Concomitant use of benzodiazepines and opioids may result in profound sedation, respiratory depression, coma, and death. Reserve concomitant prescribing of these drugs in patients for whom alternative treatment options are inadequate. Limit dosages and durations to the minimum required. Follow patients for signs and symptoms of respiratory depression and sedation.
The use of benzodiazepines, including temazepam, exposes users to risks of abuse, misuse, and addiction, which can lead to overdose or death. Abuse and misuse of benzodiazepines commonly involve concomitant use of other medications, alcohol, and/or illicit substances, which is associated with an increased frequency of serious adverse outcomes. Before prescribing temazepam and throughout treatment, assess each patient's risk for abuse, misuse, and addiction.
The continued use of benzodiazepines, including temazepam, may lead to clinically significant physical dependence. The risks of dependence and withdrawal increase with longer treatment duration and higher daily dose. Abrupt discontinuation or rapid dosage reduction of temazepam after continued use may precipitate acute withdrawal reactions, which can be life-threatening. To reduce the risk of withdrawal reactions, use a gradual taper to discontinue temazepam or reduce the dosage.
Dosage guidance:
Safety: Reduce dose or avoid use in patients receiving opioids or with significant chronic disease (eg, respiratory compromise). Avoid use in patients with a history of substance use, misuse of medications, or depression (Ref).
Insomnia, sleep onset or sleep maintenance (alternative agent):
Note: Due to risk of next day impairment, dependence, and habituation, benzodiazepines should be reserved for patients in whom alternative, safer therapies for insomnia have failed (Ref). When used, limit long-term use (>4 weeks) to cases for which nonpharmacologic treatments are not available or not effective and benefits are felt to outweigh risks (Ref).
Oral: Initial: 7.5 to 15 mg once daily at bedtime, as needed; may increase daily dose to 30 mg at bedtime, if needed, based on response and tolerability.
Discontinuation of therapy: Reduce by 7.5 mg every 1 to 2 weeks until lowest available dose is reached, then discontinue. Patients on long-term therapy or in whom discontinuation has previously failed may benefit from a slower taper in conjunction with cognitive behavioral therapy for insomnia (Ref).
Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.
There are no dosage adjustments provided in the manufacturer's labeling.
There are no dosage adjustments provided in the manufacturer's labeling.
Note: Avoid use (Ref).
Insomnia: Oral: Initial: 7.5 mg once daily, as needed, at bedtime in elderly or debilitated patients.
Discontinuation of therapy: Refer to adult dosing.
The following adverse drug reactions and incidences are derived from product labeling unless otherwise specified.
1% to 10%:
Central nervous system: Drowsiness (9%), dizziness (5%), lethargy (5%), hangover effect (3%), euphoria (2%), anxiety, confusion, dysarthria, fatigue, headache, vertigo
Dermatologic: Diaphoresis, skin rash
Endocrine & metabolic: Decreased libido
Gastrointestinal: Diarrhea (2%)
Neuromuscular & skeletal: Weakness
Ophthalmic: Blurred vision
<1%, postmarketing, and/or case reports: Abnormal behavior, aggressive behavior, agitation, amnesia, anaphylaxis, angioedema, anorexia, ataxia, back pain, burning sensation of eyes, depersonalization, drug dependence, dyspnea, equilibrium disturbance, extroversion, hallucination, hematologic disease, hyperhidrosis, hyporeflexia, increased dream activity, menstrual disease, nausea, nystagmus, palpitations, paradoxical reaction, pharyngeal edema, sleep disorder (sleep-driving, cooking or eating food, making phone calls), tremor, vomiting
Canadian labeling: Additional contraindications (not in US labeling): Hypersensitivity to temazepam or any component of the formulation, or to other benzodiazepines; myasthenia gravis; sleep apnea syndrome; prior paradoxical reactions to ethanol and/or sedative medications
Concerns related to adverse effects:
• Anterograde amnesia: Benzodiazepines have been associated with anterograde amnesia (Nelson 1999).
• CNS depression: May cause CNS depression, which may impair physical or mental abilities; patients must be cautioned about performing tasks which require mental alertness (eg, operating machinery or driving).
• Hypersensitivity reactions: The use of hypnotic/sedative agents for sleep has been associated with hypersensitivity reactions including anaphylaxis as well as angioedema; patients developing angioedema should not be rechallenged.
