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Drug Interactions between Chem Mart Nasal Decongestant Capsule and PhenazoForte Plus

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

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Interactions between your drugs

Moderate

butabarbital charcoal

Applies to: PhenazoForte Plus (butabarbital / hyoscyamine / phenazopyridine) and Chem Mart Nasal Decongestant Capsule (charcoal)

GENERALLY AVOID: Charcoal may reduce the absorption of many drugs and can absorb enterohepatically circulated drugs. Clinical utility may be the reduction either of the effects or of the toxicity of many drugs. Activated charcoal may adsorb any therapeutic agents administered while it is in the gastrointestinal tract.

MANAGEMENT: The regular ingestion of charcoal should be avoided by patients requiring maintenance medications. If concomitant use is necessary, the dosage or route of administration may need to be altered.

References

  1. Decker WJ, Shpall RA, Corby DG "Inhibition of aspirin absorption by activated charcoal and apomorphine." Clin Pharmacol Ther 10 (1969): 710-3
  2. Knadler MP, Bergstrom RF, Callaghan JT, Obermeyer BD, Rubin A "Absorption studies of the H2-blocker nizatidine." Clin Pharmacol Ther 42 (1987): 514-20
  3. Wing LM, Miners JO, Birkett DJ, et al. "Lidocaine disposition: sex differences and effects of cimetidine." Clin Pharmacol Ther 35 (1984): 695-701
  4. Scheufler E, Bos I "Influence of peroral charcoal on pharmacokinetics and intestinal toxicity of intravenously given methotrexate." Arch Int Pharmacodyn Ther 261 (1983): 180-5
  5. Gadgil SD, Damle SR, Advani SH, Vaidya AB "Effect of activated charcoal on the pharmacokinetics of high-dose methotrexate." Cancer Treat Rep 66 (1982): 1169-71
  6. Park GD, Spector R, Goldberg MJ, Johnson GF "Expanded role of charcoal therapy in the poisoned and overdosed patient." Arch Intern Med 146 (1986): 969-73
  7. Watson WA "Factors influencing the clinical efficacy of activated charcoal." Drug Intell Clin Pharm 21 (1987): 160-6
  8. Kivisto KT, Neuvonen PJ "The effect of cholestyramine and activated charcoal on glipizide absorption." Br J Clin Pharmacol 30 (1990): 733-6
  9. Dolgin JG, Nix DE, Sanchez J, Watson WA "Pharmacokinetic simulation of the effect of multiple-dose activated charcoal in phenytoin poisoning: report of two pediatric cases." DICP 25 (1991): 646-9
  10. Rowden AM, Spoor JE, Bertino JS, Jr "The effect of activated charcoal on phenytoin pharmacokinetics." Ann Emerg Med 19 (1990): 1144-7
  11. Farrar HC, Herold DA, Reed MD "Acute valproic acid intoxication: enhanced drug clearance with oral-activated charcoal." Crit Care Med 21 (1993): 299-301
  12. Howard CE, Roberts RS, Ely DS, Moye RA "Use of multiple-dose activated charcoal in phenytoin toxicity." Ann Pharmacother 28 (1994): 201-3
  13. Chernish SM, Wolen RL, Rodda BE "Adsorption of propoxyphene hydrochloride by activated charcoal." Clin Toxicol 5 (1972): 317-29
  14. Glab WN, Corby DG, Decker WJ, Coldiron VR "Decreased absorption of propoxyphene by activated charcoal." J Toxicol Clin Toxicol 19 (1982): 129-38
  15. Karkkainen S, Neuvonen PJ "Effect of oral charcoal and urine pH on dextropropoxyphene pharmacokinetics." Int J Clin Pharmacol Ther Toxicol 23 (1985): 219-25
  16. Wakabayashi Y, Maruyama S, Hachimura K, Ohwada T "Activated charcoal interrupts enteroenteric circulation of phenobarbital." J Toxicol Clin Toxicol 32 (1994): 419-24
  17. Reed MD "Oral activated charcoal therapy." Am J Emerg Med 6 (1988): 318
  18. Neuvonen PJ "Clinical pharmacokinetics of oral activated charcoal in acute intoxications." Clin Pharmacokinet 7 (1982): 465-89
  19. Naveau S, Bonhomme L, Preaux N, Chaput JC "A pure charcoal suspension for colonoscopic tattoo." Gastrointest Endosc 37 (1991): 624-5
  20. Ilkhanipour K, Yealy DM, Krenzelok EP "Activated charcoal surface area and its role in multiple-dose charcoal therapy." Am J Emerg Med 11 (1993): 583-5
  21. Saetta JP "Gastric decontaminating procedures: is it time to call a stop?" J R Soc Med 86 (1993): 396-9
  22. Orisakwe OE "Activated charcoal: is failure to use it negligence or ignorance?" South Med J 87 (1994): 165-8
  23. Herrington AM, Clifton GD "Toxicology and management of acute drug ingestions in adults." Pharmacotherapy 15 (1995): 182-200
  24. Bonuccelli U, Piccini P, Del Dotto P, Pavese N, D'Antonio P, Muratorio A "Apomorphine test in de novo Parkinson's disease." Funct Neurol 7 (1992): 295-8
  25. "Product Information. Trileptal (oxcarbazepine)." Novartis Pharmaceuticals PROD (2001):
View all 25 references

