6 Interactions found for:
Drug Interactions
No drug interactions were found for selected drugs: Adderall, gabapentin.
This does not necessarily mean no interactions exist. Always consult your healthcare provider.
Drug and Food Interactions
Moderate
Adderall
+ Food
The following applies to the ingredients: Amphetamine (found in Adderall)
GENERALLY AVOID: Alcohol may potentiate the cardiovascular effects of amphetamines. The exact mechanism of interaction is unknown. In one study, concurrent administration of methamphetamine (30 mg intravenously) and ethanol (1 gm/kg orally over 30 minutes) increased heart rate by 24 beats/minute compared to methamphetamine alone. This increases cardiac work and myocardial oxygen consumption, which may lead to more adverse cardiovascular effects than either agent alone. Subjective effects of ethanol were diminished in the eight study subjects, but those of methamphetamine were not affected. The pharmacokinetics of methamphetamine were also unaffected except for a decrease in the apparent volume of distribution at steady state. The interaction was suspected in a case report of a 20-year-old male who experienced retrosternal chest pain shortly after drinking alcohol and taking a double dose of his amphetamine/dextroamphetamine medication (Adderall 15 mg X 2) to stay alert. The patient had no family history of cardiovascular diseases, and his past medical history was remarkable only for ADHD. Prior to the episode, the patient had not taken his medication for weeks and had been drinking whiskey the previous three nights before going to bed. The patient was diagnosed with myocardial infarction likely secondary to amphetamine-induced coronary vasospasm.
MANAGEMENT: Concomitant use of amphetamines and alcohol should be avoided if possible, especially in patients with a history of heart disease.
References
- Mendelson J, Jones RT, Upton R, Jacob P 3rd "Methamphetamine and ethanol interactions in humans." Clin Pharmacol Ther 57 (1995): 559-68
- Jiao X, Velez S, Ringstad J, Eyma V, Miller D, Bleiberg M "Myocardial infarction associated with Adderall XR and alcohol use in a young man." J Am Board Fam Med 22 (2009): 197-201
The following applies to the ingredients: Dextroamphetamine (found in Adderall)
GENERALLY AVOID: Alcohol may potentiate the cardiovascular effects of amphetamines. The exact mechanism of interaction is unknown. In one study, concurrent administration of methamphetamine (30 mg intravenously) and ethanol (1 gm/kg orally over 30 minutes) increased heart rate by 24 beats/minute compared to methamphetamine alone. This increases cardiac work and myocardial oxygen consumption, which may lead to more adverse cardiovascular effects than either agent alone. Subjective effects of ethanol were diminished in the eight study subjects, but those of methamphetamine were not affected. The pharmacokinetics of methamphetamine were also unaffected except for a decrease in the apparent volume of distribution at steady state. The interaction was suspected in a case report of a 20-year-old male who experienced retrosternal chest pain shortly after drinking alcohol and taking a double dose of his amphetamine/dextroamphetamine medication (Adderall 15 mg X 2) to stay alert. The patient had no family history of cardiovascular diseases, and his past medical history was remarkable only for ADHD. Prior to the episode, the patient had not taken his medication for weeks and had been drinking whiskey the previous three nights before going to bed. The patient was diagnosed with myocardial infarction likely secondary to amphetamine-induced coronary vasospasm.
MANAGEMENT: Concomitant use of amphetamines and alcohol should be avoided if possible, especially in patients with a history of heart disease.
References
- Mendelson J, Jones RT, Upton R, Jacob P 3rd "Methamphetamine and ethanol interactions in humans." Clin Pharmacol Ther 57 (1995): 559-68
- Jiao X, Velez S, Ringstad J, Eyma V, Miller D, Bleiberg M "Myocardial infarction associated with Adderall XR and alcohol use in a young man." J Am Board Fam Med 22 (2009): 197-201
Moderate
Gabapentin
+ Food
The following applies to the ingredients: Gabapentin
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
Adderall
+ Pregnancy
The following applies to the ingredients: Amphetamine (found in Adderall)
Use only if the benefit justifies the risk to the fetus
US FDA pregnancy category: Not Assigned
Risk Summary: There are insufficient data to determine a drug-associated risk of major congenital malformations or miscarriages; long-term neurochemical and behavioral effects have been reported in published animal developmental studies using clinically relevant doses of amphetamine.
