adapalene vs brodalumab
Side-by-side comparison of adapalene and brodalumab Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Differin
Siliq
Adapalene and benzoyl peroxide gel is a medicine used on the skin to treat acne. It contains two medicines: adapalene (a retinoid) and benzoyl peroxide.
Siliq is a medicine used to treat moderate to severe plaque psoriasis. It is for adults who can use systemic therapy or phototherapy and have not responded well to other treatments.
This medicine treats acne, a skin condition with pimples and bumps. You can use this medicine if you are 9 years or older. Apply the gel to the affected areas of your face and/or trunk.
Siliq treats moderate to severe plaque psoriasis. Psoriasis is a skin condition that causes red, itchy, and scaly patches. This medicine is for adults who can use treatments that affect the whole body or light therapy, and who haven't had success with other treatments.
Adapalene is a retinoid that helps to unclog pores and reduce inflammation. Benzoyl peroxide is an antibacterial medicine that kills acne-causing bacteria. Together, they help to clear up acne.
Siliq blocks a protein called interleukin-17 receptor A (IL-17RA). This protein is involved in causing inflammation in psoriasis. By blocking it, Siliq helps reduce the symptoms of psoriasis.
- • Dry skin
- • Contact dermatitis (skin rash)
- • Burning feeling on the skin where you put the medicine
- • Skin irritation
- • Joint pain
- • Headache
- • Feeling tired
- • Diarrhea
- • Pain in the throat
- The medicine did not work 51,276
- Dry skin 44,990
- Burning feeling on the skin 41,633
- Acne 39,264
- Redness 38,379
- Psoriasis 471
- Drug Ineffective 230
- Joint pain 181
- Tiredness 163
- Psoriatic arthritis 156
When using this medicine, avoid sunlight and sunlamps. If you can't avoid the sun, wear sunscreen. This medicine may cause skin irritation, redness, scaling, dryness, stinging, or burning. If this happens, use a moisturizer or apply the medicine less often. If irritation is severe, stop using the medicine.
Siliq may cause suicidal thoughts and behavior. Tell your doctor if you have a history of depression or suicidal thoughts. If you have new or worsening suicidal thoughts or depression, get medical help right away. Siliq is only available through a special program because of this risk.
If you are pregnant, only use this medicine if the benefit outweighs the risk to the baby. It is not known if this medicine passes into breast milk, so talk to your doctor before using it if you are breastfeeding.
It is not known if Siliq can harm your unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. It is also not known if Siliq passes into breast milk. Talk to your doctor about the risks and benefits of breastfeeding while using Siliq.
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How to Read This adapalene vs brodalumab Comparison
adapalene is classified in the Retinoid (Topical) drug class, while brodalumab sits within the Anti-IL-17 Receptor Monoclonal Antibody class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. 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 215,542 submissions while brodalumab has 1,201. 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 substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between adapalene and brodalumab — always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.