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Diclofenac topical patch

FLECTOR

Pronunciation: dye-KLOE-fen-ak

Diclofenac topical patch ballicule: receptor binding, kinetics and half-life diagram
Mechanism of action: Diclofenac topical patch ballicule
Diclofenac topical patch VOLTAREN mascot mnemonic cartoon
Visual mnemonic: Diclofenac topical patch mascot
“Dick Loaf Voltron”
“The N said... NSAID”

What it isDiclofenac epolamine 1.3% topical patch (FLECTOR, 2007) — a 12-hour patch applied directly over minor strains, sprains, and contusions; topical NSAID delivery for a focal soft-tissue injury.

Why this oneSame molecule and receptor pharmacology as the parent card — the formulation (and its label) is the difference.

What limits itClass warnings of the parent molecule apply unchanged.

Diclofenac topical patch molecular structure (skeletal formula)
Molecular structure: Diclofenac topical patch

FDA-approved for

FDA label

BOXED WARNING NSAIDs cause increased risk of serious cardiovascular thrombotic events (MI, stroke) and serious GI bleeding, ulceration, and perforation; contraindicated in the setting of CABG surgery.
FDA dosingPopulationStartTargetMax
Acute pain due to minor strains, sprains, and contusionsAdults and pediatric patients 6 years and older1 topical system to the most painful area BID1 topical system BID

Renal Undefined

Hepatic Undefined

Use the lowest effective dosage for the shortest duration consistent with treatment goals.

Instructions

Available strengths

Contraindications

Cautions

Adverse reactions

Pregnancy Avoid use at about 30 weeks gestation and later (premature closure of fetal ductus arteriosus); limit dose/duration between about 20 and 30 weeks (oligohydramnios/neonatal renal impairment).

Lactation Small amounts of diclofenac present in human milk (topical exposure <1% of a 50 mg oral dose); consider benefits of breastfeeding with clinical need.

Cost

Diclofenac topical patch (FLECTOR)
Strength#/mogeneric $/unitCostPlus
1.3 %systemper unitnot offered
NADAC is a voluntary CMS survey of what retail community pharmacies pay for the drugs they stock. Diclofenac topical patch is dispensed outside retail pharmacies, so it rarely appears on surveyed invoices.

⚠ BOXED WARNINGS

Classes and tags

Clinical profile

Therapeutic safety burden2 / 4
Overdose danger1 / 4
Weight-gain liability0 / 4
Sedation liability0 / 4
QT / Torsades0 / 4
Direct muscarinic antagonism0 / 4
Embryofetal risk3 / 4

Legacy pregnancy categoryMultiple / indication-, trimester- or formulation-dependent

Defining liabilityGI bleeding, kidney injury, hypertension and fluid retention; many agents increase lithium concentrations.

Open Diclofenac topical patch in the interactive console ↗

Memory aids: interaction avatars

Diclofenac topical patch Box: minimal PK interactions avatar mnemonic
Box: minimal PK interactions

Open Diclofenac topical patch in the interactive console ↗