Comments:
-Infants born to mothers dependent on amphetamines have an increased risk of premature delivery and low birth weight; these infants should be monitored for feeding difficulties, irritability, agitation, excessive drowsiness and other withdrawal symptoms.
-Pregnancy exposure registry monitors pregnancy outcomes in women exposed to psychostimulants during pregnancy; National Pregnancy Registry for Psychostimulants 1-866-961-2388 or online at https://womensmentalhealth.org/clinical-and-research-programs/pregnancyregistry/othermedications/
In animal studies, no effects on morphological development were seen in rats and rabbits exposed to doses 2 and 12 times the maximum recommended human dose (MRHD) during organogenesis, respectively. However, long-term neurochemical and behavioral effects (e.g., learning and memory deficits, altered locomotor activity, changes in sexual function) have been reported in published animal development studies at clinically relevant doses. Fetal malformations and death as well as severe maternal toxicity were observed in mice following parenteral administration of d-amphetamine doses approximately 10 times the MRHD. Adverse pregnancy outcomes, including premature delivery and low birth weight, have been seen in infants born to mother's dependent on amphetamines. This drug and others within the amphetamine class may cause vasoconstriction of placental blood vessels and increase the risk for intrauterine growth restriction. There are no controlled human data in pregnancy.
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
- United States National Library of Medicine "Toxnet. Toxicology Data Network. http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT" (2013):
- "Product Information. Evekeo (amphetamine)." Arbor Pharmaceuticals (2015):
- "Product Information. Dyanavel XR (amphetamine)." Tris Pharma Inc (2015):
- "Product Information. Adzenys ER (amphetamine)." Neos Therepeautics, Inc (2019):
- "Product Information. Adzenys XR-ODT (amphetamine)." Neos Therepeautics, Inc (2019):
The following applies to the ingredients: Dextroamphetamine (found in Adderall)
UK: Use is contraindicated during pregnancy.
AU and US: Use is not recommended during pregnancy.
AU TGA pregnancy category: B3
US FDA pregnancy category: C
Comments:
-Infants born to mothers dependent on amphetamine drugs have an increased risk of premature delivery and low birth weight, and may experience withdrawal symptoms including dysphoria, agitation, hyperexcitabilitiy, and significant lassitude.
-Females of reproductive potential should be advised to avoid pregnancy during treatment.
Although there are no controlled data in human pregnancy, the use of amphetamine drugs during early pregnancy has been associated with an increased risk of congenital malformations. Additionally, there has been one report of severe congenital bony deformity, tracheoesophageal fistula, and anal atresia (Vater association) in an infant whose mother took this drug with lovastatin during the first trimester of pregnancy.
Some animal studies have revealed evidence of embryotoxicity, teratogenicity, and reproductive toxicity. Animal data also showed developmental delays, behavioral sensitization, and increased motor activity in animal offspring due to prenatal exposures at dose levels comparable to human therapeutic dose levels.
AU TGA pregnancy category B3: 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 have shown evidence of an increased occurrence of fetal damage, the significance of which is considered uncertain in humans.
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
- "Product Information. Dexedrine (dextroamphetamine)." SmithKline Beecham PROD (2001):
- Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
- Cerner Multum, Inc. "Australian Product Information." O 0
The following applies to the ingredients: Amphetamine-Dextroamphetamine (found in Adderall)
Use is recommended during pregnancy only if the potential benefit justifies the possible risk to the fetus.
US FDA pregnancy category: C
Comments: Infants born to mothers dependent on amphetamines have an increased risk of premature delivery and low birth weight, and may experience withdrawal symptoms (e.g., dysphoria, agitation and significant lassitude).