• Paradoxical reactions: Paradoxical reactions, including hyperactive or aggressive behavior, have been reported with benzodiazepines; risk may be increased in adolescent/pediatric patients, geriatric patients, or patients with a history of alcohol use disorder or psychiatric/personality disorders (Mancuso 2004).
• Sleep-related activities: Hazardous sleep-related activities such as sleep-driving, cooking and eating food, and making phone calls while asleep have also been noted with benzodiazepines (Dolder 2008).
Disease-related concerns:
• Depression: Avoid use in patients with depression because of concerns about worsening mood symptoms, particularly if suicidal risk may be present, except for acute or emergency situations (eg, acute agitation, status epilepticus) (Craske 2022).
• Hepatic impairment: Use with caution in patients with hepatic impairment; less likely to be affected in patients with hepatic dysfunction compared to other benzodiazepines.
• Renal impairment: Use with caution in patients with renal impairment.
• Respiratory disease: Reduce dose or avoid use in patients with respiratory disease, including chronic obstructive pulmonary disease or sleep apnea. Benzodiazepines may cause significant respiratory depression.
• Sleep apnea: Benzodiazepines can suppress respiratory drive in patients with obstructive sleep apnea; use caution when prescribing for insomnia in this population (Webster 2020). Use in patients with sleep apnea is contraindicated in the labeling of some countries (Restoril Canadian product monograph 2021).
Special populations:
• Debilitated patients: Use with caution in debilitated patients.
• Older adult patients: Older adult patients may be at an increased risk of death with use; risk has been found highest within the first 4 months of use in older adult dementia patients (Jennum 2015; Saarelainen 2018).
• Fall risk: Use with extreme caution in patients who are at risk of falls; benzodiazepines have been associated with falls and traumatic injury (Nelson 1999).
Other warnings/precautions:
• Abuse, misuse, and substance use disorder: Counsel patients at increased risk on proper use and monitoring for signs and symptoms of abuse, misuse, and substance use disorder. Institute early treatment or refer patients in whom substance use disorder is suspected. Limit dosages and durations to the minimum required.
• Appropriate use: Does not have analgesic, antidepressant, or antipsychotic properties.
• Dependence and withdrawal reactions: Some patients may develop a protracted withdrawal syndrome lasting >12 months; may be difficult to differentiate withdrawal symptoms from reemergence or continuation of symptoms for which benzodiazepines were prescribed. Flumazenil may cause withdrawal in patients receiving long-term benzodiazepine therapy.
• Hypnotic: Appropriate use: Should be used only after evaluation of potential causes of sleep disturbance. Failure of sleep disturbance to resolve after 7-10 days may indicate psychiatric or medical illness. A worsening of insomnia or the emergence of new abnormalities of thought or behavior may represent unrecognized psychiatric or medical illness and requires immediate and careful evaluation.
• Rebound insomnia: Following withdrawal of therapy, transient insomnia may recur accompanied by other reactions, including restlessness, anxiety, and mood changes (Bélanger 2009).
• Tolerance: Temazepam is a short half-life benzodiazepine. Duration of action after a single dose is determined by redistribution rather than metabolism. Tolerance develops to the hypnotic effects (Vinkers 2012). Chronic use of this agent may increase the perioperative benzodiazepine dose needed to achieve desired effect.
• Withdrawal: A longer sleep-onset latency and increased awakenings during sleep may occur for 1 to 2 days following the discontinuation of GABA-mediated (GABAergic) medications. A more severe withdrawal syndrome may rarely occur following abrupt discontinuation or large decreases in dose after sustained use (>10 days), and is characterized by new-onset agitation, ataxia, depersonalization, dizziness, dysphoria, fatigue, headache, hypersensitivity to stimuli, irritability, muscle cramps or pain, nausea, sweating, twitching, vomiting, and weakness. This withdrawal syndrome generally resolves within weeks or upon reinitiation of the GABAergic medication. Intermittent dosing may reduce the risk of withdrawal symptoms (BAP [Wilson 2019]).
Excipient information presented when available (limited, particularly for generics); consult specific product labeling.
