PAXIL CR

PAXIL CR- paroxetine hydrochloride tablet, film coated, extended release
Apotex Corp

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WARNING: SUICIDAL THOUGHTS AND BEHAVIORS

Antidepressants increased the risk of suicidal thoughts and behaviors in pediatric and young adult patients in short-term studies. Closely monitor all antidepressant-treated patients for clinical worsening, and for emergence of suicidal thoughts and behaviors [See Warnings and Precautions ( 5.1 )] PAXIL CR is not approved for use in pediatric patients [see Use in Specific Populations (8.4)].

1 INDICATIONS AND USAGE

PAXIL CR is indicated in adults for the treatment of:

  • Major depressive disorder (MDD)
  • Panic disorder (PD)
  • Social anxiety disorder (SAD)
  • Premenstrual dysphoric disorder (PMDD)

2 DOSAGE AND ADMINISTRATION

2.1 Important Administration Instructions

Administer PAXIL CR as a single daily dose in the morning, with or without food. Swallow tablets whole and do not chew or crush.

2.2 Dosage in Patients with Major Depressive Disorder, Panic Disorder, and Social Anxiety Disorder

The recommended initial dosage and maximum dosage of PAXIL CR in patients with MDD, PD, and SAD are presented in Table 1.

In patients with an inadequate response, dosage may be increased in increments of 12.5 mg per day at intervals of at least 1 week, depending on tolerability.

Table 1: Recommended Daily Dosage of PAXIL CR in Patients with MDD, PD, and SAD

Indication Starting Dose Maximum Dose
MDD 25 mg 62.5 mg
PD 12.5 mg 75 mg
SAD 12.5 mg 37.5 mg

2.3 Dosage in Patients with Premenstrual Dysphoric Disorder

The recommended starting dosage in women with PMDD is 12.5 mg per day. PAXIL CR may be administered either continuously (every day throughout the menstrual cycle) or intermittently (only during the luteal phase of the menstrual cycle, i.e., starting the daily dosage 14 days prior to the anticipated onset of menstruation and continuing through the onset of menses). Intermittent dosing is repeated with each new cycle.

In patients with an inadequate response, the dosage may be increased to the maximum recommended dosage of 25 mg per day, depending on tolerability. Institute dosage adjustments at intervals of at least 1 week.

2.4 Screen for Bipolar Disorder Prior to Starting Paxil CR

Prior to initiating treatment with Paxil CR or another antidepressant, screen patients for a personal or family history of bipolar disorder, mania, or hypomania [see Warnings and Precautions (5.6)].

2.5 Dosage Modifications for Elderly Patients, Patients with Severe Renal Impairment and Patients with Severe Hepatic Impairment

The recommended initial dose of PAXIL CR is 12.5 mg per day for elderly patients, patients with severe renal impairment, and patients with severe hepatic impairment. Reduce initial dose and increase up-titration intervals if necessary. Dosage should not exceed 50 mg per day for MDD or PD and should not exceed 37.5 mg per day for SAD [see Use in Specific Populations (8.5, 8.6)].

2.6 Switching Patients to or from a Monoamine Oxidase Inhibitor Antidepressant

At least 14 days must elapse between discontinuation of an monoamine oxidase inhibitor (MAOI) antidepressant and initiation of PAXIL CR. In addition, at least 14 days must elapse after stopping PAXIL CR before starting an MAOI antidepressant [see Contraindications (4), Warnings and Precautions (5.2)].

2.7 Discontinuation of Treatment with Paxil CR

Adverse reactions may occur upon discontinuation of PAXIL CR [see Warnings and Precautions (5.7)]. Gradually reduce the dosage rather than stopping Paxil CR abruptly whenever possible.

3 DOSAGE FORMS AND STRENGTHS

PAXIL CR is supplied as a round extended-release tablet as follows:

12.5-mg yellow, round tablets, (One face is plain and the other is engraved with “12.5”)

25-mg pink, round tablets, (One face is plain and the other is engraved with “25”)

37.5 mg blue, round tablets, (One face is plain and the other is engraved with “37.5”)

4 CONTRAINDICATIONS

PAXIL CR is contraindicated in patients:

  • Taking, or within 14 days of stopping, MAOIs (including the MAOIs linezolid and intravenous methylene blue) because of an increased risk of serotonin syndrome [See Warnings and Precautions (5.2), Drug Interactions (7)].
  • Taking thioridazine because of risk of QT prolongation [see Warnings and Precautions (5.3), Drug Interactions (7)].
  • Taking pimozide because of risk of QT prolongation [see Warnings and Precautions (5.3), Drug Interactions (7)].
  • With known hypersensitivity (e.g., anaphylaxis, angioedema, Stevens-Johnson syndrome) to paroxetine or to any of the inactive ingredients in PAXIL CR [see Adverse Reactions (6.1, 6.2)].

5 WARNINGS AND PRECAUTIONS

5.1 Suicidal Thoughts and Behaviors in Adolescents and Young Adults

In pooled analyses of placebo-controlled trials of antidepressant drugs (SSRIs and other antidepressant classes) that included approximately 77,000 adult patients and 4,500 pediatric patients, the incidence of suicidal thoughts and behaviors in antidepressant-treated patients age 24 years and younger was greater than in placebo-treated patients. There was considerable variation in risk of suicidal thoughts and behaviors among drugs, but there was an increased risk identified in young patients for most drugs studied. There were differences in absolute risk of suicidal thoughts and behaviors across the different indications, with the highest incidence in patients with MDD. The drug-placebo differences in the number of cases of suicidal thoughts and behaviors per 1000 patients treated are provided in Table 2.

Table 2: Risk Differences of the Number of Patients of Suicidal Thoughts and Behaviors in the Pooled Placebo-Controlled Trials of Antidepressants in Pediatric and Adult Patients

Age Range

Drug-Placebo Difference in Number of Patients of Suicidal Thoughts and Behaviors per 1,000 Patients Treated

Increases Compared to Placebo

<18 years old

14 additional patients

18-24 years old

5 additional patients

Decreases Compared to Placebo

25-64 years old

1 fewer patient

≥65 years old

6 fewer patients

It is unknown whether the risk of suicidal thoughts and behaviors in children, adolescents, and young adults extends to longer-term use, i.e., beyond four months. However, there is substantial evidence from placebo-controlled maintenance trials in adults with MDD that antidepressants delay the recurrence of depression and that depression itself is a risk factor for suicidal thoughts and behaviors.

Monitor all antidepressant-treated patients for any indication for clinical worsening and emergence of suicidal thoughts and behaviors, especially during the initial few months of drug therapy, and at times of dosage changes. Counsel family members or caregivers of patients to monitor for changes in behavior and to alert the healthcare provider. Consider changing the therapeutic regimen, including possibly discontinuing PAXIL CR, in patients whose depression is persistently worse, or who are experiencing emergent suicidal thoughts or behaviors.

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