Halobetasol Propionate And Tazarotene

FDA Drug Information • Also known as: Duobrii

Brand Names: Duobrii
Drug Class: Retinoid [EPC]
Route: TOPICAL
Dosage Form: LOTION
Product Type: HUMAN PRESCRIPTION DRUG

Description

11 DESCRIPTION DUOBRII Lotion is a combination product with halobetasol propionate and tazarotene as the active ingredients in a white to off-white lotion formulation intended for topical use. Halobetasol propionate is a synthetic corticosteroid. The chemical name for halobetasol propionate is [(6S,9R,16S,17R)-17-(2-chloroacetyl)-6,9-difluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl] propanoate. The structural formula for halobetasol propionate is represented below: Molecular Formula: C 25 H 31 ClF 2 O 5 Molecular Weight: 484.96 Tazarotene is a member of the acetylenic class of retinoids. The chemical name for tazarotene is 6-[(3,4-Dihydro-4,4-dimethyl-2H-1-benzothiopyran-6-yl)ethynyl]-3-pyridinecarboxylic acid ethyl ester. The structural formula for tazarotene is represented below: Molecular Formula: C 21 H 21 NO 2 S Molecular Weight: 351.46 Each gram of DUOBRII Lotion contains 0.1 mg (0.01%) halobetasol propionate and 0.45 mg (0.045%) tazarotene in a white to off-white lotion base consisting of carbomer copolymer type B, carbomer homopolymer type A, diethyl sebacate, edetate disodium dihydrate, light mineral oil, methylparaben, propylparaben, purified water, sodium hydroxide, sorbitan monooleate and sorbitol solution, 70%. chem1.jpg chem2.jpg

What Is Halobetasol Propionate And Tazarotene Used For?

1 INDICATIONS AND USAGE DUOBRII ® (halobetasol propionate and tazarotene) Lotion, 0.01%/0.045% is indicated for the topical treatment of plaque psoriasis in adults. DUOBRII Lotion is a combination of halobetasol propionate and tazarotene indicated for the topical treatment of plaque psoriasis in adults. ( 1 )

Dosage and Administration

2 DOSAGE AND ADMINISTRATION Apply a thin layer of DUOBRII Lotion once daily to cover only affected areas and rub in gently. If a bath or shower is taken prior to application, the skin should be dry before applying the lotion. The total dosage should not exceed approximately 50 g per week because of the potential for the drug to suppress the hypothalamic-pituitary-adrenal (HPA) axis [see Warnings and Precautions (5.2) ] . Do not use with occlusive dressings unless directed by a physician. Discontinue treatment when control is achieved. Avoid application of DUOBRII Lotion on the face, groin, or in the axillae. DUOBRII Lotion is not for oral, ophthalmic, or intravaginal use.

Apply a thin layer of DUOBRII Lotion to the affected areas once daily. ( 2 )

Not for oral, ophthalmic, or intravaginal use. ( 2 )

Side Effects (Adverse Reactions)

6 ADVERSE REACTIONS

The most common adverse reactions are contact dermatitis (7%), application site pain (3%), folliculitis (2%), skin atrophy (2%), and excoriation (2%). ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Bausch Health US, LLC at 1-800-321-4576 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. In randomized, double-blind, multicenter, vehicle-controlled clinical trials, 410 adults with plaque psoriasis were treated with DUOBRII Lotion or vehicle lotion and had post-baseline safety data. Subjects applied DUOBRII Lotion or vehicle lotion once daily for up to 8 weeks. Table 1 presents adverse reactions that occurred in at least 1% of subjects treated with DUOBRII Lotion and more frequently than in vehicle-treated subjects. Table 1: Adverse Reactions Occurring in ≥1% of the Subjects Treated with DUOBRII Lotion through Week 8 Adverse Reaction DUOBRII Lotion (N=270) Vehicle Lotion (N=140) Contact Dermatitis 20 (7%) 0 Application Site Pain 7 (3%) 1 (1%) Folliculitis 5 (2%) 0 Skin Atrophy 5 (2%) 0 Excoriation 5 (2%) 0 Rash 4 (1%) 0 Skin Abrasion 3 (1%) 0 Skin Exfoliation 2 (1%) 0

Contraindications

4 CONTRAINDICATIONS DUOBRII Lotion is contraindicated in pregnancy ( 4.1 , 8.1 ) 4.1 Pregnancy DUOBRII Lotion is contraindicated in pregnancy [ see Warnings and Precautions (5.1) , Use in Specific Populations ( 8.1 , 8.3) ].

Pregnancy and Breastfeeding

8.1 Pregnancy Risk Summary Based on data from animal reproduction studies, retinoid pharmacology, and the potential for systemic absorption, DUOBRII Lotion may cause fetal harm when administered to a pregnant female and is contraindicated during pregnancy. Safety in pregnant females has not been established. The potential risk to the fetus outweighs the potential benefit to the mother from DUOBRII Lotion during pregnancy; therefore, DUOBRII Lotion should be discontinued as soon as pregnancy is recognized [see Contraindications (4) , Warnings and Precautions (5.1) , Clinical Pharmacology (12.3) ] . Observational studies suggest an increased risk of low birthweight in infants with the maternal use of potent or very potent topical corticosteroids ( see Data ). In animal reproduction studies with pregnant rats, reduced fetal body weights and reduced skeletal ossification were observed after topical administration of a tazarotene gel formulation during the period of organogenesis at a dose 11 times the maximum recommended human dose (MRHD) (based on AUC comparison). In animal reproduction studies with pregnant rabbits, single incidences of known retinoid malformations, including spina bifida, hydrocephaly, and heart anomalies were observed after topical administration of a tazarotene gel formulation at 116 times the MRHD (based on AUC comparison) (see Data) . In animal reproduction studies with pregnant rats and rabbits, malformations, fetal toxicity, developmental delays, and/or behavioral delays were observed after oral administration of tazarotene during the period of organogenesis at doses 9 and 228 times, respectively, the MRHD (based on AUC comparison). In pregnant rats, decreased litter size, decreased numbers of live fetuses, decreased fetal body weights, and increased malformations were observed after oral administration of tazarotene prior to mating through early gestation at doses 9 times the MRHD (based on AUC comparison) (see Data) . In animal reproduction...

How Supplied

16 HOW SUPPLIED/STORAGE AND HANDLING DUOBRII (halobetasol propionate and tazarotene) Lotion, 0.01%/0.045% is a white to off-white lotion supplied in a white aluminum tube as follows:

100 g (NDC 0187-0653-01) Storage and Handling Conditions Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature] . Protect from freezing.

About This Information

This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.

What are side effects?

Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.

What are drug interactions?

Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.