • Embryo-Fetal Toxicity : Can cause fetal harm
Advise pregnant women of the potential risk to a fetus
Advise women of the potential risk to a fetus

Clinical Trial Data

No head-to-head clinical studies found for ACITRETIN vs ALITRETINOIN.

ACITRETIN vs ALITRETINOIN: What You Should Know

Key Differences

Both ACITRETIN and ALITRETINOIN belong to the Retinoid class. While they share a similar mechanism of action, differences in pharmacokinetics, dosing, and side effect profiles may make one more suitable than the other for individual patients. ACITRETIN is administered via Oral, whereas ALITRETINOIN uses Topical. Route of administration can affect onset of action and patient adherence.

Safety Considerations

ACITRETIN carries 4 FDA warnings. ALITRETINOIN carries 3 FDA warnings. Patients should discuss all warnings and contraindications with their healthcare provider before starting or switching medications..

This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.

Related Comparisons

ALITRETINOIN vs ISOTRETINOIN→ACITRETIN vs ISOTRETINOIN→ALITRETINOIN vs TRETINOIN→ALITRETINOIN vs CLINDAMYCIN PHOSPHATE AND TRETINOIN GEL 1.2%→ALITRETINOIN vs TRETINOIN AND BENZOYL PEROXIDE→ALITRETINOIN vs CLINDAMYCIN PHOSPHATE AND TRETINOIN→

Primary sources

Every figure on this comparison links back to its primary source. See data sources and methodology for the full provenance trail.

ACITRETIN: DailyMed label · FAERS adverse events · ClinicalTrials.gov
ALITRETINOIN: DailyMed label · FAERS adverse events · ClinicalTrials.gov

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ACITRETIN vs ALITRETINOIN

Compare ACITRETIN (ACITRETIN) and ALITRETINOIN (PANRETIN) — clinical data, side effects, and patient experiences.

ACITRETIN

ACITRETIN · Retinoid

How it works

Other agent

Approved for

INDICATIONS AND USAGE Acitretin Capsules

USP are indicated for the treatment of severe psoriasis in adults. Because of significant adverse effects associated with its use

Acitretin Capsules

USP should be prescribed only by those knowledgeable in the systemic use of retinoids. In females of reproductive potential

OralTablet

ALITRETINOIN

PANRETIN · Retinoid

How it works

12.1 Mechanism of Action Alitretinoin (9-cis-retinoic acid) is a naturally occurring endogenous retinoid that binds to and activates all known intracellular retinoid receptor subty...

Approved for

symptomatic lymphedema

symptomatic pulmonary KS

TopicalTablet

Quick Comparison

ACITRETINALITRETINOIN

Drug Class

Retinoid

Route

Oral

Topical

Half-Life

—

FDA Approved

—

Side Effect Frequency Comparison

Estimated frequency (%) based on clinical trial data

Side Effects

ACITRETIN

Drug Not Working

>10%

Fatigue

1-10%

Itching

1-10%

Nausea

1-10%

Headache

0.1-1%

Fever

0.1-1%

General Unwellness

0.1-1%

Diarrhea

0.1-1%

ALITRETINOIN

Drug Not Working

>10%

Headache

1-10%

Vomiting

1-10%

Diarrhea

0.1-1%

Fatigue

0.1-1%

Nausea

0.1-1%

Limb Pain

0.1-1%

Condition Worsened

0.1-1%

FDA Warnings

ACITRETIN

CONTRAINDICATIONS AND WARNINGS: Pregnancy Acitretin must not be used by females who are pregnant, or who intend to become pregnant during therapy or at any time for at least 3 years following discontinuation of therapy
Acitretin should be prescribed only by those who have special competence in the diagnosis and treatment of severe psoriasis, are experienced in the use of systemic retinoids, and understand the risk of teratogenicity
, P regnancy P revention is E ssential with T reatment, has been developed to educate women of childbearing potential and their healthcare providers about the serious risks associated with acitretin and to help prevent pregnancies from occurring with the use of this drug and for 3 years after its discontinuation
Acitretin is contraindicated in females of reproductive potential unless the patient meets ALL of the following conditions : Must have had 2 negative urine or serum pregnancy tests with a sensitivity of at least 25 mIU per mL before receiving the initial prescription for acitretin

ALITRETINOIN

5 WARNINGS AND PRECAUTIONS • Embryo-Fetal Toxicity : Can cause fetal harm
Advise pregnant women of the potential risk to a fetus
Advise women of the potential risk to a fetus

Clinical Trial Data

No head-to-head clinical studies found for ACITRETIN vs ALITRETINOIN.

ACITRETIN vs ALITRETINOIN: What You Should Know

Key Differences

Safety Considerations

This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.