3 Interactions found for:
Drug Interactions
A total of 722 medications are known to interact with Effexor XR. Add another medication to view potential interactions with this medication.
Drug and Food Interactions
Moderate
Effexor Xr
+ Food
The following applies to the ingredients: Venlafaxine (found in Effexor Xr)
GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of CNS-active agents. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills.
MANAGEMENT: Patients receiving CNS-active agents should be warned of this interaction and advised to avoid or limit consumption of alcohol. Ambulatory patients should be counseled to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.
References
- Warrington SJ, Ankier SI, Turner P "Evaluation of possible interactions between ethanol and trazodone or amitriptyline." Neuropsychobiology 15 (1986): 31-7
- Gilman AG, eds., Nies AS, Rall TW, Taylor P "Goodman and Gilman's the Pharmacological Basis of Therapeutics." New York, NY: Pergamon Press Inc. (1990):
- "Product Information. Fycompa (perampanel)." Eisai Inc (2012):
- "Product Information. Rexulti (brexpiprazole)." Otsuka American Pharmaceuticals Inc (2015):
Drug and Pregnancy Interactions
Major
Effexor Xr
+ Pregnancy
The following applies to the ingredients: Venlafaxine (found in Effexor Xr)
This drug should be used during pregnancy only if clearly needed.
AU TGA pregnancy category: B2
US FDA pregnancy category: Not assigned
Risk summary: No data are available on the use of this drug in pregnant women to inform a drug-related risk.
Comments:
-A pregnancy exposure registry is available.
-Patients should notify their healthcare provider if they become pregnant or intend to become pregnant during treatment.
-Some newborns exposed to this drug late in the third trimester have developed complications requiring tube-feeding, respiratory support, prolonged hospitalization, or persistent pulmonary hypertension in the newborn (PPHN).
-When treating a pregnant woman with this drug during the third trimester, the healthcare provider should carefully consider the potential risks and benefits of therapy.
Animal studies have revealed increased perinatal toxicity and fetotoxicity at doses potentially correlated with maternal toxicity. There are no controlled data in human pregnancy.
Some neonates exposed to SNRIs (Serotonin and Norepinephrine Reuptake Inhibitors), or SSRIs (Selective Serotonin Reuptake Inhibitors) late in the third trimester had clinical findings including respiratory distress, cyanosis, apnea, seizures, temperature instability, feeding difficulty, vomiting, hypoglycemia, hypotonia, hypertonia, hyperreflexia, tremor, jitteriness, irritability, and constant crying. This clinical picture is consistent with either direct toxic effect of SSRIs and SNRIs, drug discontinuation syndrome, or serotonin syndrome.
To monitor the outcomes of pregnant women exposed to atypical antipsychotics, a National Pregnancy Registry for Antidepressants has been established. Physicians are encouraged to register patients and pregnant women are encouraged to register themselves by visiting https://womensmentalhealth.org/clinical-and-research-programs/pregnancyregistry/antidepressants/.
AU TGA pregnancy category B2: Drugs which have been taken by only a limited number of pregnant women and women of childbearing age, without an increase in the frequency of malformation or other direct or indirect harmful effects on the human fetus having been observed. Studies in animals are inadequate or may be lacking, but available data show no evidence of an increased occurrence of fetal damage.
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
- "Product Information. Effexor (venlafaxine)." Wyeth-Ayerst Laboratories PROD (2001):
- "Product Information. Effexor XR (venlafaxine)." Wyeth-Ayerst Laboratories (2002):
- Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
- Cerner Multum, Inc. "Australian Product Information." O 0
- "Product Information. Venlafaxine Hydrochloride ER (venlafaxine)." Dr. Reddy's Laboratories Inc (2023):
- "Product Information. Venlafaxine Hydrochloride (venlafaxine)." Dr. Reddy's Laboratories Inc (2022):
Drug and Breastfeeding Interactions
Major
Effexor Xr
+ Breastfeeding
The following applies to the ingredients: Venlafaxine (found in Effexor Xr)
A decision should be made to discontinue breast-feeding or discontinue the drug, taking into account the importance of the drug to the mother.
Excreted into human milk: Yes
Comments:
-There have been post-marketing reports of breast-fed infants who experienced crying, irritability, and abnormal sleep patterns.
-The American Academy of Pediatrics classifies other antidepressants as agents for which the effect on nursing infants is unknown but may be of concern.
References
- "Product Information. Effexor (venlafaxine)." Wyeth-Ayerst Laboratories PROD (2001):
- "Product Information. Effexor XR (venlafaxine)." Wyeth-Ayerst Laboratories (2002):
- Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
- Cerner Multum, Inc. "Australian Product Information." O 0
- United States National Library of Medicine "Toxnet. Toxicology Data Network. http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT" (2013):
- Briggs GG, Freeman RK. "Drugs in Pregnancy and Lactation." Philadelphia, PA: Wolters Kluwer Health (2015):
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: Consumer 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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