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Drug Interactions between Byvalson and FBL Kit

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

lidocaine baclofen

Applies to: FBL Kit (baclofen / flurbiprofen / lidocaine topical) and FBL Kit (baclofen / flurbiprofen / lidocaine topical)

MONITOR: Central nervous system- and/or respiratory-depressant effects may be additively or synergistically increased in patients taking multiple drugs that cause these effects, especially in elderly or debilitated patients. Sedation and impairment of attention, judgment, thinking, and psychomotor skills may increase.

MANAGEMENT: During concomitant use of these drugs, patients should be monitored for potentially excessive or prolonged CNS and respiratory depression. Cautious dosage titration may be required, particularly at treatment initiation. Ambulatory patients should be counseled to avoid hazardous activities requiring 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

  1. Hamilton MJ, Bush M, Smith P, Peck AW "The effects of bupropion, a new antidepressant drug, and diazepam, and their interaction in man." Br J Clin Pharmacol 14 (1982): 791-7
  2. Stambaugh JE, Lane C "Analgesic efficacy and pharmacokinetic evaluation of meperidine and hydroxyzine, alone and in combination." Cancer Invest 1 (1983): 111-7
  3. Sotaniemi EA, Anttila M, Rautio A, et al. "Propranolol and sotalol metabolism after a drinking party." Clin Pharmacol Ther 29 (1981): 705-10
  4. Grabowski BS, Cady WJ, Young WW, Emery JF "Effects of acute alcohol administration on propranolol absorption." Int J Clin Pharmacol Ther Toxicol 18 (1980): 317-9
  5. Lemberger L, Rowe H, Bosomworth JC, Tenbarge JB, Bergstrom RF "The effect of fluoxetine on the pharmacokinetics and psychomotor responses of diazepam." Clin Pharmacol Ther 43 (1988): 412-9
  6. MacLeod SM, Giles HG, Patzalek G, Thiessen JJ, Sellers EM "Diazepam actions and plasma concentrations following ethanol ingestion." Eur J Clin Pharmacol 11 (1977): 345-9
  7. Divoll M, Greenblatt DJ, Lacasse Y, Shader RI "Benzodiazepine overdosage: plasma concentrations and clinical outcome." Psychopharmacology (Berl) 73 (1981): 381-3
  8. Naylor GJ, McHarg A "Profound hypothermia on combined lithium carbonate and diazepam treatment." Br Med J 2 (1977): 22
  9. Stovner J, Endresen R "Intravenous anaesthesia with diazepam." Acta Anaesthesiol Scand 24 (1965): 223-7
  10. Driessen JJ, Vree TB, Booij LH, van der Pol FM, Crul JF "Effect of some benzodiazepines on peripheral neuromuscular function in the rat in-vitro hemidiaphragm preparation." J Pharm Pharmacol 36 (1984): 244-7
  11. Feldman SA, Crawley BE "Interaction of diazepam with the muscle-relaxant drugs." Br Med J 1 (1970): 336-8
  12. Ochs HR, Greenblatt DJ, Verburg-Ochs B "Propranolol interactions with diazepam, lorazepam and alprazolam." Clin Pharmacol Ther 36 (1984): 451-5
  13. Desager JP, Hulhoven R, Harvengt C, Hermann P, Guillet P, Thiercelin JF "Possible interactions between zolpidem, a new sleep inducer and chlorpromazine, a phenothiazine neuroleptic." Psychopharmacology (Berl) 96 (1988): 63-6
  14. Tverskoy M, Fleyshman G, Ezry J, Bradley EL, Jr Kissin I "Midazolam-morphine sedative interaction in patients." Anesth Analg 68 (1989): 282-5
  15. "Product Information. Iopidine (apraclonidine ophthalmic)." Alcon Laboratories Inc PROD
  16. Greiff JMC, Rowbotham D "Pharmacokinetic drug interactions with gastrointestinal motility modifying agents." Clin Pharmacokinet 27 (1994): 447-61
  17. Greb WH, Buscher G, Dierdorf HD, Koster FE, Wolf D, Mellows G "The effect of liver enzyme inhibition by cimetidine and enzyme induction by phenobarbitone on the pharmacokinetics of paroxetine." Acta Psychiatr Scand 80 Suppl (1989): 95-8
  18. Markowitz JS, Wells BG, Carson WH "Interactions between antipsychotic and antihypertensive drugs." Ann Pharmacother 29 (1995): 603-9
  19. "Product Information. Ultram (tramadol)." McNeil Pharmaceutical PROD (2001):
  20. "Product Information. Artane (trihexyphenidyl)." Lederle Laboratories PROD (2001):
  21. "Product Information. Ultiva (remifentanil)." Mylan Institutional (formally Bioniche Pharma USA Inc) PROD (2001):
  22. "Product Information. Seroquel (quetiapine)." Astra-Zeneca Pharmaceuticals PROD (2001):
  23. "Product Information. Meridia (sibutramine)." Knoll Pharmaceutical Company PROD (2001):
  24. "Product Information. Tasmar (tolcapone)." Valeant Pharmaceuticals PROD (2001):
  25. Miller LG "Herbal medicinals: selected clinical considerations focusing on known or potential drug-herb interactions." Arch Intern Med 158 (1998): 2200-11
  26. "Product Information. Precedex (dexmedetomidine)." Abbott Pharmaceutical PROD (2001):
  27. "Product Information. Trileptal (oxcarbazepine)." Novartis Pharmaceuticals PROD (2001):
  28. Ferslew KE, Hagardorn AN, McCormick WF "A fatal interaction of methocarbamol and ethanol in an accidental poisoning." J Forensic Sci 35 (1990): 477-82
  29. Plushner SL "Valerian: valeriana officinalis." Am J Health Syst Pharm 57 (2000): 328-35
  30. "Product Information. Xatral (alfuzosin)." Sanofi-Synthelabo Canada Inc (2002):
  31. "Product Information. Lexapro (escitalopram)." Forest Pharmaceuticals (2002):
  32. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  33. Cerner Multum, Inc. "Australian Product Information." O 0
  34. "Product Information. Fycompa (perampanel)." Eisai Inc (2012):
  35. "Product Information. Belsomra (suvorexant)." Merck & Co., Inc (2014):
  36. "Product Information. Rexulti (brexpiprazole)." Otsuka American Pharmaceuticals Inc (2015):
View all 36 references

