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7 Interactions found for:

Prozac and trazodone
Interactions Summary
  • 5 Major
  • 2 Moderate
  • 0 Minor
  • Prozac
  • trazodone

Drug Interactions

Major
Prozac + Trazodone

The following applies to the ingredients: Fluoxetine (found in Prozac) and Trazodone

Using FLUoxetine together with traZODone can increase the risk of a rare but serious condition called the serotonin syndrome, which may include symptoms such as confusion, hallucination, seizure, extreme changes in blood pressure, increased heart rate, fever, excessive sweating, shivering or shaking, blurred vision, muscle spasm or stiffness, tremor, incoordination, stomach cramp, nausea, vomiting, and diarrhea. Severe cases may result in coma and even death. You should seek immediate medical attention if you experience these symptoms while taking the medications. Talk to your doctor if you have any questions or concerns. Your doctor may already be aware of the risks, but has determined that this is the best course of treatment for you and has taken appropriate precautions and is monitoring you closely for any potential complications. 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
Prozac + Food

The following applies to the ingredients: Fluoxetine (found in Prozac)

Alcohol can increase the nervous system side effects of FLUoxetine 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 FLUoxetine. Do not use more than the recommended dose of FLUoxetine, 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
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.

Drug and Pregnancy Interactions

The following applies to the ingredients: Fluoxetine (found in Prozac)

Professional Content

This drug should be used only if the potential benefit justifies the risk to the fetus, taking into account the risks of untreated depression.

AU TGA pregnancy category: C
US FDA pregnancy category: C

Comments:
-A pregnancy exposure registry is available.
-Neonates exposed to this drug late in the third trimester may require respiratory support, tube feeding, and/or prolonged hospitalization.
-Exposed neonates should be monitored after delivery for direct toxic effects of this drug, drug discontinuation syndrome, and serotonin syndrome (e.g.,. respiratory distress, cyanosis, apnea, seizures, temperature instability, feeding difficulty, vomiting, hypoglycemia, hypo/hypertonia, hyperreflexia, tremor, jitteriness, irritability, constant crying).

Animal studies have failed to reveal evidence of fetal harm. There are no controlled data in human pregnancy.

Results of several epidemiological studies assessing the risk of exposure of this drug in early pregnancy have been inconsistent and not provided conclusive evidence of an increased risk of congenital malformations. Some epidemiological studies suggest an increased risk of cardiovascular malformations; however, the mechanism is unknown. Overall, data suggest that the risk of having an infant with a cardiovascular defect following maternal exposure is approximately 2 in 100 compared with 1 in 100 for the general population.

Epidemiological data have suggested that the use of SSRIs, particularly in late pregnancy, may increase the risk of persistent pulmonary hypertension in the newborn. Data are not available for SNRIs.

The results of a cohort study indicated that 30% of neonates who had prolonged exposure to SSRIs in utero experienced symptoms, in a dose- response manner, of a neonatal abstinence syndrome (e.g., tremor, gastrointestinal or sleep disturbances, hypertonicity, high-pitched cry) after birth. The authors suggest that infants exposed to SSRIs should be closely monitored for a minimum of 48 hours after birth.

Data from animal studies has shown that fluoxetine may affect sperm quality. Human case reports from some SSRIs have shown this effect to be reversible. As yet, the impact of this on human fertility has not been observed.

To monitor maternal-fetal outcomes of pregnant women exposed to antidepressant therapy, a National Pregnancy Registry for Antidepressants has been established. Healthcare providers are encouraged to prospectively register patients. For additional information: https://womensmentalhealth.org/clinical-and-research-programs/pregnancyregistry/antidepressants/

AU TGA pregnancy category C: Drugs which, owing to their pharmacological effects, have caused or may be suspected of causing, harmful effects on the human fetus or neonate without causing malformations. These effects may be reversible. Accompanying texts should be consulted for further details.

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. Prozac (fluoxetine)." Dista Products Company PROD (2001):
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  3. Cerner Multum, Inc. "Australian Product Information." O 0
  4. United States National Library of Medicine "Toxnet. Toxicology Data Network. http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT" (2013):

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

Drug and Breastfeeding Interactions

The following applies to the ingredients: Fluoxetine (found in Prozac)

Professional Content

Use of this drug is not recommended; however, if it is required by the mother, it is not considered a reason to discontinue breastfeeding

Excreted into human milk: Yes

Comments:
-Breastfed infants should be monitored for side effects such as colic, fussiness, sedation, and adequate weight gain.
-Mothers taking an SSRI during pregnancy and postpartum may have difficulty breastfeeding and may require additional breastfeeding support.

The average amount of drug in breastmilk is higher with fluoxetine than with most other SSRIs, and the long-acting active metabolite, norfluoxetine, is detectable in the serum of most breastfed infants during the first 2 months postpartum and in a few thereafter. No adverse effects on development have been reported in a few infants followed for up to one year.

It has been suggested that fluoxetine therapy may be continued during breastfeeding if it was used during pregnancy or if other antidepressants were ineffective. Alternatively, medicines with a lower excretion into breastmilk may be preferred, particularly when nursing a newborn or preterm infant.

An infant breastfed by a mother receiving oral fluoxetine therapy developed crying, sleep disturbance, watery stools, and vomiting. The infants' plasma drug levels of fluoxetine and norfluoxetine on the second day of feeding were 340 ng/mL and 208 ng/mL, respectively.

A report of ten women nursing eleven infants found that less than 10% of the dose of fluoxetine (per kg of body weight) was delivered to the nursing infant during chronic maternal therapy. Other reports from two lactating women taking fluoxetine have described milk fluoxetine and norfluoxetine concentrations to be about one-fifth to one-quarter of the serum concentrations. No adverse effects were reported in these nursing infants.

References

  1. "Product Information. Prozac (fluoxetine)." Dista Products Company PROD (2001):
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  3. Cerner Multum, Inc. "Australian Product Information." O 0
  4. United States National Library of Medicine "Toxnet. Toxicology Data Network. http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT" (2013):

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):

Therapeutic Duplication Warnings

The following applies to: Prozac (fluoxetine), Trazodone

Professional Content

The recommended maximum number of medicines in the 'antidepressants' category to be taken concurrently is usually one. Your list includes two medicines.

Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.

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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