In the enantiomer ratio present in this drug, some animal studies show amphetamine had no apparent effects on embryofetal morphological development or survival while other data offspring effects (e.g., decreased survival, increased locomotor activity, reduced body weight) in addition to maternal effects (e.g., hyperactivity and decreased weight gain). Animal studies also reveal long-term neurochemical and behavioral effects with exposure to amphetamine (d- or d-,l-isomers) at doses similar to those used clinically. There has been one report of severe congenital bony deformity, trachea-esophageal fistula, and anal atresia (vater association) in an infant whose mother took dextroamphetamine sulfate with lovastatin during the first trimester of pregnancy. There are no reported effects on fertility.
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
- "Product Information. Adderall (amphetamine-dextroamphetamine)." Shire Richwood Pharmaceutical Company Inc PROD (2001):
- "Product Information. Adderall XR (amphetamine-dextroamphetamine)." Shire Richwood Pharmaceutical Company Inc (2001):
Major
Gabapentin
+ Pregnancy
The following applies to the ingredients: Gabapentin
Benefits should clearly outweigh risks
AU TGA pregnancy category: B3
US FDA pregnancy category: Not assigned
Risk Summary: There are no data on the developmental risks associated with use of this drug in pregnant women; in animal studies, developmental toxicity was observed at doses estimated to be similar or lower than those used clinically.
Comments:
-The risk of having a child with a congenital defect as a result of antiepileptic medication is far outweighed by the dangers to the mother and fetus of uncontrolled epilepsy; folic acid supplementation (5 mg) should be started 4 weeks prior to and continued for 12 weeks after conception.
-Women of childbearing potential should receive counseling on the risk of fetal abnormalities with use of antiepileptic drugs (AEDs) during pregnancy; AEDs should generally be continued during pregnancy utilizing monotherapy at the lowest effective dose as this has been shown to minimize risks of fetal abnormalities compared to combination AED therapy.
-A pregnancy exposure registry is available.
Animal studies have revealed evidence of developmental toxicity (increased fetal skeletal and visceral abnormalities, and increased embryofetal mortality) when administered at doses similar to, or lower than expected clinical doses. In rats, an increased incidence of hydroureter and/or hydronephrosis have been observed in offspring at all doses, the lowest dose being similar to the maximum recommended human dose on a mg/m2 basis. This drug crosses the human placenta. From the limited amount of data in human pregnancy, it is not possible to inform an associated increased risk of congenital malformations because epilepsy itself and the presence of concomitant antiepileptic medicinal products have their own risks. There are no controlled data in human pregnancy.
To provide information regarding the effects of in utero exposure to this drug, pregnant patients should be encouraged to enroll in the North American Antiepileptic Drug (NAAED) Pregnancy Registry. This can be done by calling the toll-free number 1-888-233-2334 and must be done by patients themselves. Information on the registry can also be found at the website http://www.aedpregnancyregistry.org/.
AU TGA pregnancy category B3: 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 have shown evidence of an increased occurrence of fetal damage, the significance of which is considered uncertain in humans.
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. Neurontin (gabapentin)." Parke-Davis PROD (2001):
- Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
- Cerner Multum, Inc. "Australian Product Information." O 0
- "Product Information. Horizant (gabapentin)." GlaxoSmithKline (2021):
- "Product Information. Gralise (gabapentin)." Depomed Inc (2021):
Drug and Breastfeeding Interactions
Major
Adderall
+ Breastfeeding
The following applies to the ingredients: Amphetamine (found in Adderall)
Not recommended
Excreted into human milk: Yes
Comments:
-The effect on the neurological development of the breastfed infant has not been well studied.
-Large dosages might interfere with milk production, especially in women whose lactation is not well established.
Based on limited data, this drug is estimated to be present in human milk at approximately 2% to 13.8% of the maternal weight-adjusted dose (milk/plasma ratio 1.9 to 7.5). This drug does not appear to effect breastfeeding infants adversely in doses prescribed for medical indications, however, the effects on neurological development have not been well studied. Manufacturers recommend against breastfeeding while taking this drug due to the potential for serious adverse reactions in nursing infants. Breastfeeding should be avoided in women who are actively abusing amphetamines.
