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7 Interactions found for:

trazodone and Lamictal
Interactions Summary
  • 3 Major
  • 3 Moderate
  • 1 Minor
  • trazodone
  • Lamictal

Drug Interactions

Moderate
Trazodone + Lamictal

The following applies to the ingredients: Trazodone and Lamotrigine (found in Lamictal)

Using traZODone together with lamoTRIgine may increase side effects such as dizziness, drowsiness, confusion, and difficulty concentrating. Some people, especially the elderly, may also experience impairment in thinking, judgment, and motor coordination. You should avoid or limit the use of alcohol while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Drug and Food Interactions

Moderate
Trazodone + Food

The following applies to the ingredients: Trazodone

Alcohol can increase the nervous system side effects of traZODone such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with traZODone. Do not use more than the recommended dose of traZODone, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.

Moderate
Lamictal + Food

The following applies to the ingredients: Lamotrigine (found in Lamictal)

Alcohol can increase the nervous system side effects of lamoTRIgine such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with lamoTRIgine. Do not use more than the recommended dose of lamoTRIgine, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.

Drug and Pregnancy Interactions

The following applies to the ingredients: Trazodone

Professional Content

This drug should be used during pregnancy only if the benefit outweighs the risk to the fetus.
-Some experts recommend: Use with caution; use should be avoided during the first trimester of pregnancy.

US FDA pregnancy category: C

Comment: When this drug is used until delivery, newborns should be monitored for the occurrence of withdrawal symptoms.

Animal studies have revealed evidence of increased fetal resorption and congenital anomalies in adolescents. Other animal models have failed to reveal evidence of adverse effects on embryofetal development, parturition, or postnatal development when given at therapeutic doses. There are no controlled data in human pregnancy.

US FDA pregnancy category C: Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.

References

  1. "Product Information. Desyrel (trazodone)." Bristol-Myers Squibb PROD (2001):
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0

The following applies to the ingredients: Lamotrigine (found in Lamictal)

Professional Content

Benefit should outweigh risk

AU TGA pregnancy category: D
US FDA pregnancy category: Not assigned

Risk Summary: Several prospective pregnancy exposure registries and epidemiological studies have not detected an increased frequency of major congenital malformations or a consistent pattern of malformations among women exposed to lamotrigine compared with the general population; animal studies have shown developmental toxicities at doses administered clinically.

Comments:
-Women with epilepsy who are planning to become pregnant should receive pre-pregnancy counseling; folate supplementation should be considered before conception and for the first 12 weeks of pregnancy.
-Abrupt discontinuation of anti-epileptic therapy during pregnancy is not advised as this may lead to breakthrough seizures in mother and fetus.
-Physiologic changes during pregnancy may affect drug concentrations and/or therapeutic effect; dose adjustments may be necessary to maintain clinical response.
-Women should be advised to notify their healthcare provider if they plan to start or stop oral contraceptive use or other female hormonal preparations as this may significantly affect lamotrigine drug concentrations.
-A pregnancy registry is available to provide information on the effects of in utero exposure; pregnant patients should be encouraged to enroll: North American AED Pregnancy Registry: US toll free number: 1-888-233-2334; Website: http://www.aedpregnancyregistry.org/

Animal studies have shown developmental toxicity at doses estimated to be lower than those used clinically. Pregnant rats administered 3 doses (5, 10 or 20 mg/kg) during the latter part of gestation had increased offspring mortality (including stillbirths) at all doses. The lowest effect dose for peri/postnatal developmental toxicity was less than the human dose of 400 mg/day on mg/m2 basis. Maternal toxicity was observed at the 2 highest doses. Studies in rats have shown a decrease in folic acid during pregnancy, and since this drug is a weak inhibitor of dihydrofolate reductase, there is a theoretical risk of malformation due to folate deficiency. Anti-epileptic drugs should generally be continued during pregnancy with the goal of monotherapy at the lowest effective dose, however, the risk to the mother and fetus of uncontrolled epilepsy should be considered when deciding on treatment options. Data from several international pregnancy registries have not shown an increased risk for malformations overall. The frequency of major congenital malformations was similar to estimates from the general population. The North American Antiepileptic Drug Pregnancy (NAAED) Registry has reported an increased risk of isolated oral clefts, although this finding has not been observed in other large international pregnancy registries. Several meta-analyses have not reported an increased risk of major congenital malformations following lamotrigine exposure in pregnancy compared with healthy and disease-matched controls. No patterns of specific malformation types were observed. As with other antiepileptic drugs, decreased lamotrigine concentrations have been reported during pregnancy with a return to pre-pregnancy concentrations after delivery. Appropriate clinical management should include monitoring drug concentrations and adjusting doses as indicated. There are no adequate and well-controlled studies in pregnant women.

