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Drug Interactions between Rifadin and Saleto

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

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Interactions between your drugs

Moderate

aspirin salicylamide

Applies to: Saleto (acetaminophen / aspirin / caffeine / salicylamide) and Saleto (acetaminophen / aspirin / caffeine / salicylamide)

MONITOR: The combined use of low-dose or high-dose aspirin with other nonsteroidal anti-inflammatory drugs (NSAIDs) may increase the potential for serious gastrointestinal (GI) toxicity, including inflammation, bleeding, ulceration, and perforation. Aspirin at anti-inflammatory dosages or higher may also decrease the plasma concentrations of many NSAIDs. The decreases have ranged from none or small (piroxicam, meloxicam, naproxen, tolmetin) to substantial (flurbiprofen, ibuprofen). However, the therapeutic response does not appear to be affected. Investigators theorize that aspirin may displace NSAIDs from plasma protein binding sites, resulting in increased concentration of unbound, or free, drug available for clearance. The increase in NSAID free fraction, and possibly some contributory anti-inflammatory effect from aspirin, may account for the lack of overall effect on therapeutic response.

MANAGEMENT: Caution is advised if aspirin, particularly at anti-inflammatory dosages, is used with other NSAIDs. Concomitant administration of NSAIDs is considered contraindicated or not recommended with aspirin at analgesic/anti-inflammatory dosages by many NSAID manufacturers. During concomitant therapy, patients should be advised to take the medications with food and to immediately report signs and symptoms of GI ulceration and bleeding such as abdominal pain, bloating, sudden dizziness or lightheadedness, nausea, vomiting, hematemesis, anorexia, and melena.

References

  1. Furst DE, Sarkissian E, Blocka K, et al. (1987) "Serum concentrations of salicylate and naproxen during concurrent therapy in patients with rheumatoid arthritis." Arthritis Rheum, 30, p. 1157-61
  2. Abdel-Rahman MS, Reddi AS, Curro FA, Turkall RM, Kadry AM, Hansrote JA (1991) "Bioavailability of aspirin and salicylamide following oral co-administration in human volunteers." Can J Physiol Pharmacol, 69, p. 1436-42
  3. Gruber CM (1976) "Clinical pharmacology of fenoprofen: a review." J Rheumatol, 2, p. 8-17
  4. Cressman WA, Wortham GF, Plostnieks J (1976) "Absorption and excretion of tolemetin in man." Clin Pharmacol Ther, 19, p. 224-33
  5. Kwan KC, Breault GO, Davis RL, et al. (1978) "Effects of concomitant aspirin administration on the pharmacokinetics of indomethacin in man." J Pharmacokinet Biopharm, 6, p. 451-76
  6. Rubin A, Rodda BE, Warrick P, Gruber CM Jr, Ridolfo RS (1973) "Interactions of aspirin with nonsteroidal antiinflammatory drugs in man." Arthritis Rheum, 16, p. 635-45
  7. Brooks PM, Walker JJ, Bell MA, Buchanan WW, Rhymer AR (1975) "Indomethacin--aspirin interaction: a clinical appraisal." Br Med J, 3, p. 69-11
  8. Tempero KF, Cirillo VJ, Steelman SL (1977) "Diflunisal: a review of pharmacokinetic and pharmacodynamic properties, drug interactions, and special tolerability studies in humans." Br J Clin Pharmacol, 4, s31-6
  9. Willis JV, Kendall MJ, Jack DB (1980) "A study of the effect of aspirin on the pharmacokinetics of oral and intravenous diclofenac sodium." Eur J Clin Pharmacol, 18, p. 415-8
  10. Muller FO, Hundt HK, Muller DG (1977) "Pharmacokinetic and pharmacodynamic implications of long-term administration of non-steroidal anti-inflammatory agents." Int J Clin Pharmacol Biopharm, 15, p. 397-402
  11. Hobbs DC, Twomey TM (1979) "Piroxicam pharmacokinetics in man: aspirin and antacid interaction studies." J Clin Pharmacol, 19, p. 270-81
  12. Pawlotsky Y, Chales G, Grosbois B, Miane B, Bourel M (1978) "Comparative interaction of aspirin with indomethacin and sulindac in chronic rheumatic diseases." Eur J Rheumatol Inflamm, 1, p. 18-20
  13. Segre EJ, Chaplin M, Forchielli E, Runkel R, Sevelius H (1973) "Naproxen-aspirin interactions in man." Clin Pharmacol Ther, 15, p. 374-9
  14. Bird HA, Hill J, Leatham P, Wright V (1986) "A study to determine the clinical relevance of the pharmacokinetic interaction between aspirin and diclofenac." Agents Actions, 18, p. 447-9
  15. Brooks PM, Khong T (1977) "Flurbiprofen-aspirin interaction: a double-blind crossover study." Curr Med Res Opin, 5, p. 53-7
  16. Grennan DM, Ferry DG, Ashworth ME, Kenny RE, Mackinnnon M (1979) "The aspirin-ibuprofen interaction in rheumatoid arthritis." Br J Clin Pharmacol, 8, p. 497-503
  17. Williams RL, Upton RA, Buskin JN, Jones RM (1981) "Ketoprofen-aspirin interactions." Clin Pharmacol Ther, 30, p. 226-31
  18. Kaiser DG, Brooks CD, Lomen PL (1986) "Pharmacokinetics of flurbiprofen." Am J Med, 80, p. 10-5
  19. Kahn SB, Hubsher JA (1983) "Effects of oxaprozin alone or in combination with aspirin on hemostasis and plasma protein binding." J Clin Pharmacol, 23, p. 139-46
  20. (2001) "Product Information. Mobic (meloxicam)." Boehringer-Ingelheim
  21. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  22. Cerner Multum, Inc. "Australian Product Information."
View all 22 references