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Moderate

flurbiprofen valsartan

Applies to: FBL Kit (baclofen / flurbiprofen / lidocaine topical) and Byvalson (nebivolol / valsartan)

MONITOR: Nonsteroidal anti-inflammatory drugs (NSAIDs) may attenuate the antihypertensive effects of angiotensin II receptor antagonists. The proposed mechanism is NSAID-induced inhibition of renal prostaglandin synthesis, which results in unopposed pressor activity producing hypertension. In addition, NSAIDs can cause fluid retention, which also affects blood pressure. Clinical data are limited.

MONITOR: Concomitant use of NSAIDs and angiotensin II receptor antagonists may cause deterioration in renal function, particularly in patients who are elderly or volume-depleted (including those on diuretic therapy) or have compromised renal function. Acute renal failure may occur, although effects are usually reversible. Chronic use of NSAIDs alone may be associated with renal toxicities, including elevations in serum creatinine and BUN, tubular necrosis, glomerulitis, renal papillary necrosis, acute interstitial nephritis, nephrotic syndrome, and renal failure. Additionally, in patients with prerenal conditions whose renal perfusion may be dependent on the function of prostaglandins, NSAIDs may precipitate overt renal decompensation via a dose-related inhibition of prostaglandin synthesis. Angiotensin II receptor antagonists can further worsen renal function by blocking the effect of angiotensin II-mediated efferent arteriolar vasoconstriction, thereby decreasing glomerular filtration.

