6 Interactions found for:
Drug Interactions
No drug interactions were found for selected drugs: gabapentin, Ventolin HFA.
This does not necessarily mean no interactions exist. Always consult your healthcare provider.
Drug and Food Interactions
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):
Moderate
Ventolin Hfa
+ Food
The following applies to the ingredients: Albuterol (found in Ventolin Hfa)
MONITOR: Coadministration of two or more sympathomimetic agents may increase the risk of adverse effects such as nervousness, irritability, and increased heart rate. Central nervous system (CNS) stimulants, particularly amphetamines, can potentiate the adrenergic response to vasopressors and other sympathomimetic agents. Additive increases in blood pressure and heart rate may occur due to enhanced peripheral sympathetic activity.
MANAGEMENT: Caution is advised if two or more sympathomimetic agents are coadministered. Pulse and blood pressure should be closely monitored.
References
- Rosenblatt JE, Lake CR, van Kammen DP, Ziegler MG, Bunney WE Jr "Interactions of amphetamine, pimozide, and lithium on plasma norepineophrine and dopamine-beta-hydroxylase in schizophrenic patients." Psychiatry Res 1 (1979): 45-52
- Cavanaugh JH, Griffith JD, Oates JA "Effect of amphetamine on the pressor response to tyramine: formation of p-hydroxynorephedrine from amphetamine in man." Clin Pharmacol Ther 11 (1970): 656
- "Product Information. Adderall (amphetamine-dextroamphetamine)." Shire Richwood Pharmaceutical Company Inc PROD (2001):
- "Product Information. Tenuate (diethylpropion)." Aventis Pharmaceuticals PROD (2001):
- "Product Information. Sanorex (mazindol)." Novartis Pharmaceuticals PROD (2001):
- "Product Information. Focalin (dexmethylphenidate)." Mikart Inc (2001):
- "Product Information. Strattera (atomoxetine)." Lilly, Eli and Company (2002):
Drug and Pregnancy Interactions
Major
Ventolin Hfa
+ Pregnancy
The following applies to the ingredients: Albuterol (found in Ventolin Hfa)
The manufacturer makes no recommendation regarding use during pregnancy.
AU TGA pregnancy category: A
US FDA pregnancy category: Not assigned
Comments:
-There are no randomized clinical studies of albuterol use during pregnancy, but available information on pregnancy exposure by inhalation do not consistently show miscarriage or major birth defects.
-This drug is known to cross the placental barrier, as evidenced by increases in fetal heart rate.
-Beta-agonists, including this drug, may potentially interfere with uterine contractility.
-In women with poorly or moderately controlled asthma, there is an increased risk of preeclampsia in the mother and prematurity, low birth weight, and small for gestational age in the neonate. Pregnant women should be closely monitored and the dose adjusted as necessary to maintain optimal control.
-In some countries, intravenous injection presentations of this drug have been approved for delay pre-term labor (tocolytic agent) and should not be used in the management of uncomplicated premature labor.
Epidemiological studies and postmarketing case reports following inhaled administration of this drug do not consistently demonstrate a risk of major birth defects or miscarriage. In animal reproduction studies, subcutaneous administration to pregnant mice evidence of cleft palate at less than and up to 9 times the maximum recommended human daily inhalation dose (MRHDID). A study in pregnant rats demonstrated that drug-related material was transferred from the maternal circulation to the fetus. There are no controlled data in human pregnancy.
During worldwide marketing experience, various congenital anomalies, including cleft palate and limb defects, have been reported in the offspring of patients being treated with this drug. Some of the mothers were taking multiple medications during their pregnancies. A relationship between the use of this drug and congenital anomalies has not been established. Profuse uterine bleeding following spontaneous abortion has been reported after the use of this drug. Special care is required in pregnant diabetic women. The background birth defect and miscarriage risk for the indicated population is not known. In the US general population, the estimated major birth defect risk is 2 to 4% and the miscarriage risk is 15 to 20%.
