Approved Drug Label (PDF)
6
Adverse Reactions
6.1 Clinical
Trials Experience
Additions
and/or revisions underlined:
…
The
safety of PROVAYBLUE in adults with acquired methemoglobinemia was assessed
in 31 patients who received at least 1 dose of PROVAYBLUE [see Clinical Studies (14)].
Most doses administered were 1 mg/kg (82.9%), but doses from 0.78 mg/kg to 2
mg/kg were administered. All patients received at least one dose of PROVAYBLUE;
two received two doses, and one received three doses. Serious adverse reactions
occurred in 3.2% of patients who received PROVAYBLUE. A serious adverse
reaction of seizure-like phenomenon was reported in one patient.
Adverse reactions (greater than or equal to 2%) included headache, hypokalemia,
diarrhea, hypomagnesemia, myoclonus, nausea, and seizure-like phenomena.
The safety of PROVAYBLUE in pediatric patients with
acquired methemoglobinemia was assessed in two retrospective case series that
included two pediatric patients treated with PROVAYBLUE and 12 treated with
another methylene blue product. The case series included patients in the
following age groups: 3 neonates (<1 month), 4 infants (1 month to <2
years), 4 children (2 years to <12 years), and 3 adolescents (12 years to
<17 years). The safety profile in pediatric patients was similar to that in
adult patients.
8
Use in Specific Populations
8.4 Pediatric Use
Additions and/or revisions underlined:
The safety and effectiveness of PROVAYBLUE for
the treatment of acquired methemoglobinemia have been established in
pediatric patients.
…
8.5
Geriatric Use
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and/or revisions underlined:
Clinical
studies of PROVAYBLUE did not include sufficient numbers of subjects aged 65
and over to determine whether they respond differently from younger subjects.
Other reported clinical experience has not identified differences in responses
between the elderly and younger patients. PROVAYBLUE is known to be
substantially excreted by the kidney, so the risk of adverse reactions to this
drug may be greater in patients with impaired renal function.
Approved Drug Label (PDF)
Boxed Warning
Additions and/or
revisions underlined:
WARNING:
SEROTONIN SYNDROME WITH CONCOMITANT USE OF SEROTONERGIC DRUGS AND OPIOIDS
PROVAYBLUE®
may cause serious or fatal serotonergic syndrome when used in combination with serotonergic
drugs and opioids. Avoid concomitant use of PROVAYBLUE® with selective
serotonin reuptake inhibitors (SSRIs), serotonin norepinephrine reuptake
inhibitors (SNRIs), monoamine oxidase inhibitors (MAOIs) and opioids. [see
Warnings and Precautions (5.1) and Drug Interactions (7.1)]
5
Warnings and Precautions
5.1 Serotonin Syndrome with Concomitant Use of Serotonergic Drugs and
Opioids
Additions and/or
revisions underlined:
The development of serotonin syndrome has been
reported with the use of methylene blue class products. Most reports have been
associated with concomitant use of serotonergic drugs (e.g., selective
serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake
inhibitors (SNRIs), monoamine oxidase inhibitors (MAOIs). Opioids and
dextromethorphan may increase the risk of developing serotonin syndrome
Some of the reported cases were fatal. Symptoms associated with serotonin
syndrome may include the following combination of signs and symptoms: mental
status changes (e.g., agitation, hallucinations, delirium, and coma), autonomic
instability (e.g., tachycardia, labile blood pressure, dizziness, diaphoresis,
flushing, and hyperthermia), neuromuscular symptoms (e.g., tremor, rigidity,
myoclonus, hyperreflexia, and incoordination), seizures, and/or
gastrointestinal symptoms (e.g., nausea, vomiting, diarrhea). Avoid concomitant
use of PROVAYBLUE® with serotonergic drugs and opioids.
…
7
Drug Interactions
Additions and/or revisions underlined:
Clinically
significant drug interactions with PROVAYBLUE® are described below:
The
concomitant use of PROVAYBLUE® with other drugs that affect the
serotonergic neurotransmitter system has resulted in serotonin syndrome.
Although the mechanism is not clearly understood, literature reports suggest
PROVAYBLUE® is a potent reversible inhibitor of monoamine oxidase. Avoid
concomitant use of PROVAYBLUE® with medicinal products that enhance
serotonergic transmission including antidepressants like SSRIs
(selective serotonin reuptake inhibitors), SNRIs (serotonin and
norepinephrine reuptake inhibitors), MAOIs (monoamine oxidase inhibitors),
bupropion, buspirone, clomipramine, mirtazapine, linezolid, opioids, and
dextromethorphan because of the potential for serious CNS reactions,
including potentially fatal serotonin syndrome. If the intravenous use of
PROVAYBLUE® cannot be avoided in patients treated with serotonergic
medicinal products, choose the lowest possible dose and observe the patient closely
for CNS effects for up to 4 hours after administration [see Warning and Precautions (5.1) and Clinical Pharmacology (12.3)].
Approved Drug Label (PDF)
8
Use in Specific Populations
8.6 Renal Impairment
(Additions
and/or revisions underlined)
Methylene blue
concentrations increased in subjects with renal impairment (eGFR 15 to 89
mL/min/1.73m2)
significantly [see Clinical Pharmacology (12.3)]. Adjust PROVAYBLUE® dosage
in patients with moderate or severe renal
impairment (eGFR 15 to 59 mL/min/1.73
m2) [see Dosage and Administration (2.2)].
No dose adjustment is recommended in patients with mild renal impairment (eGFR
60 – 89 mL/min/1.73 m2).