MANAGEMENT: Patients receiving angiotensin II receptor antagonists who require prolonged (greater than 1 week) concomitant therapy with an NSAID should have blood pressure monitored more closely following initiation, discontinuation, or change of dosage of the NSAID. Renal function should also be evaluated periodically during prolonged coadministration. The interaction is not expected to occur with low doses (e.g., low-dose aspirin) or intermittent short-term administration of NSAIDs.

References

  1. Radack KL, Deck CC, Bloomfield SS "Ibuprofen interferes with the efficacy of antihypertensive drugs: a randomized, double-blind, placebo-controlled trial of ibuprofen compared with acetaminophen." Ann Intern Med 107 (1987): 628-35
  2. "Product Information. Toradol (ketorolac)." Roche Laboratories PROD (2002):
  3. "Multum Information Services, Inc. Expert Review Panel"
  4. "Product Information. Celebrex (celecoxib)." Searle PROD (2001):
View all 4 references

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Moderate

baclofen valsartan

Applies to: FBL Kit (baclofen / flurbiprofen / lidocaine topical) and Byvalson (nebivolol / valsartan)

MONITOR: Many psychotherapeutic and CNS-active agents (e.g., anxiolytics, sedatives, hypnotics, antidepressants, antipsychotics, opioids, alcohol, muscle relaxants) exhibit hypotensive effects, especially during initiation of therapy and dose escalation. Coadministration with antihypertensives and other hypotensive agents, in particular vasodilators and alpha-blockers, may result in additive effects on blood pressure and orthostasis.

MANAGEMENT: Caution and close monitoring for development of hypotension is advised during coadministration of these agents. Some authorities recommend avoiding alcohol in patients receiving vasodilating antihypertensive drugs. Patients should be advised to avoid rising abruptly from a sitting or recumbent position and to notify their physician if they experience dizziness, lightheadedness, syncope, orthostasis, or tachycardia.

References

  1. Sternbach H "Fluoxetine-associated potentiation of calcium-channel blockers." J Clin Psychopharmacol 11 (1991): 390-1
  2. Shook TL, Kirshenbaum JM, Hundley RF, Shorey JM, Lamas GA "Ethanol intoxication complicating intravenous nitroglycerin therapy." Ann Intern Med 101 (1984): 498-9
  3. Feder R "Bradycardia and syncope induced by fluoxetine." J Clin Psychiatry 52 (1991): 139
  4. Ellison JM, Milofsky JE, Ely E "Fluoxetine-induced bradycardia and syncope in two patients." J Clin Psychiatry 51 (1990): 385-6
  5. Rodriguez de la Torre B, Dreher J, Malevany I, et al. "Serum levels and cardiovascular effects of tricyclic antidepressants and selective serotonin reuptake inhibitors in depressed patients." Ther Drug Monit 23 (2001): 435-40
  6. Cerner Multum, Inc. "Australian Product Information." O 0
  7. Pacher P, Kecskemeti V "Cardiovascular side effects of new antidepressants and antipsychotics: new drugs, old concerns?" Curr Pharm Des 10 (2004): 2463-75
  8. Andrews C, Pinner G "Postural hypotension induced by paroxetine." BMJ 316 (1998): 595
View all 8 references

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Moderate

lidocaine nebivolol

Applies to: FBL Kit (baclofen / flurbiprofen / lidocaine topical) and Byvalson (nebivolol / valsartan)

MONITOR: Some beta-blockers may increase lidocaine levels and risk of toxicity. The proposed mechanism is enzyme inhibition and/or decreased cardiac output and hepatic blood flow resulting in decreased hepatic metabolism of lidocaine. In addition beta-blockers and lidocaine may also have additive negative inotropic effects on the heart. Data have been conflicting and variable.

