6 Interactions found for:
Drug Interactions
No drug interactions were found for selected drugs: metformin, Zoloft.
This does not necessarily mean no interactions exist. Always consult your healthcare provider.
Drug and Food Interactions
Major
Metformin
+ Food
The following applies to the ingredients: Metformin
GENERALLY AVOID: Alcohol can potentiate the effect of metformin on lactate metabolism and increase the risk of lactic acidosis. In addition, alcohol may cause hypoglycemia or hyperglycemia in patients with diabetes. Although hypoglycemia rarely occurs during treatment with metformin alone, the risk may increase with acute consumption of alcohol. Even modest amounts can lower blood sugar significantly, especially when the alcohol is ingested on an empty stomach or following exercise. The mechanism involves inhibition of both gluconeogenesis as well as the counter-regulatory response to hypoglycemia. Episodes of hypoglycemia may last for 8 to 12 hours after ethanol ingestion. By contrast, chronic alcohol abuse can cause impaired glucose tolerance and hyperglycemia. Moderate alcohol consumption generally does not affect blood glucose levels in patients with well controlled diabetes.
Food may have varying effects on the absorption of metformin from immediate-release versus extended-release formulations. When a single 850 mg dose of immediate-release metformin was administered with food, mean peak plasma concentration (Cmax) and systemic exposure (AUC) decreased by 40% and 25%, respectively, and time to peak plasma concentration (Tmax) increased by 35 minutes compared to administration under fasting conditions. By contrast, administration of extended-release metformin with food increased AUC by 50% without affecting Cmax or Tmax, and both high- and low-fat meals had the same effect. These data may not be applicable to formulations that contain metformin with other oral antidiabetic agents.
MANAGEMENT: Metformin should be taken with meals, and excessive alcohol intake should be avoided during treatment. Diabetes patients in general should avoid consuming alcohol if their blood glucose is not well controlled, or if they have hypertriglyceridemia, neuropathy, or pancreatitis. Alcohol should not be consumed on an empty stomach or following exercise, as it may increase the risk of hypoglycemia. Patients should contact their physician immediately if they experience potential signs and symptoms of lactic acidosis such as malaise, myalgia, respiratory distress, increasing somnolence, and nonspecific abdominal distress (especially after stabilization of metformin therapy, when gastrointestinal symptoms are uncommon). With more marked acidosis, there may also be associated hypothermia, hypotension, and resistant bradyarrhythmias. Metformin should be withdrawn promptly if lactic acidosis is suspected. Serum electrolytes, ketones, blood glucose, blood pH, lactate levels, and blood metformin levels may be useful in establishing a diagnosis. Lactic acidosis should be suspected in any diabetic patient with metabolic acidosis lacking evidence of ketoacidosis (ketonuria and ketonemia).
References
- "Product Information. Glucophage (metformin)." Bristol-Myers Squibb PROD (2001):
- "Position Statement: evidence-based nutrition principles and recommendations for the treatment and prevention of diabetes related complications. American Diabetes Association." Diabetes Care 25(Suppl 1) (2002): S50-S60
Moderate
Zoloft
+ Food
The following applies to the ingredients: Sertraline (found in Zoloft)
GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of sertraline. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills. In addition, limited clinical data suggest that consumption of grapefruit juice during treatment with sertraline may result in increased plasma concentrations of sertraline. The proposed mechanism is inhibition of CYP450 3A4-mediated metabolism by certain compounds present in grapefruit. An in-vitro study demonstrated that grapefruit juice dose-dependently inhibits the conversion of sertraline to its metabolite, desmethylsertraline. In a study with eight Japanese subjects, mean plasma levels of sertraline increased by approximately 100% and maximum plasma concentrations increased by 66% after the ingestion of three 250 mL glasses of grapefruit juice per day for 5 days and administration of a single dose of sertraline 75 mg on the sixth day. In another small study with 5 patients, mean sertraline trough levels increased by 47% after taking sertraline for at least 6 weeks, then taking sertraline with 240 mL grapefruit juice daily for 1 week. The clinical significance is unknown; however, pharmacokinetic alterations associated with interactions involving grapefruit juice are often subject to a high degree of interpatient variability. The possibility of significant interaction in some patients should be considered.
MANAGEMENT: Patients receiving sertraline should be 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 sertraline affects them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities. Some authorities recommend that consumption of grapefruit juice should be avoided during sertraline therapy.
References
- "Product Information. Zoloft (sertraline)." Roerig Division PROD (2001):
- Lee AJ, Chan WK, Harralson AF, Buffum J, Bui BCC "The effects of grapefruit juice on sertraline metabolism: An in vitro and in vivo study." Clin Ther 21 (1999): 1890-9
- Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
- Ueda N, Yoshimura R, Umene-Nakano W, et al. "Grapefruit juice alters plasma sertraline levels after single ingestion of sertraline in healthy volunteers." World J Biol Psychiatry 10(4 Pt 3) (2009): 832-5
Drug and Pregnancy Interactions
Major
Zoloft
+ Pregnancy
The following applies to the ingredients: Sertraline (found in Zoloft)
This drug should be used during pregnancy only if the potential benefit outweighs the potential risk to the fetus, taking into account the risks of untreated depression.
