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UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate) Disease Interactions

There are 32 disease interactions with UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate):

Major

Anticholinergics (Includes UR N-C) ↔ autonomic neuropathy

Severe Potential Hazard, High plausibility. Applies to: Autonomic Neuropathy

Agents with anticholinergic activity can exacerbate many of the manifestations of autonomic neuropathy, including tachycardia, anhidrosis, bladder atony, obstipation, dry mouth and eyes, cycloplegia and blurring of vision, and sexual impotence in males. Therapy with antimuscarinic agents and higher dosages of antispasmodic agents (e.g., dicyclomine or oxybutynin) should be administered cautiously in patients with autonomic neuropathy.

References

  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
Major

Anticholinergics (Includes UR N-C) ↔ GI obstruction

Severe Potential Hazard, High plausibility. Applies to: Gastrointestinal Obstruction, Esophageal Obstruction

Anticholinergics are contraindicated in patients with obstructive diseases such as achalasia, esophageal stricture or stenosis, pyloroduodenal stenosis, stenosing peptic ulcer, pyloric obstruction, and paralytic ileus. Anticholinergics may further suppress intestinal motility with resultant precipitation or aggravation of toxic megacolon.

References

  1. "Product Information. Antivert (meclizine)." Roerig Division, New York, NY.
  2. "Azatadine (optimine)--a new antihistamine." Med Lett Drugs Ther 19 (1977): 77-9
  3. "Product Information. Chlortrimeton (chlorpheniramine)." Schering-Plough, Liberty Corner, NJ.
  4. Blamoutier J "Comparative trial of two antihistamines, mequitazine and brompheniramine." Curr Med Res Opin 5 (1978): 366-70
  5. "Product Information. Optimine (azatadine)." Schering Laboratories, Kenilworth, NJ.
  6. Bantz EW, Dolen WK, Chadwick EW, Nelson HS "Chronic chlorpheniramine therapy: subsensitivity, drug metabolism, and compliance." Ann Allergy 59 (1987): 341-6
  7. "Product Information. Cogentin (benztropine)." Merck & Co, Inc, West Point, PA.
  8. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  9. "Product Information. Periactin (cyproheptadine)." Merck & Co, Inc, West Point, PA.
  10. "Product Information. Benadryl (diphenhydramine)." Parke-Davis, Morris Plains, NJ.
  11. "Product Information. Tavist (clemastine)." Sandoz Pharmaceuticals Corporation, East Hanover, NJ.
  12. "Product Information. Artane (trihexyphenidyl)." Lederle Laboratories, Wayne, NJ.
  13. Mevorach D "Adverse effects of atropine sulfate autoinjection." Ann Pharmacother 26 (1992): 564
  14. Simons FE, Frith EM, Simons KJ "The pharmacokinetics and antihistaminic effects of brompheniramine." J Allergy Clin Immunol 70 (1982): 458-64
  15. "Product Information. Poly-Histine-D (pyrilamine)." Bock Pharmaceutical Company, St. Louis, MO.
  16. "Product Information. Dimetane (brompheniramine)." Wyeth-Ayerst Laboratories, Philadelphia, PA.
  17. "Product Information. Phenergan (promethazine)." Wyeth-Ayerst Laboratories, Philadelphia, PA.
View all 17 references
Major

Anticholinergics (Includes UR N-C) ↔ glaucoma

Severe Potential Hazard, High plausibility. Applies to: Glaucoma/Intraocular Hypertension

Anticholinergic agents are contraindicated in patients with primary glaucoma, a tendency toward glaucoma (narrow anterior chamber angle), or adhesions (synechiae) between the iris and lens, as well as for the elderly and others in whom undiagnosed glaucoma or excessive pressure in the eye may be present. Because anticholinergics cause mydriasis, they may exacerbate these conditions.