MANAGEMENT: Patients receiving concurrent therapy should be monitored for drowsiness, mental status changes, bradycardia, and hypotension. Lidocaine levels should be obtained when clinically necessary. If toxicity is suspected, the lidocaine infusion should be decreased, as possible.

References

  1. Miners JO, Wing MH, Lillywhite KJ, Smith KJ "Failure of "therapeutic" doses of beta-adrenoceptor antagonists to alter the disposition of tolbutamide and lignocaine." Br J Clin Pharmacol 18 (1984): 853-60
  2. Ochs HR, Carstens G, Greenblatt DJ "Reduction in lidocaine clearance during continuous infusion and by coadministration of propranolol." N Engl J Med 303 (1980): 373-7
  3. Schneck DW, Luderer JR, Davis D, Vary J "Effects of nadolol and propranolol on plasma lidocaine clearance." Clin Pharmacol Ther 36 (1984): 584-7
  4. Svendsen TL, Tango M, Waldorff S, et al. "Effects of propranolol and pindolol on plasma lignocaine clearance in man." Br J Clin Pharmacol 13 (1982): s223-6
  5. Conrad KA, Byers JM, Finley PR, Burnham L "Lidocaine elimination: effects of metoprolol and of propranolol." Clin Pharmacol Ther 33 (1983): 133-8
  6. Jordo L, Johnsson G, Lundborg P, Regardh CG "Pharmacokinetics of lidocaine in healthy individuals pretreated with multiple doses of metoprolol." Int J Clin Pharmacol Ther Toxicol 22 (1984): 312-5
  7. Graham CF, Turner WM, Jones JK "Lidocaine-propranolol interactions ." N Engl J Med 304 (1981): 1301
  8. Ochs HR, Skanderra D, Abernethy DR, Greenblatt DJ "Effect of penbutolol on lidocaine kinetics." Arzneimittelforschung 33 (1983): 1680-1
  9. Bax ND, Tucker GT, Lennard MS, Woods HF "The impairment of lignocaine clearance by propranolol: major contribution from enzyme inhibition." Br J Clin Pharmacol 19 (1985): 597-603
  10. Parker G, Ene MD, Daneshmend TK, Roberts CJ "Do beta blockers differ in their effects on hepatic microsomal enzymes and liver blood flow?" J Clin Pharmacol 24 (1984): 493-9
View all 10 references

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Moderate

flurbiprofen nebivolol

Applies to: FBL Kit (baclofen / flurbiprofen / lidocaine topical) and Byvalson (nebivolol / valsartan)

MONITOR: Nonsteroidal anti-inflammatory drugs (NSAIDs) may attenuate the antihypertensive effect of beta-blockers. The proposed mechanism is NSAID-induced inhibition of renal prostaglandin synthesis, which results in unopposed pressor activity producing hypertension. In addition, NSAIDs can cause fluid retention, which also affects blood pressure. Indomethacin and piroxicam have been reported to have greater attenuating effects than other NSAIDs, and indomethacin effects may be significant in patients with eclampsia.

MANAGEMENT: Patients receiving a beta-blocker who require prolonged (greater than 1 week) concomitant therapy with an NSAID should have blood pressure monitored more closely following initiation, discontinuation, or change of dosage of the NSAID. The interaction is not expected to occur with low doses (e.g., low-dose aspirin) or intermittent short-term administration of NSAIDs.