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Minor

rifAMPin acetaminophen

Applies to: Rifadin (rifampin) and Saleto (acetaminophen / aspirin / caffeine / salicylamide)

Rifampin may slightly decrease the therapeutic effects of acetaminophen, although at usual doses, no intervention appears to be necessary. Additionally, rifampin may increase the risk of hepatotoxicity in patients taking acetaminophen and isoniazid.

References

  1. Prescott LF, Critchley JA, Balali-Mood M, Pentland B (1981) "Effects of microsomal enzyme induction on paracetamol metabolism in man." Br J Clin Pharmacol, 12, p. 149-53
  2. Bock KW, Wiltfang J, Blume R, Ullrich D, Bircher J (1987) "Paracetamol as a test drug to determine glucuronide formation in man: effects of inducers and of smoking." Eur J Clin Pharmacol, 31, p. 677-83
  3. Nolan CM, Sandblom RE, Thummel KE, Slattery JT, Nelson SD (1994) "Hepatotoxicity associated with acetaminophen usage in patients receiving multiple drug therapy for tuberculosis." Chest, 105, p. 408-11

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Minor

aspirin caffeine

Applies to: Saleto (acetaminophen / aspirin / caffeine / salicylamide) and Saleto (acetaminophen / aspirin / caffeine / salicylamide)

One study has reported that coadministration of caffeine and aspirin lead to a 25% increase in the rate of appearance and 17% increase in maximum concentration of salicylate in the plasma. A significantly higher area under the plasma concentration time curve of salicylate was also reported when both drugs were administered together. The exact mechanism of this interaction has not been specified. Physicians and patients should be aware that coadministration of aspirin and caffeine may lead to higher salicylate levels faster.

References

  1. Yoovathaworn KC, Sriwatanakul K, Thithapandha A (1986) "Influence of caffeine on aspirin pharmacokinetics." Eur J Drug Metab Pharmacokinet, 11, p. 71-6

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Drug and food interactions

Major

acetaminophen food

Applies to: Saleto (acetaminophen / aspirin / caffeine / salicylamide)

GENERALLY AVOID: Chronic, excessive consumption of alcohol may increase the risk of acetaminophen-induced hepatotoxicity, which has included rare cases of fatal hepatitis and frank hepatic failure requiring liver transplantation. The proposed mechanism is induction of hepatic microsomal enzymes during chronic alcohol use, which may result in accelerated metabolism of acetaminophen and increased production of potentially hepatotoxic metabolites.

MANAGEMENT: In general, chronic alcoholics should avoid regular or excessive use of acetaminophen. Alternative analgesic/antipyretic therapy may be appropriate in patients who consume three or more alcoholic drinks per day. However, if acetaminophen is used, these patients should be cautioned not to exceed the recommended dosage (maximum 4 g/day in adults and children 12 years of age or older).

References

  1. Kaysen GA, Pond SM, Roper MH, Menke DJ, Marrama MA (1985) "Combined hepatic and renal injury in alcoholics during therapeutic use of acetaminophen." Arch Intern Med, 145, p. 2019-23
  2. O'Dell JR, Zetterman RK, Burnett DA (1986) "Centrilobular hepatic fibrosis following acetaminophen-induced hepatic necrosis in an alcoholic." JAMA, 255, p. 2636-7
  3. Seeff LB, Cuccherini BA, Zimmerman HJ, Adler E, Benjamin SB (1986) "Acetaminophen hepatotoxicity in alcoholics." Ann Intern Med, 104, p. 399-404
  4. Thummel KE, Slattery JT, Nelson SD (1988) "Mechanism by which ethanol diminishes the hepatotoxicity of acetaminophen." J Pharmacol Exp Ther, 245, p. 129-36
  5. McClain CJ, Kromhout JP, Peterson FJ, Holtzman JL (1980) "Potentiation of acetaminophen hepatotoxicity by alcohol." JAMA, 244, p. 251-3
  6. Kartsonis A, Reddy KR, Schiff ER (1986) "Alcohol, acetaminophen, and hepatic necrosis." Ann Intern Med, 105, p. 138-9
  7. Prescott LF, Critchley JA (1983) "Drug interactions affecting analgesic toxicity." Am J Med, 75, p. 113-6
  8. (2002) "Product Information. Tylenol (acetaminophen)." McNeil Pharmaceutical
  9. Whitcomb DC, Block GD (1994) "Association of acetaminopphen hepatotoxicity with fasting and ethanol use." JAMA, 272, p. 1845-50
  10. Bonkovsky HL (1995) "Acetaminophen hepatotoxicity, fasting, and ethanol." JAMA, 274, p. 301
  11. Nelson EB, Temple AR (1995) "Acetaminophen hepatotoxicity, fasting, and ethanol." JAMA, 274, p. 301
  12. Zimmerman HJ, Maddrey WC (1995) "Acetaminophen (paracetamol) hepatotoxicity with regular intake of alcohol: analysis of instances of therapeutic misadventure." Hepatology, 22, p. 767-73
View all 12 references