References

  1. "Product Information. Dimetane (brompheniramine)." Wyeth-Ayerst Laboratories, Philadelphia, PA.
  2. Pecora JL "Malignant glaucoma worsened by miotics in a postoperative angle- closure glaucoma patient." Ann Ophthalmol 11 (1979): 1412-4
  3. "Product Information. Chlortrimeton (chlorpheniramine)." Schering-Plough, Liberty Corner, NJ.
  4. Schuller DE, Turkewitz D "Adverse effects of antihistamines." Postgrad Med 79 (1986): 75-86
  5. "Product Information. Moban (molindone)." Gate Pharmaceuticals, Sellersville, PA.
  6. "Product Information. Phenergan (promethazine)." Wyeth-Ayerst Laboratories, Philadelphia, PA.
  7. Goldstein JH "Effects of drugs on cornea, conjunctiva, and lids." Int Ophthalmol Clin 11 (1971): 13-34
  8. "Product Information. Poly-Histine-D (pyrilamine)." Bock Pharmaceutical Company, St. Louis, MO.
  9. "Product Information. Compazine (prochlorperazine)." SmithKline Beecham, Philadelphia, PA.
  10. Holland MG "Autonomic drugs in ophthalmology: some problems and promises. Section II: Anticholinergic drugs." Ann Ophthalmol 6 (1974): 661-4
  11. "Product Information. Orap Tablets (pimozide)." Gate Pharmaceuticals, Sellersville, PA.
  12. "Product Information. Thorazine (chlorpromazine)." SmithKline Beecham, Philadelphia, PA.
  13. "Product Information. Benadryl (diphenhydramine)." Parke-Davis, Morris Plains, NJ.
  14. O'Connor PS, Mumma JV "Atropine toxicity." Am J Ophthalmol 99 (1985): 613-4
  15. Berdy GJ, Berdy SS, Odin LS, Hirst LW "Angle closure glaucoma precipitated by aerosolized atropine." Arch Intern Med 151 (1991): 1658-60
  16. "Product Information. Optimine (azatadine)." Schering Laboratories, Kenilworth, NJ.
  17. Kanto J "New aspects in the use of atropine." Int J Clin Pharmacol Ther Toxicol 21 (1983): 92-4
  18. "Product Information. Tavist (clemastine)." Sandoz Pharmaceuticals Corporation, East Hanover, NJ.
  19. Clearkin LG "Angle closure glaucoma precipitated by atropine." Arch Intern Med 152 (1992): 880
  20. "Product Information. Periactin (cyproheptadine)." Merck & Co, Inc, West Point, PA.
  21. "Product Information. Artane (trihexyphenidyl)." Lederle Laboratories, Wayne, NJ.
  22. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  23. "Product Information. Cogentin (benztropine)." Merck & Co, Inc, West Point, PA.
View all 23 references
Major

Anticholinergics (Includes UR N-C) ↔ obstructive uropathy

Severe Potential Hazard, High plausibility. Applies to: Urinary Retention

In general, the use of anticholinergic agents is contraindicated in patients with urinary retention and bladder neck obstruction caused by prostatic hypertrophy. Dysuria may occur and may require catheterization. Also, anticholinergic drugs may aggravate partial obstructive uropathy. Caution is advised even when using agents with mild to moderate anticholinergic activity, particularly in elderly patients.

References

  1. "Product Information. Artane (trihexyphenidyl)." Lederle Laboratories, Wayne, NJ.
  2. Schuller DE, Turkewitz D "Adverse effects of antihistamines." Postgrad Med 79 (1986): 75-86
  3. "Product Information. Phenergan (promethazine)." Wyeth-Ayerst Laboratories, Philadelphia, PA.
  4. "Product Information. Moban (molindone)." Gate Pharmaceuticals, Sellersville, PA.
  5. "Product Information. Poly-Histine-D (pyrilamine)." Bock Pharmaceutical Company, St. Louis, MO.
  6. "Product Information. Compazine (prochlorperazine)." SmithKline Beecham, Philadelphia, PA.
  7. Shutt LE, Bowes JB "Atropine and hyoscine." Anaesthesia 34 (1979): 476-90
  8. "Product Information. Antivert (meclizine)." Roerig Division, New York, NY.
  9. "Product Information. Dimetane (brompheniramine)." Wyeth-Ayerst Laboratories, Philadelphia, PA.
  10. "Product Information. Optimine (azatadine)." Schering Laboratories, Kenilworth, NJ.
  11. "Product Information. Tavist (clemastine)." Sandoz Pharmaceuticals Corporation, East Hanover, NJ.
  12. "Product Information. Periactin (cyproheptadine)." Merck & Co, Inc, West Point, PA.
  13. "Product Information. Orap Tablets (pimozide)." Gate Pharmaceuticals, Sellersville, PA.
  14. "Product Information. Thorazine (chlorpromazine)." SmithKline Beecham, Philadelphia, PA.
  15. O'Kelly SW, Spargo PM "Postoperative urinary retention in men." BMJ 302 (1991): 1403-4
  16. "Product Information. Benadryl (diphenhydramine)." Parke-Davis, Morris Plains, NJ.
  17. "Product Information. Zyrtec (cetirizine)." Pfizer US Pharmaceuticals, New York, NY.
  18. "Product Information. Chlortrimeton (chlorpheniramine)." Schering-Plough, Liberty Corner, NJ.
  19. Bantz EW, Dolen WK, Chadwick EW, Nelson HS "Chronic chlorpheniramine therapy: subsensitivity, drug metabolism, and compliance." Ann Allergy 59 (1987): 341-6
  20. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  21. "Product Information. Cogentin (benztropine)." Merck & Co, Inc, West Point, PA.
View all 21 references
Major

Anticholinergics (Includes UR N-C) ↔ reactive airway diseases

Severe Potential Hazard, Moderate plausibility. Applies to: Asthma

The use of systemic anticholinergics is contraindicated in the treatment of lower respiratory tract symptoms including asthma. Muscarinic receptor antagonists reduce bronchial secretions, which can result in decreased fluidity and increased thickening of secretions. However, ipratropium does not produce these effects and can be used safely in treating asthma.