A pregnancy exposure registry monitors outcomes after exposure to asthma medications during pregnancy. For more information, contact the Mothers To Baby Pregnancy Studies conducted by the Organization of Teratology Information Specialists at http://mothertobaby.org/pregnancystudies/.
AU TGA pregnancy category A: Drugs which have been taken by a large number of pregnant women and women of childbearing age without any proven increase in the frequency of malformations or other direct or indirect harmful effects on the fetus having been observed.
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
- Lunell NO, Joelsson I, Bjorkman U, Lamb P, Persson B "The use of salbutamol in obstetrics." Acta Obstet Gynecol Scand 55 (1976): 333-6
- Davies AE, Robertson MJ "Pulmonary oedema after the administration of intravenous salbutamol and ergometrine. Case report." Br J Obstet Gynaecol 87 (1980): 539-41
- Watson NA, Morgan B "Pulmonary oedema and salbutamol in preterm labour. Case report and literature review." Br J Obstet Gynaecol 96 (1989): 1445-8
- Lind T, Godfrey KA, Gerrard J, Bryson MR "Continuous salbutamol infusion over 17 weeks to pre-empt premature labour." Lancet 2 (1980): 1165-6
- Tan SN "Peri-partum pulmonary oedema." Anaesth Intensive Care 19 (1991): 111-3
- Hawker F "Five cases of pulmonary oedema associated with beta 2-sympathomimetic treatment of premature labour." Anaesth Intensive Care 12 (1984): 159-62
- Martin AJ "Severe unwanted effects associated with betasympathomimetics when used in the treatment of premature labour: causes, incidence and preventative measures." Br J Clin Pract 35 (1981): 325-9
- "Product Information. Proventil (albuterol)." Schering Corporation PROD (2002):
- "Product Information. Ventolin (albuterol)." Glaxo Wellcome PROD (2002):
- Rayburn WF, Atkinson BD, Gilbert K, Turnbull GL "Short-term effects of inhaled albuterol on maternal and fetal circulations." Am J Obstet Gynecol 171 (1994): 770-3
- Mcdonald CF, Burdon JGW "Asthma in pregnancy and lactation - a position paper for the thoracic society of australia and new zealand." Med J Aust 165 (1996): 485-8
- Dombrowski MP "Pharmacologic therapy of asthma during pregnancy." Obstet Gynecol Clin North Am 24 (1997): 559
- Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
- Cerner Multum, Inc. "Australian Product Information." O 0
- "Product Information. Albuterol Extended Release (albuterol)." Dava Pharmaceuticals Inc (2022):
- "Product Information. Albuterol Sulfate (albuterol)." Vista Pharm Inc (2022):
- "Product Information. Albuterol (albuterol)." Physicians Total Care (2022):
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
Ventolin Hfa
+ Breastfeeding
The following applies to the ingredients: Albuterol (found in Ventolin Hfa)
The manufacturer makes no recommendation regarding use during lactation.
Excreted into human milk: Unknown
Excreted into animal milk: Data not available
Comments:
-There is no information regarding this drug on the presence in human milk, the effects on a breastfed infant, or effects on milk production.
-Consider the developmental and health benefits of breastfeeding along with the mother's clinical need for this medication as well as any potential adverse effects from this drug or the underlying maternal condition.
References
- "Product Information. Proventil (albuterol)." Schering Corporation PROD (2002):
- "Product Information. Ventolin (albuterol)." Glaxo Wellcome PROD (2002):
- Mcdonald CF, Burdon JGW "Asthma in pregnancy and lactation - a position paper for the thoracic society of australia and new zealand." Med J Aust 165 (1996): 485-8
- Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
- Cerner Multum, Inc. "Australian Product Information." O 0
- "Product Information. Albuterol Extended Release (albuterol)." Dava Pharmaceuticals Inc (2022):
- "Product Information. Albuterol Sulfate (albuterol)." Vista Pharm Inc (2022):
- "Product Information. Albuterol (albuterol)." Physicians Total Care (2022):
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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