References
- United States National Library of Medicine "Toxnet. Toxicology Data Network. http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT" (2013):
- "Product Information. Evekeo (amphetamine)." Arbor Pharmaceuticals (2015):
- "Product Information. Dyanavel XR (amphetamine)." Tris Pharma Inc (2015):
- "Product Information. Adzenys ER (amphetamine)." Neos Therepeautics, Inc (2019):
- "Product Information. Adzenys XR-ODT (amphetamine)." Neos Therepeautics, Inc (2019):
- "Product Information. Evekeo ODT (amphetamine)." Arbor Pharmaceuticals (2021):
The following applies to the ingredients: Dextroamphetamine (found in Adderall)
UK: Use is contraindicated during breastfeeding.
AU and US: Breastfeeding is not recommended during treatment.
Excreted into human milk: Yes
Comments:
-The effect of this drug in milk on the neurological development of a breastfed infant has not been well studied.
-Large dosages of this drug might interfere with milk production, especially in women whose lactation is not well established.
-Blood levels of this drug in 3 breastfed infants were up to 14% of the maternal plasma level.
-Four breastfed infants whose mothers took an average dose of 18 mg per day of this drug had no adverse effects and showed normal progress with weights between the 10th and 75th percentiles.
-In a study of 20 postpartum women, this drug reduced serum prolactin by 25% to 32% (7.5 mg IV dose) and 30% to 37% (15 mg IV dose). Another study showed a 20 mg oral dose produced a sustained suppression of serum prolactin by 40%.
References
- "Product Information. Dexedrine (dextroamphetamine)." SmithKline Beecham 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):
The following applies to the ingredients: Amphetamine-Dextroamphetamine (found in Adderall)
Breastfeeding is not recommended during treatment.
Excreted into human milk: Yes
Comments:
-The effect of amphetamine and dextroamphetamine in milk on the neurological development of a breastfed infant has not been well studied.
-Large dosages of amphetamine and/or dextroamphetamine might interfere with milk production, especially in women whose lactation is not well established.
Level 2:
-The urinary excretion in 2 breastfed infants whose mothers took amphetamine 20 to 35 mg/day ranged from 0.1% to 2.1% of the mothers' excretion; these infants showed no signs of abnormal development.
-Dextroamphetamine blood levels in 3 breastfed infants were up to 14% of the maternal plasma level.
-Four breastfed infants whose mothers took an average dose of 18 mg/day dextroamphetamine had normal progress, no adverse effects, and weights between the 10th and 75th percentiles.
-In a study of 20 postpartum women, dextroamphetamine reduced serum prolactin by 25% to 32% (7.5 mg IV dose) and 30% to 37% (15 mg IV dose). Another study showed a 20 mg oral dose of dextroamphetamine produced a sustained suppression of serum prolactin by 40%.
References
- "Product Information. Adderall (amphetamine-dextroamphetamine)." Shire Richwood Pharmaceutical Company Inc PROD (2001):
- "Product Information. Adderall XR (amphetamine-dextroamphetamine)." Shire Richwood Pharmaceutical Company Inc (2001):
- United States National Library of Medicine "Toxnet. Toxicology Data Network. http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT" (2013):
Major
Gabapentin
+ Breastfeeding
The following applies to the ingredients: Gabapentin
Benefits should clearly outweigh risks
Excreted into human milk: Yes
Comments:
-Breastfed infants should be monitored for drowsiness, adequate weight gain, and developmental milestones, especially when used in combination with other anticonvulsant or psychotropic drugs and in younger, exclusively breastfed infants.
-Some authorities suggest discontinuing nursing or discontinuing use of this drug while breastfeeding due to the potential for serious adverse reactions in the breastfed infant.
With maternal doses up to 2.1 g/day, estimated doses for fully breastfed infants are 0.2 to 1.3 mg/kg/day (equivalent to 1.3 to 3.8% of the maternal weight-adjusted dose). An expert panel has deemed this drug is an acceptable choice for refractory restless leg syndrome during lactation. Until more data becomes available, the developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for this drug and any potential adverse effects on the breastfed infant from this drug or from the underlying maternal condition.
References
- "Product Information. Neurontin (gabapentin)." Parke-Davis 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):
- "Product Information. Horizant (gabapentin)." GlaxoSmithKline (2021):
- "Product Information. Gralise (gabapentin)." Depomed Inc (2021):
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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