AU TGA pregnancy category D: Drugs which have caused, are suspected to have caused or may be expected to cause, an increased incidence of human fetal malformations or irreversible damage. These drugs may also have adverse pharmacological effects. Accompanying texts should be consulted for further details.

US FDA pregnancy category Not Assigned: The US FDA has amended the pregnancy labeling rule for prescription drug products to require labeling that includes a summary of risk, a discussion of the data supporting that summary, and relevant information to help health care providers make prescribing decisions and counsel women about the use of drugs during pregnancy. Pregnancy categories A, B, C, D, and X are being phased out.

References

  1. "Product Information. Lamictal (lamotrigine)." Glaxo Wellcome PROD (2001):
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  3. Pharmaceutical Society of Australia "APPGuide online. Australian prescription products guide online. http://www.appco.com.au/appguide/default.asp" (2006):
  4. Cerner Multum, Inc. "Australian Product Information." O 0
  5. "Product Information. LaMICtal XR (lamotrigine)." GlaxoSmithKline (2018):

Drug and Breastfeeding Interactions

The following applies to the ingredients: Trazodone

Professional Content

A decision should be made to discontinue breastfeeding or discontinue the drug, taking into account the importance of the drug to the mother.
-Some experts recommend: Caution is recommended.

Excreted into human milk: Yes

Comments:
-The effects in the nursing infant are unknown.
-The American Academy of Pediatrics considers this agent a drug for which the effect on nursing infants is unknown but may be of concern.

References

  1. "Product Information. Desyrel (trazodone)." Bristol-Myers Squibb PROD (2001):
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  3. Briggs GG, Freeman RK. "Drugs in Pregnancy and Lactation." Philadelphia, PA: Wolters Kluwer Health (2015):

The following applies to the ingredients: Lamotrigine (found in Lamictal)

Professional Content

Benefit should outweigh risk

Excreted into human milk: Yes

Comments:
-Adverse reactions have occasionally been reported in breastfed babies, but long-term exposure does not appear to affect infant growth and development.
-Breastfed infants should be carefully monitored for side effects; serum levels may be measured to rule out toxicity.
-If infant rash occurs, breastfeeding should be discontinued until cause can be established.

Drug concentrations in human milk may be as high as 50% of the maternal serum levels. Neonates are at risk for high plasma levels due to plasma protein binding being relatively low and decreased ability to clear drug (immaturity of glucuronidation capacity). Additionally, similar to other antiepileptic drugs, the maternal dose should generally be reduced after delivery to the pre-pregnancy dosage, and failure to reduce dose may lead to higher milk concentrations. Apnea, rash, drowsiness, and poor sucking have been reported in breastfed infants. If an adverse event occurs, a serum level can be measured to rule out toxicity. Consider monitoring platelet counts and liver function. Breastfeeding should be discontinued in infants with lamotrigine toxicity

References

  1. "Product Information. Lamictal (lamotrigine)." Glaxo Wellcome PROD (2001):
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  3. Pharmaceutical Society of Australia "APPGuide online. Australian prescription products guide online. http://www.appco.com.au/appguide/default.asp" (2006):
  4. United States National Library of Medicine "Toxnet. Toxicology Data Network. http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT" (2013):
  5. "Product Information. LaMICtal XR (lamotrigine)." GlaxoSmithKline (2018):

Therapeutic Duplication Warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

Switch to: Professional Interactions

Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.

Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

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