References

  1. Salvetti A, Pedrinelli R, Alberici P, Magagna A, Abdel-Haq B "The influence of indomethacin and sulindac on some pharmacological actions of atenolol in hypertensive patients." Br J Clin Pharmacol 17 Suppl 1 (1984): s108-11
  2. Ylitalo P, Pitkajarvi T, Pyykonen ML, Nurmi AK, Seppala E, Vapaatalo H "Inhibition of prostaglandin synthesis by indomethacin interacts with the antihypertensive effect of atenolol." Clin Pharmacol Ther 38 (1985): 443-9
  3. Radack KL, Deck CC, Bloomfield SS "Ibuprofen interferes with the efficacy of antihypertensive drugs." Ann Intern Med 107 (1987): 628-35
  4. Wong DG, Spence JD, Lamki L, Freeman D, McDonald JW "Effect of non-steroidal anti-inflammatory drugs on control of hypertension by beta-blockers and diuretics." Lancet 1 (1986): 997-1001
  5. Durao V, Prata MM, Goncalves LM "Modification of antihypertensive effect of beta-adrenoceptor-blocking agents by inhibition of endogenous prostaglandin synthesis." Lancet 2 (1977): 1005-7
  6. Abate MA, Neely JL, Layne RD, D'Allessandri R "Interaction of indomethacin and sulindac with labetalol." Br J Clin Pharmacol 31 (1991): 363-6
  7. Salvetti A, Arzilli F, Pedrinelli R, Beggi P, Motolese M "Interaction between oxprenolol and indomethacin on blood pressure in essential hypertensive patients." Eur J Clin Pharmacol 22 (1982): 197-201
  8. Durao V, Prata MM, Concalves LM "Modification of antihypertensive effect of B-adrenoceptor-blocking agents by inhibition of endogenous prostaglandin synthesis." Lancet 2 (1977): 1005-7
  9. Hartmann D, Stief G, Lingenfelder M, Guzelhan C, Horsch AK "Study on the possible interaction between tenoxicam and atenolol in hypertensive patients." Arzneimittelforschung 45-1 (1995): 494-8
View all 9 references

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Moderate

baclofen nebivolol

Applies to: FBL Kit (baclofen / flurbiprofen / lidocaine topical) and Byvalson (nebivolol / valsartan)

MONITOR: Many psychotherapeutic and CNS-active agents (e.g., anxiolytics, sedatives, hypnotics, antidepressants, antipsychotics, opioids, alcohol, muscle relaxants) exhibit hypotensive effects, especially during initiation of therapy and dose escalation. Coadministration with antihypertensives and other hypotensive agents, in particular vasodilators and alpha-blockers, may result in additive effects on blood pressure and orthostasis.

MANAGEMENT: Caution and close monitoring for development of hypotension is advised during coadministration of these agents. Some authorities recommend avoiding alcohol in patients receiving vasodilating antihypertensive drugs. Patients should be advised to avoid rising abruptly from a sitting or recumbent position and to notify their physician if they experience dizziness, lightheadedness, syncope, orthostasis, or tachycardia.

References

  1. Sternbach H "Fluoxetine-associated potentiation of calcium-channel blockers." J Clin Psychopharmacol 11 (1991): 390-1
  2. Shook TL, Kirshenbaum JM, Hundley RF, Shorey JM, Lamas GA "Ethanol intoxication complicating intravenous nitroglycerin therapy." Ann Intern Med 101 (1984): 498-9
  3. Feder R "Bradycardia and syncope induced by fluoxetine." J Clin Psychiatry 52 (1991): 139
  4. Ellison JM, Milofsky JE, Ely E "Fluoxetine-induced bradycardia and syncope in two patients." J Clin Psychiatry 51 (1990): 385-6
  5. Rodriguez de la Torre B, Dreher J, Malevany I, et al. "Serum levels and cardiovascular effects of tricyclic antidepressants and selective serotonin reuptake inhibitors in depressed patients." Ther Drug Monit 23 (2001): 435-40
  6. Cerner Multum, Inc. "Australian Product Information." O 0
  7. Pacher P, Kecskemeti V "Cardiovascular side effects of new antidepressants and antipsychotics: new drugs, old concerns?" Curr Pharm Des 10 (2004): 2463-75
  8. Andrews C, Pinner G "Postural hypotension induced by paroxetine." BMJ 316 (1998): 595
View all 8 references

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Moderate

valsartan nebivolol

Applies to: Byvalson (nebivolol / valsartan) and Byvalson (nebivolol / valsartan)

GENERALLY AVOID: In the Valsartan Heart Failure Trial, the combination of valsartan with a beta-blocker and an ACE inhibitor was associated with unfavorable outcomes on morbidity and mortality in heart failure patients. The mechanism is unknown.

