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Intuniv

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Overview

What is Intuniv?

INTUNIV is a once-daily, extended-release formulation of guanfacine hydrochloride (HCl) in a matrix tablet formulation for oral administration only. The chemical designation is N-amidino-2-(2,6-dichlorophenyl) acetamide monohydrochloride. The molecular formula is CHCl NO∙HCl corresponding to a molecular weight of 282.55. The chemical structure is:

Guanfacine HCl is a white to off-white crystalline powder, sparingly soluble in water (approximately 1 mg/mL) and alcohol and slightly soluble in acetone. The only organic solvent in which it has relatively high solubility is methanol (>30 mg/mL). Each tablet contains guanfacine HCl equivalent to 1 mg, 2 mg, 3 mg, or 4 mg of guanfacine base. The tablets also contain hypromellose, methacrylic acid copolymer, lactose, povidone, crospovidone, microcrystalline cellulose, fumaric acid, and glyceryl behenate. In addition, the 3-mg and 4-mg tablets also contain green pigment blend PB-1763.



What does Intuniv look like?



What are the available doses of Intuniv?

Extended-release tablets: 1 mg, 2 mg, 3 mg and 4 mg ()

What should I talk to my health care provider before I take Intuniv?

How should I use Intuniv?

INTUNIVis indicated for the treatment of Attention Deficit Hyperactivity Disorder (ADHD) as monotherapy and as adjunctive therapy to stimulant medications

Swallow tablets whole. Do not crush, chew, or break tablets because this will increase the rate of guanfacine release. 


What interacts with Intuniv?

Sorry No Records found


What are the warnings of Intuniv?

Sorry No Records found


What are the precautions of Intuniv?

Sorry No Records found


What are the side effects of Intuniv?

Sorry No records found


What should I look out for while using Intuniv?

INTUNIV is contraindicated in patients with a history of a hypersensitivity reaction to INTUNIV or its inactive ingredients, or other products containing guanfacine. Rash and pruritus have been reported.


What might happen if I take too much Intuniv?


How should I store and handle Intuniv?

Store at 20° to 25°C (68° to 77°F)Protect from moisture.Store at 20° to 25°C (68° to 77°F)Protect from moisture.INTUNIV is supplied in 1 mg, 2 mg, 3 mg, and 4 mg strength extended-release tablets in 100 count bottles.


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Clinical Information

Chemical Structure

No Image found
Clinical Pharmacology

Guanfacine is a central alpha-adrenergic receptor agonist. Guanfacine is not a central nervous system (CNS) stimulant. The mechanism of action of guanfacine in ADHD is not known.

Non-Clinical Toxicology
INTUNIV is contraindicated in patients with a history of a hypersensitivity reaction to INTUNIV or its inactive ingredients, or other products containing guanfacine. Rash and pruritus have been reported.

In evaluating the potential for interactions among co-administered antiepilepsy drugs (AEDs), whether or not an AED induces or does not induce metabolic enzymes is an important consideration. Carbamazepine, phenytoin, primidone, and phenobarbital are generally classified as enzyme inducers; valproate and gabapentin are not. Tiagabine HCl is considered to be a non-enzyme inducing AED (see ).

The drug interaction data described in this section were obtained from studies involving either healthy subjects or patients with epilepsy.

Effects of Tiagabine HCl on other Antiepilepsy Drugs (AEDs):

Phenytoin:

Carbamazepine:

Valproate:

Phenobarbital or Primidone:

Effects of other Antiepilepsy Drugs (AEDs) on Tiagabine HCl:

Carbamazepine:

Phenytoin:

Phenobarbital (Primidone):







Interaction of Tiagabine HCl with Other Drugs:

Cimetidine:

Theophylline:

Warfarin:

Digoxin:

Ethanol or Triazolam:

Oral Contraceptives:

Antipyrine:

St. John’s wort

Interaction of Tiagabine HCl with Highly Protein Bound Drugs:

In vitro

Treatment with INTUNIV can cause dose-dependent decreases in blood pressure and heart rate. Decreases were less pronounced over time of treatment. Orthostatic hypotension and syncope have been reported .

Measure heart rate and blood pressure prior to initiation of therapy, following dose increases, and periodically while on therapy. Titrate INTUNIV slowly in patients with a history of hypotension, and those with underlying conditions that may be worsened by hypotension and bradycardia; e.g., heart block, bradycardia, cardiovascular disease, vascular disease, cerebrovascular disease, or chronic renal failure. In patients who have a history of syncope or may have a condition that predisposes them to syncope, such as hypotension, orthostatic hypotension, bradycardia, or dehydration, advise patients to avoid becoming dehydrated or overheated. Monitor blood pressure and heart rate, and adjust dosages accordingly in patients treated concomitantly with antihypertensives or other drugs that can reduce blood pressure or heart rate or increase the risk of syncope.

The following serious adverse reactions are described elsewhere in the labeling:

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Reference

This information is obtained from the National Institute of Health's Standard Packaging Label drug database.
"https://dailymed.nlm.nih.gov/dailymed/"

While we update our database periodically, we cannot guarantee it is always updated to the latest version.

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Professional

Clonazepam Description Each single-scored tablet, for oral administration, contains 0.5 mg, 1 mg, or 2 mg Clonazepam, USP, a benzodiazepine. Each tablet also contains corn starch, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and povidone. Clonazepam tablets USP 0.5 mg contain Yellow D&C No. 10 Aluminum Lake. Clonazepam tablets USP 1 mg contain Yellow D&C No. 10 Aluminum Lake, as well as FD&C Blue No. 1 Aluminum Lake. Chemically, Clonazepam, USP is 5-(o-chlorophenyl)-1,3-dihydro-7-nitro-2H-1,4-benzodiazepin-2-one. It is a light yellow crystalline powder. It has the following structural formula: C15H10ClN3O3 M.W. 315.72
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Tips

Tips

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Interactions

Interactions

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