-Oral concentrate and solution formulations containing alcohol: Not recommended.
AU TGA pregnancy category: C
US FDA pregnancy category: Not assigned.
Risk summary: Malformative risk is unlikely when given during the first trimester. There is inconclusive data on use of this drug in the third trimester to inform of a drug-related risk.
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 teratogenicity; however, there was evidence of delayed ossification and effects on reproduction attributed to maternal toxicity. Decreased neonatal survival following maternal administration at exposures similar to or slightly greater than the maximum recommended human dose of 200 mg was also observed; the clinical significance is unknown. There are no controlled data in human pregnancy.
The results of several studies suggest that the use of SSRIs in the first trimester of pregnancy may be associated with an increased risk of cardiovascular and/or other congenital malformations; however, this association has not been clearly established. The association appears to be strongest for another SSRI, paroxetine.
Use of sertraline during pregnancy has been reported to cause symptoms compatible with withdrawal reactions in neonates whose mothers had taken sertraline. Neonates exposed to SSRIs and SNRIs late in the third trimester have uncommonly reported clinical findings including respiratory distress, cyanosis, apnea, seizures, temperature instability, feeding difficulty, vomiting, hypoglycemia, hypotonia, hyperreflexia, tremor, jitteriness, irritability, and constant crying. These effects have mostly occurred either at birth or within a few days of birth. These features are consistent with either a direct toxic effect of SSRIs and SNRIs, or possibly a drug discontinuation syndrome; in some cases, the clinical picture is consistent with serotonin syndrome. The results of a cohort study indicate that 30% of neonates who had prolonged exposure to SSRIs in utero experience symptoms, in a dose-response manner, of a neonatal abstinence syndrome after birth. The authors suggest that infants exposed to SSRIs should be closely monitored for a minimum of 48 hours after birth.
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.
One study compared 267 women exposed to an SSRI - either fluvoxamine, paroxetine, or sertraline, to 267 controls. Exposure to SSRIs was not associated with either increased risk for major malformations, higher rates of miscarriage, stillbirth, or prematurity. Mean birth weights among SSRI users were similar to controls as were the gestational ages. The study concluded that the SSRIs fluvoxamine, paroxetine, and sertraline did not appear to increase teratogenic risk when used in their recommended doses.
Animal data with sertraline have not shown an effect on fertility. Human case reports from some SSRIs have shown an effect on sperm quality that is 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 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. Zoloft (sertraline)." Roerig Division PROD (2001):
- Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
- Cerner Multum, Inc. "Australian Product Information." O 0
Minor
Metformin
+ Pregnancy
The following applies to the ingredients: Metformin
Benefit should outweigh risk
AU TGA pregnancy category: C
US FDA pregnancy category: Not assigned
Risk Summary: Data are not sufficient to inform a drug-associated risk for major birth defects or miscarriage; published studies have not reported an increased risk. There are risks to the mother and fetus associated with poorly controlled diabetes in pregnancy.
Comments:
-Maternal glucose levels should be well controlled prior to conception and throughout pregnancy to avoid maternal and fetal diabetes-associated risks.
-Premenopausal women should understand the potential for unintended pregnancy with use of this drug as ovulation may occur in some anovulatory women.
Animal studies do not indicate harmful effects with respect to pregnancy, embryo or fetal development, birth or postnatal development. Poorly-controlled diabetes in pregnancy increases the maternal risk for diabetic ketoacidosis, pre-eclampsia, spontaneous abortions, preterm delivery, stillbirth and delivery complications. Poorly controlled maternal diabetes increases the fetal risk for major birth defects, stillbirth, and macrosomia related morbidity. Published evidence suggests this drug has a good safety profile in women with no increased long-term effects in offspring up to 18 months; however, much of the evidence is from observational, small, and/or nonrandomized studies, and therefore data must be interpreted cautiously.
Many experts continue to recommend insulin as the drug of choice for type 1, type 2, and gestational diabetes when diet alone is unsuccessful in controlling blood sugars. The estimated background risk for major birth defects in women with pre-gestational diabetes mellitus with an HbA1C greater than 7 is 6% to 10% and for women with a HbA1C greater than 10, this risk has been reported to be as high as 20% to 25%. In the US, the estimated risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. The estimated risk of miscarriage for pregnant women with diabetes is unknown. There are no adequate and well-controlled studies in pregnant women.