MANAGEMENT: The manufacturer recommends that the triple combination of valsartan with a beta-blocker and an ACE inhibitor be avoided in heart failure patients.

References

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  2. Cerner Multum, Inc. "Australian Product Information." O 0

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Drug and food interactions

Moderate

lidocaine food

Applies to: FBL Kit (baclofen / flurbiprofen / lidocaine topical)

MONITOR: Grapefruit and grapefruit juice may increase the plasma concentrations of lidocaine, which is primarily metabolized by the CYP450 3A4 and 1A2 isoenzymes to active metabolites (monoethylglycinexylidide (MEGX) and glycinexylidide). The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Inhibition of hepatic CYP450 3A4 may also contribute. The interaction has not been studied with grapefruit juice but has been reported with oral and/or intravenous lidocaine and potent CYP450 3A4 inhibitor, itraconazole, as well as moderate CYP450 3A4 inhibitor, erythromycin. A pharmacokinetic study of 9 healthy volunteers showed that the administration of lidocaine oral (1 mg/kg single dose) with itraconazole (200 mg daily) increased lidocaine systemic exposure (AUC) and peak plasma concentration (Cmax) by 75% and 55%, respectively. However, no changes were observed in the pharmacokinetics of the active metabolite MEGX. In the same study, when the moderate CYP450 3A4 inhibitor erythromycin (500 mg three times a day) was administered, lidocaine AUC and Cmax increased by 60% and 40%, respectively. By contrast, when intravenous lidocaine (1.5 mg/kg infusion over 60 minutes) was administered on the fourth day of treatment with itraconazole (200 mg once a day) no changes in lidocaine AUC or Cmax were observed. However, when lidocaine (1.5 mg/kg infusion over 60 minutes) was coadministered with erythromycin (500 mg three times a day) in the same study, the AUC and Cmax of the active metabolite MEGX significantly increased by 45-60% and 40%, respectively. The observed differences between oral and intravenous lidocaine when coadministered with CYP450 3A4 inhibitors may be attributed to inhibition of CYP450 3A4 in both the gastrointestinal tract and liver affecting oral lidocaine to a greater extent than intravenous lidocaine. In general, the effects of grapefruit products are concentration-, dose- and preparation-dependent, and can vary widely among brands. Certain preparations of grapefruit (e.g., high dose, double strength) have sometimes demonstrated potent inhibition of CYP450 3A4, while other preparations (e.g., low dose, single strength) have typically demonstrated moderate inhibition. While the clinical significance of this interaction is unknown, increased exposure to lidocaine may lead to serious and/or life-threatening reactions including respiratory depression, convulsions, bradycardia, hypotension, arrhythmias, and cardiovascular collapse.

MONITOR: Certain foods and behaviors that induce CYP450 1A2 may reduce the plasma concentrations of lidocaine. The proposed mechanism is induction of hepatic CYP450 1A2, one of the isoenzymes responsible for the metabolic clearance of lidocaine. Cigarette smoking is known to be a CYP450 1A2 inducer. In one pharmacokinetic study of 4 smokers and 5 non-smokers who received 2 doses of lidocaine (100 mg IV followed by 100 mg orally after a 2-day washout period), the smokers' systemic exposure (AUC) of oral lidocaine was 68% lower than non-smokers. The AUC of IV lidocaine was only 9% lower in smokers compared with non-smokers. Other CYP450 1A2 inducers include cruciferous vegetables (e.g., broccoli, brussels sprouts) and char-grilled meat. Therefore, eating large or variable amounts of these foods could also reduce lidocaine exposure. The clinical impact of smoking and/or the ingestion of foods that induce CYP450 1A2 on lidocaine have not been studied, however, a loss of efficacy may occur.