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Drug and food interactions

Major

butabarbital food

Applies to: PhenazoForte Plus (butabarbital / hyoscyamine / phenazopyridine)

GENERALLY AVOID: Concurrent acute use of barbiturates and ethanol may result in additive CNS effects, including impaired coordination, sedation, and death. Tolerance of these agents may occur with chronic use. The mechanism is related to inhibition of microsomal enzymes acutely and induction of hepatic microsomal enzymes chronically.

MANAGEMENT: The combination of ethanol and barbiturates should be avoided.

References

  1. Gupta RC, Kofoed J "Toxological statistics for barbiturates, other sedatives, and tranquilizers in Ontario: a 10-year survey." Can Med Assoc J 94 (1966): 863-5
  2. Misra PS, Lefevre A, Ishii H, Rubin E, Lieber CS "Increase of ethanol, meprobamate and pentobarbital metabolism after chronic ethanol administration in man and in rats." Am J Med 51 (1971): 346-51
  3. Saario I, Linnoila M "Effect of subacute treatment with hypnotics, alone or in combination with alcohol, on psychomotor skills related to driving." Acta Pharmacol Toxicol (Copenh) 38 (1976): 382-92
  4. Stead AH, Moffat AC "Quantification of the interaction between barbiturates and alcohol and interpretation of fatal blood concentrations." Hum Toxicol 2 (1983): 5-14
  5. Seixas FA "Drug/alcohol interactions: avert potential dangers." Geriatrics 34 (1979): 89-102
View all 5 references

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Moderate

hyoscyamine food

Applies to: PhenazoForte Plus (butabarbital / hyoscyamine / phenazopyridine)

GENERALLY AVOID: Use of anticholinergic agents with alcohol may result in sufficient impairment of attention so as to render driving and operating machinery more hazardous. In addition, the potential for abuse may be increased with the combination. The mechanism of interaction is not established but may involve additive depressant effects on the central nervous system. No effect of oral propantheline or atropine on blood alcohol levels was observed in healthy volunteers when administered before ingestion of a standard ethanol load. However, one study found impairment of attention in subjects given atropine 0.5 mg or glycopyrrolate 1 mg in combination with alcohol.

MANAGEMENT: Alcohol should generally be avoided during therapy with anticholinergic agents. Patients should be counseled to avoid activities requiring mental alertness until they know how these agents affect them.

References

  1. Linnoila M "Drug effects on psychomotor skills related to driving: interaction of atropine, glycopyrrhonium and alcohol." Eur J Clin Pharmacol 6 (1973): 107-12

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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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