Capsule, Oral:
Restoril: 7.5 mg, 15 mg, 22.5 mg, 30 mg [contains fd&c blue #1 (brilliant blue)]
Generic: 7.5 mg, 15 mg, 22.5 mg, 30 mg
Yes
Capsules (Restoril Oral)
7.5 mg (per each): $35.40
15 mg (per each): $37.47
22.5 mg (per each): $38.53
30 mg (per each): $39.61
Capsules (Temazepam Oral)
7.5 mg (per each): $9.94 - $9.99
15 mg (per each): $0.73 - $0.81
22.5 mg (per each): $9.94 - $9.98
30 mg (per each): $0.88 - $1.00
Disclaimer: A representative AWP (Average Wholesale Price) price or price range is provided as reference price only. A range is provided when more than one manufacturer's AWP price is available and uses the low and high price reported by the manufacturers to determine the range. The pricing data should be used for benchmarking purposes only, and as such should not be used alone to set or adjudicate any prices for reimbursement or purchasing functions or considered to be an exact price for a single product and/or manufacturer. Medi-Span expressly disclaims all warranties of any kind or nature, whether express or implied, and assumes no liability with respect to accuracy of price or price range data published in its solutions. In no event shall Medi-Span be liable for special, indirect, incidental, or consequential damages arising from use of price or price range data. Pricing data is updated monthly.
Excipient information presented when available (limited, particularly for generics); consult specific product labeling.
Capsule, Oral:
Restoril: 15 mg, 30 mg [contains fd&c blue #1 (brilliant blue), fd&c red #40 (allura red ac dye)]
Generic: 15 mg, 30 mg
C-IV
Hazardous agent (NIOSH 2016 [group 3]).
Use appropriate precautions for receiving, handling, administration, and disposal. Gloves (single) should be worn during receiving, unpacking, and placing in storage. NIOSH recommends single gloving for administration of intact tablets or capsules (NIOSH 2016). Assess risk to determine appropriate containment strategy (USP-NF 2017).
An FDA-approved patient medication guide, which is available with the product information and at https://www.accessdata.fda.gov/drugsatfda_docs/label/2023/018163s071lbl.pdf#page=17, must be dispensed with this medication.
Insomnia, sleep onset or sleep maintenance: Short-term treatment of insomnia.
Temazepam may be confused with flurazepam, LORazepam, tamoxifen
Restoril may be confused with Relistor, Resotran, RisperDAL, Vistaril, Zestril
The Institute for Safe Medication Practices (ISMP) includes this medication among its list of drugs that have a heightened risk of causing significant patient harm when used in error.
Beers Criteria: Temazepam is identified in the Beers Criteria as a potentially inappropriate medication to be avoided in patients 65 years and older due to risk of abuse, misuse, physical dependence, and addiction. In addition, older adults have increased risk of impaired cognition, delirium, falls, fractures, and motor vehicle accidents with benzodiazepine use. However, benzodiazepines may be appropriate in elderly patients when used for seizure disorders, rapid eye movement sleep behavior disorder, benzodiazepine or ethanol withdrawal, severe generalized anxiety disorder, or periprocedural anesthesia (Beers Criteria [AGS 2023]).
Substrate of CYP3A4 (minor); Note: Assignment of Major/Minor substrate status based on clinically relevant drug interaction potential
Note: Interacting drugs may not be individually listed below if they are part of a group interaction (eg, individual drugs within “CYP3A4 Inducers [Strong]” are NOT listed). For a complete list of drug interactions by individual drug name and detailed management recommendations, use the Lexicomp drug interactions program by clicking on the “Launch drug interactions program” link above.
