adapalene vs tretinoin
PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.
Side-by-side comparison of adapalene and tretinoin. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
No summary available.
Tretinoin capsules help put acute promyelocytic leukemia (APL) into remission. You can use this medicine if other treatments have not worked or cannot be used.
Information not available.
Tretinoin capsules treat acute promyelocytic leukemia (APL) in adults and children at least 1 year old. APL is a type of cancer where there is a problem with certain blood cells. This medicine is for people whose APL has not responded to other treatments or for whom other treatments are not an option.
Information not available.
Tretinoin is a retinoid, which is similar to vitamin A. It helps the leukemia cells mature properly. This can reduce the number of abnormal cells in your body.
- • Dry skin
- • Contact dermatitis (skin rash)
- • Burning feeling on the skin where you put the medicine
- • Skin irritation
- • Headache
- • Fever
- • Dry skin or mouth
- • Bone pain
- • Feeling unwell
- Dry Skin 44,990
- Skin Burning Sensation 41,633
- Acne 39,264
- Erythema 38,379
- Skin Irritation 26,225
- Pain 536
- Vomiting 463
- Nausea 423
- Rash 387
- Headache 377
No specific warnings noted.
Tretinoin capsules can cause serious harm to an unborn baby, including birth defects and miscarriage. If you are a woman who can get pregnant, you must have a negative pregnancy test before starting this medicine and use two forms of birth control during treatment and for 1 month after your last dose. This medicine can also cause Differentiation Syndrome, a serious condition that can be life-threatening. Tell your doctor right away if you have fever, trouble breathing, weight gain, or swelling.
No pregnancy information available.
Tretinoin capsules can cause birth defects or miscarriage. If you are pregnant or may become pregnant, do not take this medicine. Do not breastfeed while taking tretinoin capsules and for 1 week after the last dose.
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How to Read This adapalene vs tretinoin Comparison
adapalene is classified in the Retinoid (Topical) drug class, while tretinoin sits within the Retinoid (Topical) class. Because both drugs share the same classification, they are often considered interchangeable in theory, but clinical outcomes rarely track that cleanly. Both drugs are split between OTC and prescription status, which affects access and supervision.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, adapalene has 190,491 submissions while tretinoin has 2,186. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for adapalene or tretinoin.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.