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Moderate

rifAMPin food

Applies to: Rifadin (rifampin)

GENERALLY AVOID: Concurrent use of rifampin in patients who ingest alcohol daily may result in an increased incidence of hepatotoxicity. The increase in hepatotoxicity may be due to an additive risk as both alcohol and rifampin are individually associated with this adverse reaction. However, the exact mechanism has not been established.

ADJUST DOSING INTERVAL: Administration with food may reduce oral rifampin absorption, increasing the risk of therapeutic failure or resistance. In a randomized, four-period crossover phase I study of 14 healthy male and female volunteers, the pharmacokinetics of single dose rifampin 600 mg were evaluated under fasting conditions and with a high-fat meal. Researchers observed that administration of rifampin with a high-fat meal reduced rifampin peak plasma concentration (Cmax) by 36%, nearly doubled the time to reach peak plasma concentration (Tmax) but reduced overall exposure (AUC) by only 6%.

MANAGEMENT: The manufacturer of oral forms of rifampin recommends administration on an empty stomach, 30 minutes before or 2 hours after meals. Patients should be encouraged to avoid alcohol or strictly limit their intake. Patients who use alcohol and rifampin concurrently or have a history of alcohol use disorder may require additional monitoring of their liver function during treatment with rifampin.

References

  1. (2022) "Product Information. Rifampin (rifAMPin)." Akorn Inc
  2. (2022) "Product Information. Rifampicin (rifampicin)." Mylan Pharmaceuticals Inc
  3. (2023) "Product Information. Rifadin (rifampicin)." Sanofi
  4. (2024) "Product Information. Rifadin (rifaMPICin)." Sanofi-Aventis Australia Pty Ltd
  5. Peloquin CA, Namdar R, Singleton MD, Nix DE (2024) Pharmacokinetics of rifampin under fasting conditions, with food, and with antacids https://pubmed.ncbi.nlm.nih.gov/9925057/
  6. (2019) "Product Information. Rofact (rifampin)." Bausch Health, Canada Inc.
View all 6 references

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Moderate

aspirin food

Applies to: Saleto (acetaminophen / aspirin / caffeine / salicylamide)

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

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Moderate

salicylamide food

Applies to: Saleto (acetaminophen / aspirin / caffeine / salicylamide)

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

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Minor

caffeine food

Applies to: Saleto (acetaminophen / aspirin / caffeine / salicylamide)

The effect of grapefruit juice on the pharmacologic activity of caffeine is controversial. One report suggests that grapefruit juice increases the effect of caffeine. The proposed mechanism is inhibition of cytochrome P-450 metabolism of caffeine. However, a well-conducted pharmacokinetic/pharmacodynamic study did not demonstrate this effect. The clinical significance of this potential interaction is unknown.

References

  1. (1995) "Grapefruit juice interactions with drugs." Med Lett Drugs Ther, 37, p. 73-4
  2. Maish WA, Hampton EM, Whitsett TL, Shepard JD, Lovallo WR (1996) "Influence of grapefruit juice on caffeine pharmacokinetics and pharmacodynamics." Pharmacotherapy, 16, p. 1046-52

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Minor

aspirin food

Applies to: Saleto (acetaminophen / aspirin / caffeine / salicylamide)

One study has reported that coadministration of caffeine and aspirin lead to a 25% increase in the rate of appearance and 17% increase in maximum concentration of salicylate in the plasma. A significantly higher area under the plasma concentration time curve of salicylate was also reported when both drugs were administered together. The exact mechanism of this interaction has not been specified. Physicians and patients should be aware that coadministration of aspirin and caffeine may lead to higher salicylate levels faster.

References

  1. Yoovathaworn KC, Sriwatanakul K, Thithapandha A (1986) "Influence of caffeine on aspirin pharmacokinetics." Eur J Drug Metab Pharmacokinet, 11, p. 71-6

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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.

See also

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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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