Alcohol (Ethyl): CNS Depressants may enhance the CNS depressant effect of Alcohol (Ethyl). Risk C: Monitor therapy
Alizapride: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Azelastine (Nasal): May enhance the CNS depressant effect of CNS Depressants. Risk X: Avoid combination
Blonanserin: CNS Depressants may enhance the CNS depressant effect of Blonanserin. Management: Use caution if coadministering blonanserin and CNS depressants; dose reduction of the other CNS depressant may be required. Strong CNS depressants should not be coadministered with blonanserin. Risk D: Consider therapy modification
Brexanolone: CNS Depressants may enhance the CNS depressant effect of Brexanolone. Risk C: Monitor therapy
Brimonidine (Topical): May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Bromopride: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Bromperidol: May enhance the CNS depressant effect of CNS Depressants. Risk X: Avoid combination
Buprenorphine: CNS Depressants may enhance the CNS depressant effect of Buprenorphine. Management: Consider reduced doses of other CNS depressants, and avoiding such drugs in patients at high risk of buprenorphine overuse/self-injection. Initiate buprenorphine at lower doses in patients already receiving CNS depressants. Risk D: Consider therapy modification
Cannabinoid-Containing Products: CNS Depressants may enhance the CNS depressant effect of Cannabinoid-Containing Products. Risk C: Monitor therapy
Chlormethiazole: May enhance the CNS depressant effect of CNS Depressants. Management: Monitor closely for evidence of excessive CNS depression. The chlormethiazole labeling states that an appropriately reduced dose should be used if such a combination must be used. Risk D: Consider therapy modification
Chlorphenesin Carbamate: May enhance the adverse/toxic effect of CNS Depressants. Risk C: Monitor therapy
CloZAPine: Benzodiazepines may enhance the adverse/toxic effect of CloZAPine. Management: Consider decreasing the dose of (or possibly discontinuing) benzodiazepines prior to initiating clozapine. Monitor for respiratory depression, hypotension, and other toxicities if these agents are combined. Risk D: Consider therapy modification
CNS Depressants: May enhance the adverse/toxic effect of other CNS Depressants. Risk C: Monitor therapy
Daridorexant: May enhance the CNS depressant effect of CNS Depressants. Management: Dose reduction of daridorexant and/or any other CNS depressant may be necessary. Use of daridorexant with alcohol is not recommended, and the use of daridorexant with any other drug to treat insomnia is not recommended. Risk D: Consider therapy modification
DexmedeTOMIDine: CNS Depressants may enhance the CNS depressant effect of DexmedeTOMIDine. Management: Monitor for increased CNS depression during coadministration of dexmedetomidine and CNS depressants, and consider dose reductions of either agent to avoid excessive CNS depression. Risk D: Consider therapy modification
Difelikefalin: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Dimethindene (Topical): May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Doxylamine: CNS Depressants may enhance the CNS depressant effect of Doxylamine. Risk C: Monitor therapy
DroPERidol: May enhance the CNS depressant effect of CNS Depressants. Management: Consider dose reductions of droperidol or of other CNS agents (eg, opioids, barbiturates) with concomitant use. Risk D: Consider therapy modification
Esketamine: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Flunarizine: CNS Depressants may enhance the CNS depressant effect of Flunarizine. Risk X: Avoid combination
Flunitrazepam: CNS Depressants may enhance the CNS depressant effect of Flunitrazepam. Management: Reduce the dose of CNS depressants when combined with flunitrazepam and monitor patients for evidence of CNS depression (eg, sedation, respiratory depression). Use non-CNS depressant alternatives when available. Risk D: Consider therapy modification
HydrOXYzine: May enhance the CNS depressant effect of CNS Depressants. Management: Consider a decrease in the CNS depressant dose, as appropriate, when used together with hydroxyzine. Increase monitoring of signs/symptoms of CNS depression in any patient receiving hydroxyzine together with another CNS depressant. Risk D: Consider therapy modification
Ilaprazole: May increase the serum concentration of Benzodiazepines. Risk C: Monitor therapy
Ixabepilone: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Kava Kava: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Kratom: May enhance the CNS depressant effect of CNS Depressants. Risk X: Avoid combination
Lemborexant: May enhance the CNS depressant effect of CNS Depressants. Management: Dosage adjustments of lemborexant and of concomitant CNS depressants may be necessary when administered together because of potentially additive CNS depressant effects. Close monitoring for CNS depressant effects is necessary. Risk D: Consider therapy modification
Lisuride: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Lofexidine: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Magnesium Sulfate: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Melatonin: May enhance the sedative effect of Benzodiazepines. Risk C: Monitor therapy
Methadone: Benzodiazepines may enhance the CNS depressant effect of Methadone. Management: Clinicians should generally avoid concurrent use of methadone and benzodiazepines when possible; any combined use should be undertaken with extra caution. Risk D: Consider therapy modification