MANAGEMENT: Caution is recommended if lidocaine is to be used in combination with grapefruit and grapefruit juice. Monitoring for lidocaine toxicity and plasma lidocaine levels may also be advised, and the lidocaine dosage adjusted as necessary. Patients who smoke and/or consume cruciferous vegetables may be monitored for reduced lidocaine efficacy.

References

  1. Huet PM, LeLorier J "Effects of smoking and chronic hepatitis B on lidocaine and indocyanine green kinetics" Clin Pharmacol Ther 28 (1980): 208-15
  2. "Product Information. Lidocaine Hydrochloride (lidocaine)." Hospira Inc. (2024):
  3. "Product Information. Lidocaine Hydrochloride (lidocaine)." Hospira Healthcare Corporation (2015):
  4. "Product Information. Lidocaine Hydrochloride (lidocaine)." Hameln Pharma Ltd (2022):
  5. "Product Information. Xylocaine HCl (lidocaine)." Aspen Pharmacare Australia Pty Ltd (2022):
  6. Isohanni MH, Neuvonen PJ, Olkkola KT "Effect of erythromycin and itraconazole on the pharmacokinetics of oral lignocaine https://pubmed.ncbi.nlm.nih.gov/10193676/" (2024):
  7. Isohanni MH, Neuvonen PJ, Olkkola KT "Effect of erythromycin and itraconazole on the pharmacokinetics of intravenous lignocaine https://pubmed.ncbi.nlm.nih.gov/9832299/" (2024):
View all 7 references

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Moderate

baclofen food

Applies to: FBL Kit (baclofen / flurbiprofen / lidocaine topical)

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

  1. Warrington SJ, Ankier SI, Turner P "Evaluation of possible interactions between ethanol and trazodone or amitriptyline." Neuropsychobiology 15 (1986): 31-7
  2. 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):
  3. "Product Information. Fycompa (perampanel)." Eisai Inc (2012):
  4. "Product Information. Rexulti (brexpiprazole)." Otsuka American Pharmaceuticals Inc (2015):
View all 4 references

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Moderate

valsartan food

Applies to: Byvalson (nebivolol / valsartan)

GENERALLY AVOID: Moderate-to-high dietary intake of potassium, especially salt substitutes, may increase the risk of hyperkalemia in some patients who are using angiotensin II receptor blockers (ARBs). ARBs can promote hyperkalemia through inhibition of angiotensin II-induced aldosterone secretion. Patients with diabetes, heart failure, dehydration, or renal insufficiency have a greater risk of developing hyperkalemia.

MANAGEMENT: Patients should receive dietary counseling and be advised to not use potassium-containing salt substitutes or over-the-counter potassium supplements without consulting their physician. If salt substitutes are used concurrently, regular monitoring of serum potassium levels is recommended. Patients should also be advised to seek medical attention if they experience symptoms of hyperkalemia such as weakness, irregular heartbeat, confusion, tingling of the extremities, or feelings of heaviness in the legs.

References

  1. "Product Information. Cozaar (losartan)." Merck & Co., Inc PROD (2001):
  2. "Product Information. Diovan (valsartan)." Novartis Pharmaceuticals PROD (2001):

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Moderate

flurbiprofen food

Applies to: FBL Kit (baclofen / flurbiprofen / lidocaine topical)

GENERALLY AVOID: The concurrent use of aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) and ethanol may lead to gastrointestinal (GI) blood loss. The mechanism may be due to a combined local effect as well as inhibition of prostaglandins leading to decreased integrity of the GI lining.

MANAGEMENT: Patients should be counseled on this potential interaction and advised to refrain from alcohol consumption while taking aspirin or NSAIDs.

References

  1. "Product Information. Motrin (ibuprofen)." Pharmacia and Upjohn PROD (2002):

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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.

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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.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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