Drugplain

Guanfacine Extended-Release 3 mg/1

Guanfacine · TABLET, EXTENDED RELEASE · Proficient Rx LP

1 Recall on RecordCurrently in Shortage
Plain English

Guanfacine Extended-Release is a tablet, extended release containing guanfacine at 3 mg/1, taken oral. Manufactured by Proficient Rx LP.

Key Facts

Brand Name
Guanfacine Extended-Release
Generic Name
Guanfacine
NDC Code (Product)
71205-946
Manufacturer
Proficient Rx LP
Strength
3 mg/1
Dosage Form
TABLET, EXTENDED RELEASE
Route
ORAL
Marketing Status
Application #
ANDA201408
Drug Class
Central alpha-2 Adrenergic Agonist [EPC]
Marketing Start
07/07/2017

Recall History

1 Recall on Record
Class II03/31/2021

Apotex Corp.

Cross Contamination with Other Product: Product is being recalled due to Trace Amounts of Quetiapine Fumarate

OngoingVoluntary: Firm initiated

Side Effects Reported to FDA

FDA FAERS database · These are reported events, not confirmed side effects

drug ineffective433 reports
off label use329 reports
aggression176 reports
somnolence174 reports
toxicity to various agents162 reports
hypotension154 reports
fatigue147 reports
nausea144 reports
anxiety136 reports
drug interaction124 reports

Full Prescribing Information

Source: FDA Drug Label (SPL)For healthcare professionals

Indications & Usage

1 INDICATIONS AND USAGE Guanfacine extended-release tablets are indicated for the treatment of Attention Deficit Hyperactivity Disorder (ADHD) as monotherapy and as adjunctive therapy to stimulant medications [see Clinical Studies (14 )] . Guanfacine extended-release tablets are a central alpha 2A -adrenergic receptor agonist indicated for the treatment of Attention Deficit Hyperactivity Disorder (ADHD) as monotherapy and as adjunctive therapy to stimulant medications ( 1 , 1 4 ).

Dosage & Administration

2 DOSAGE AND ADMINISTRATION Recommended dose: 1 mg to 7 mg (0.05 to 0.12 mg/kg target weight based dose range) once daily in the morning or evening based on clinical response and tolerability ( 2.2 ). Begin at a dose of 1 mg once daily and adjust in increments of no more than 1 mg/week ( 2.2 ). Do not crush, chew or break tablets before swallowing ( 2.1 ). Do not administer with high-fat meals, because of increased exposure ( 2.1 ). Do not substitute for immediate-release guanfacine tablets on a mg-per-mg basis, because of differing pharmacokinetic profiles ( 2.3 ). If switching from immediate-release guanfacine, discontinue that treatment and titrate with guanfacine extended-release tablets as directed ( 2.3 ). When discontinuing, taper the dose in decrements of no more than 1 mg every 3 to 7 days to avoid rebound hypertension ( 2.5 ). 2.1 General Instruction for Use Swallow tablets whole. Do not crush, chew, or break tablets because this will increase the rate of guanfacine release. Do not administer with high fat meals, due to increased exposure. 2.2 Dose Selection Take guanfacine extended-release tablets orally once daily, either in the morning or evening, at approximately the

Contraindications

4 CONTRAINDICATIONS Guanfacine extended-release tablets are contraindicated in patients with a history of a hypersensitivity reaction to guanfacine extended-release tablets or its inactive ingredients, or other products containing guanfacine. Rash and pruritus have been reported. History of hypersensitivity to guanfacine extended-release tablets, its inactive ingredients, or other products containing guanfacine ( 4 ).

Drug Interactions

7 DRUG INTERACTIONS Table 14 contains clinically important drug interactions with guanfacine extended-release tablets [see Clinical Pharmacology (12.3) ]. Table 14: Clinically Important Drug Interactions: Effect of other Drugs on Guanfacine Extended-Release Tablets Concomitant Drug Name or Drug Class Clinical Rationale and Magnitude of Drug Interaction Clinical Recommendation Strong and moderate CYP3A4 inhibitors, e.g., ketoconazole, fluconazole Guanfacine is primarily metabolized by CYP3A4 and its plasma concentrations can be significantly affected resulting in an increase in exposure Consider dose reduction [see Dosage and administration (2.7) ] Strong and moderate CYP3A4 inducers, e.g., rifampin, efavirenz Guanfacine is primarily metabolized by CYP3A4 and its plasma concentrations can be significantly affected resulting in a decrease in exposure Consider dose increase [see Dosage and administration (2.7) ] Strong and moderate CYP3A4 inhibitors increase guanfacine exposure. Decrease guanfacine extended-release tablets to 50% of target dosage when coadministered with strong and moderate CYP3A4 inhibitors ( 2.7 ). Strong and moderate CYP3A4 inducers decrease guanfacine exposure. Ba

Adverse Reactions

6 ADVERSE REACTIONS The following serious adverse reactions are described elsewhere in the labeling: Hypotension, bradycardia, and syncope [see Warnings and Precautions (5.1) ] Sedation and somnolence [see Warnings and Precautions (5.2) ] Cardiac conduction abnormalities [see Warnings and Precautions (5.3) ] Rebound Hypertension [see Warnings and Precautions ( 5.4 )] Most common adverse reactions (≥5% and at least twice placebo rate) in fixed-dose monotherapy ADHD trials in children and adolescents (6 to 17 years): hypotension, somnolence, fatigue, nausea, and lethargy ( 6.1 ) Flexible dose-optimization ADHD trials in children (6 to 12 years) and adolescents (13 to 17 years): somnolence, hypotension, abdominal pain, insomnia, fatigue, dizziness, dry mouth, irritability, nausea, vomiting, and bradycardia ( 6.1 ). Adjunctive treatment to psychostimulant ADHD trial in children and adolescents (6 to 17 years): somnolence, fatigue, insomnia, dizziness, and abdominal pain ( 6.1 ). To report SUSPECTED ADVERSE REACTIONS, contact Apotex Corp. at 1-800-706-5575 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely

Frequently Asked Questions

What is Guanfacine Extended-Release used for?

Guanfacine Extended-Release contains Guanfacine. It is a tablet, extended release taken oral. Consult your doctor for specific uses.

Is Guanfacine Extended-Release a controlled substance?

Guanfacine Extended-Release is not classified as a controlled substance by the DEA.

What is the generic name for Guanfacine Extended-Release?

The generic name for Guanfacine Extended-Release is Guanfacine. There are 9 other brand versions of Guanfacine.

What is the NDC code for Guanfacine Extended-Release 3 mg/1?

The NDC (National Drug Code) for Guanfacine Extended-Release 3 mg/1 is 71205-946, listed by Proficient Rx LP.