Methotrimeprazine: CNS Depressants may enhance the CNS depressant effect of Methotrimeprazine. Methotrimeprazine may enhance the CNS depressant effect of CNS Depressants. Management: Reduce the usual dose of CNS depressants by 50% if starting methotrimeprazine until the dose of methotrimeprazine is stable. Monitor patient closely for evidence of CNS depression. Risk D: Consider therapy modification
Metoclopramide: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
MetyroSINE: CNS Depressants may enhance the sedative effect of MetyroSINE. Risk C: Monitor therapy
Minocycline (Systemic): May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Nabilone: May enhance the CNS depressant effect of CNS Depressants. Risk X: Avoid combination
OLANZapine: Benzodiazepines may enhance the adverse/toxic effect of OLANZapine. Management: Monitor closely for hypotension, respiratory or central nervous system depression, and bradycardia if olanzapine is combined with benzodiazepines. Use of parenteral benzodiazepines with IM olanzapine is not recommended. Risk C: Monitor therapy
Olopatadine (Nasal): May enhance the CNS depressant effect of CNS Depressants. Risk X: Avoid combination
Opioid Agonists: CNS Depressants may enhance the CNS depressant effect of Opioid Agonists. Management: Avoid concomitant use of opioid agonists and benzodiazepines or other CNS depressants when possible. These agents should only be combined if alternative treatment options are inadequate. If combined, limit the dosages and duration of each drug. Risk D: Consider therapy modification
Orphenadrine: CNS Depressants may enhance the CNS depressant effect of Orphenadrine. Risk X: Avoid combination
Oxomemazine: May enhance the CNS depressant effect of CNS Depressants. Risk X: Avoid combination
Oxybate Salt Products: Benzodiazepines may enhance the CNS depressant effect of Oxybate Salt Products. Risk X: Avoid combination
OxyCODONE: CNS Depressants may enhance the CNS depressant effect of OxyCODONE. Management: Avoid concomitant use of oxycodone and benzodiazepines or other CNS depressants when possible. These agents should only be combined if alternative treatment options are inadequate. If combined, limit the dosages and duration of each drug. Risk D: Consider therapy modification
Paraldehyde: CNS Depressants may enhance the CNS depressant effect of Paraldehyde. Risk X: Avoid combination
Perampanel: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Piribedil: CNS Depressants may enhance the CNS depressant effect of Piribedil. Risk C: Monitor therapy
Pramipexole: CNS Depressants may enhance the sedative effect of Pramipexole. Risk C: Monitor therapy
Procarbazine: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Ropeginterferon Alfa-2b: CNS Depressants may enhance the adverse/toxic effect of Ropeginterferon Alfa-2b. Specifically, the risk of neuropsychiatric adverse effects may be increased. Management: Avoid coadministration of ropeginterferon alfa-2b and other CNS depressants. If this combination cannot be avoided, monitor patients for neuropsychiatric adverse effects (eg, depression, suicidal ideation, aggression, mania). Risk D: Consider therapy modification
ROPINIRole: CNS Depressants may enhance the sedative effect of ROPINIRole. Risk C: Monitor therapy
Rotigotine: CNS Depressants may enhance the sedative effect of Rotigotine. Risk C: Monitor therapy
Rufinamide: May enhance the adverse/toxic effect of CNS Depressants. Specifically, sleepiness and dizziness may be enhanced. Risk C: Monitor therapy
Suvorexant: CNS Depressants may enhance the CNS depressant effect of Suvorexant. Management: Dose reduction of suvorexant and/or any other CNS depressant may be necessary. Use of suvorexant with alcohol is not recommended, and the use of suvorexant with any other drug to treat insomnia is not recommended. Risk D: Consider therapy modification
Teduglutide: May increase the serum concentration of Benzodiazepines. Risk C: Monitor therapy
Thalidomide: CNS Depressants may enhance the CNS depressant effect of Thalidomide. Risk X: Avoid combination
Theophylline Derivatives: May diminish the therapeutic effect of Benzodiazepines. Risk C: Monitor therapy
Trimeprazine: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Valerian: May enhance the CNS depressant effect of CNS Depressants. Risk C: Monitor therapy
Yohimbine: May diminish the therapeutic effect of Antianxiety Agents. Risk C: Monitor therapy
Zolpidem: CNS Depressants may enhance the CNS depressant effect of Zolpidem. Management: Reduce the Intermezzo brand sublingual zolpidem adult dose to 1.75 mg for men who are also receiving other CNS depressants. No such dose change is recommended for women. Avoid use with other CNS depressants at bedtime; avoid use with alcohol. Risk D: Consider therapy modification
Zuranolone: May enhance the CNS depressant effect of CNS Depressants. Management: Consider alternatives to the use of zuranolone with other CNS depressants or alcohol. If combined, consider a zuranolone dose reduction and monitor patients closely for increased CNS depressant effects. Risk D: Consider therapy modification
In utero exposure to benzodiazepines has the potential to cause harm to the fetus. Teratogenic effects have been observed in some studies; however, a clear association has not been reported and additional data are needed (Bellantuono 2013; Freeman 2018; Grigoriadis 2019; Noh 2022; Szpunar 2022; Tinker 2019; Wikner 2007). Exposure to a benzodiazepine late in pregnancy may cause neonatal sedation (hypotonia, lethargy, respiratory depression) and/or symptoms of neonatal withdrawal (feeding difficulties, hyperreflexia, inconsolable crying, irritability, restlessness, tremors). Data related to long-term effects on neurodevelopment are inconclusive (Chen 2022; Radojčić 2017; Sundbakk 2022; Wang 2022). Newborns exposed to temazepam in utero should be monitored for feeding problems, respiratory depression, sedation, and withdrawal.