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 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. Glucophage (metformin)." Bristol-Myers Squibb PROD (2001):
- Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
- Cerner Multum, Inc. "Australian Product Information." O 0
- "Product Information. Fortamet (metformin)." Physicians Total Care (2014):
- "Product Information. Glumetza (metformin)." Biovail Pharmaceuticals Canada (2014):
- "Product Information. Riomet (metformin)." Ranbaxy Pharmaceuticals (2014):
- Lindsay RS, Loeken MR "Metformin use in pregnancy: promises and uncertainties" Diabetologia 60 (2017): 1612-9
- Kelley KW, Carroll DG, Meyer A "A review of current treatment strategies for gestational diabetes mellitus." Drugs Context 4 (2015): epub
Drug and Breastfeeding Interactions
Major
Zoloft
+ Breastfeeding
The following applies to the ingredients: Sertraline (found in Zoloft)
Use is not recommended; benefit to the mother should outweigh risk to the infant.
Excreted into human milk: Yes
Comments:
-This drug has been considered one of the preferred antidepressants during breastfeeding.
-Accumulation of the drug may occur in preterm infants with impaired metabolic activity; effects similar to neonatal abstinence may rarely present in these infants.
-Mothers taking an SSRI during pregnancy and postpartum may have difficulty breastfeeding and may require additional breastfeeding support.
Benign neonatal sleep myoclonus in a 4-month-old infant and agitation in that spontaneously resolved in another infant was reported to the Australian Adverse Drug Reaction Advisory Committee and may be related to the presence of sertraline in breastmilk.
Levels of sertraline in breastmilk are reported to be low; the weakly active metabolite desmethylsertraline may be detectable in low levels. In a study of 26 breastfeeding women who were, on average, 15.8 weeks postpartum and receiving an average of 124 mg sertraline daily for at least 14 days for severe depression, complete sets of milk sample data were available for 15 mothers. Analysis of these samples led the study authors to estimate that an exclusively breastfed infant would receive an average of 0.54% of the maternal weight-adjusted dosage. Pumping and discarding milk 8 to 9 hours after the mother's dose would decrease the infant's daily dosage by 17%.
Amounts of sertraline ingested by breastfed infants are reported to be small. There was an analysis of 30 breastfed infants aged 6 to 13 weeks, of which 19 were exclusively breastfed and 11 breastfed at least half the time. Serum sertraline levels were below 1 mcg/L in 22 infants. The other 8 infants had an average serum sertraline level of 7.9 mcg/L; their mothers were taking a average of 109 mg sertraline daily, with an average serum level of 52.8 mcg/L.
The data from one study on three breast-fed infants suggested that sertraline and/or its almost inactive metabolite norsertraline may be present at very low concentrations in the plasma of breast-fed infants. No adverse effects were noted in the infants.
A pooled analysis of 53 mother-infant pairs from published and unpublished cases found that infants had an average of 2% of the sertraline plasma levels of the mothers'; three of the infants had a plasma level greater than 10% of the mothers'.
A study of fourteen mother-infant pairs reported that while mothers receiving clinical doses of sertraline experienced substantial blockade of the platelet 5-HT transporter, platelet 5-HT uptake in nursing infants of treated mothers was unaltered.
Another study of twelve breast-feeding mothers reported that both sertraline and desmethylsertraline were present in all breast milk samples. Detectable levels of sertraline were reported in three nursing infants and detectable levels of desmethylsertraline were reported in six infants.
A case study of a mother breast-feeding while receiving sertraline therapy has also been reported. The drug was found to be present in the mother's milk. However, no sertraline was detected in the infant's serum and no abnormal occurrences were noted in the development of this infant either.
References
- "Product Information. Zoloft (sertraline)." Roerig Division PROD (2001):
- 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):
Minor
Metformin
+ Breastfeeding
The following applies to the ingredients: Metformin
Benefit should outweigh risk
Excreted into human milk: Yes
Comments:
-Available data have not reported adverse effects in breastfed infants, however, this data is limited.
-Due to this limited data, product manufacturers recommend a decision should be made to discontinue nursing or discontinue the drug, considering the importance of the drug to the mother.
-Published data suggest this drug is compatible with breastfeeding; they recommend caution when nursing a newborn or premature infant, and those with renal impairment.
Drug levels are expected to be 0.5% (range 0.11% to 1%) of the mother's weight-adjusted dosage and milk/plasma ratio range between 0.13 and 1. Since milk levels are expected to be relatively constant, timing of breastfeeding with drug administration is expected to be of little benefit. One large prospective study found no adverse effects in breastfed infants. Low detectable serum levels were found in some breastfed infants.
References
- "Product Information. Glucophage (metformin)." Bristol-Myers Squibb PROD (2001):
- Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
- Feig DS, Briggs GG, Koren G "Oral antidiabetic agents in pregnancy and lactation: a paradigm shift?" Ann Pharmacother (2007): 1174-80
- 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):
- "Product Information. Fortamet (metformin)." Physicians Total Care (2014):
- "Product Information. Glumetza (metformin)." Biovail Pharmaceuticals Canada (2014):
- "Product Information. Riomet (metformin)." Ranbaxy Pharmaceuticals (2014):
- Kelley KW, Carroll DG, Meyer A "A review of current treatment strategies for gestational diabetes mellitus." Drugs Context 4 (2015): epub
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 | |
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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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