Treatment for insomnia in pregnant patients should be individualized. Untreated insomnia may lead to adverse pregnancy outcomes. Although recommendations vary, nonpharmacologic therapy is preferred as an initial treatment of insomnia during pregnancy (BAP [McAllister-Williams 2017]; BAP [Wilson 2019]; Palagini 2022).
Data collection to monitor pregnancy and infant outcomes following exposure to temazepam is ongoing. Health care providers are encouraged to enroll patients exposed to temazepam during pregnancy in the National Pregnancy Registry for Psychiatric Medications (866-961-2388).
Temazepam is present in breast milk.
Data are available from a study conducted in 10 breastfeeding patients, <2 weeks postpartum. All patients were given temazepam 10 to 20 mg at bedtime for ≥2 nights. Samples were obtained 10 to 21 hours after a dose. Temazepam was not found in the breast milk of 9 mothers (maternal serum concentrations 8 to 59 mcg/L). Temazepam was detected in the milk of 1 patient whose serum concentration was 234 mcg/mL at ~14 hours after the dose; milk concentrations were 28 mcg/L (pre-feed) and 26 mcg/L (post-feed). The oxazepam metabolite concentrations were 9 mcg/mL in the maternal serum and below the limit of detection in breast milk. Adverse events were not noted in any breastfeeding infants (Lebedevs 1992).
Drowsiness, lethargy, or weight loss in breastfeeding infants have been observed in case reports following maternal use of some benzodiazepines (Iqbal 2002).
Breastfeeding during benzodiazepine therapy is not recommended due to the potential for drowsiness in the breastfeeding infant (Larsen 2015). According to the manufacturer, the decision to breastfeed during therapy should consider the risk of infant exposure, the benefits of breastfeeding to the infant, and the benefits of treatment to the mother. Infants exposed to temazepam via breast milk should be monitored for feeding problems, respiratory depression, and poor weight gain.
Respiratory and cardiovascular status
Short-to-intermediate–acting benzodiazepine (based on half-life) (Griffin 2013). Binds to stereospecific benzodiazepine receptors on the postsynaptic GABA neuron at several sites within the central nervous system, including the limbic system, reticular formation. Enhancement of the inhibitory effect of GABA on neuronal excitability results by increased neuronal membrane permeability to chloride ions. This shift in chloride ions results in hyperpolarization (a less excitable state) and stabilization. Benzodiazepine receptors and effects appear to be linked to the GABA-A receptors. Benzodiazepines do not bind to GABA-B receptors.
Duration of action: Classified as a short-to-intermediate-acting benzodiazepine; classification based on benzodiazepines with half-life of 1 to 12 hours as short-acting and with half-life of 12 to 40 hours as intermediate-acting (Griffin 2013).
Distribution: Vd: 1.4 L/kg (Divoll, 1981)
Protein binding: 96%
Metabolism: Hepatic; undergoes phase II metabolism
Half-life elimination: 3.5-18.4 hours
Time to peak, serum: 1.2-1.6 hours
Excretion: Urine (80% to 90% as inactive metabolites)
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