References

  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  2. "Product Information. Antivert (meclizine)." Roerig Division, New York, NY.
  3. Nahata MC, Clotz MA, Krogg EA "Adverse effects of meperidine, promethazine, and chlorpromazine for sedation in pediatric patients." Clin Pediatr (Phila) 24 (1985): 558-60
  4. "Product Information. Phenergan (promethazine)." Wyeth-Ayerst Laboratories, Philadelphia, PA.
  5. "Product Information. Marezine (cyclizine)." Glaxo Wellcome, Research Triangle Park, NC.
View all 5 references
Major

Antimuscarinics (Includes UR N-C) ↔ myasthenia gravis

Severe Potential Hazard, Moderate plausibility. Applies to: Myasthenia Gravis

Because antimuscarinic agents have anticholinergic effects, they are contraindicated in patients with myasthenia gravis. Their use may be appropriate to reduce adverse muscarinic effects caused by an anticholinesterase agent.

References

  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  2. Shutt LE, Bowes JB "Atropine and hyoscine." Anaesthesia 34 (1979): 476-90
Major

Antiperistaltic agents (Includes UR N-C) ↔ infectious diarrhea

Severe Potential Hazard, High plausibility. Applies to: Infectious Diarrhea/Enterocolitis/Gastroenteritis

The use of drugs with antiperistaltic activity (primarily antidiarrheal and antimuscarinic agents, but also antispasmodic agents such as dicyclomine or oxybutynin at high dosages) is contraindicated in patients with diarrhea due to pseudomembranous enterocolitis or enterotoxin-producing bacteria. These drugs may prolong and/or worsen diarrhea associated with organisms that invade the intestinal mucosa, such as toxigenic E. coli, Salmonella and Shigella, and pseudomembranous colitis due to broad-spectrum antibiotics. Other symptoms and complications such as fever, shedding of organisms and extraintestinal illness may also be increased or prolonged. In general, because antiperistaltic agents decrease gastrointestinal motility, they may delay the excretion of infective gastroenteric organisms or toxins and should be used cautiously in patients with any infectious diarrhea, particularly if accompanied by high fever or pus or blood in the stool. Some cough and cold and other combination products may occasionally include antimuscarinic agents for their drying effects and may, therefore, require careful selection when necessary.

References

  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  2. "Product Information. Imodium (loperamide)." Janssen Pharmaceutica, Titusville, NJ.
  3. Walley T, Milson D "Loperamide related toxic megacolon in Clostridium difficile colitis." Postgrad Med J 66 (1990): 582
  4. Brown JW "Toxic megacolon associated with loperamide therapy." JAMA 241 (1979): 501-2
  5. Marshall WF Jr, Rosenthal P, Merritt RJ "Atropine therapy and paralytic ileus in an infant." J Pediatr Gastroenterol Nutr 9 (1989): 532-4
  6. "Lomotil for diarrhea in children." Med Lett Drugs Ther 17 (1975): 104
View all 6 references
Major

Methenamine (Includes UR N-C) ↔ crystalluria

Severe Potential Hazard, High plausibility. Applies to: Renal Dysfunction, Dehydration

The use of methenamine salts (i.e. methenamine hippurate or mandelate), but not the base, is contraindicated in patients with severe renal impairment or dehydration. Methenamine is excreted by the kidney and concentrated in the urine. In patients with low urinary output, the salts can precipitate and cause crystalluria.

References

  1. "Product Information. Mandelamine (methenamine)." Parke-Davis, Morris Plains, NJ.
  2. Gleckman R, Alvarez S, Joubert D, Matthews S "Drug therapy reviews: methenamine mandelate and methenamine hippurate." Am J Hosp Pharm 36 (1979): 1509-12
  3. Klinge E, Mannisto P, Mantyla R, Lamminsivu U, Ottoila P "Pharmacokinetics of methenamine in healthy volunteers." J Antimicrob Chemother 9 (1982): 209-16
  4. Australian Drug Evaluation Committee "Adverse effects of drugs commonly used in the treatment of urinary tract infection." Med J Aust 1 (1972): 435-8
  5. "Product Information. Hiprex (methenamine)." Hoechst Marion-Roussel Inc, Kansas City, MO.
  6. American Medical Association, Division of Drugs and Toxicology "Drug evaluations annual 1994." Chicago, IL: American Medical Association; (1994):
View all 6 references
Major

Methenamine (Includes UR N-C) ↔ gout

Severe Potential Hazard, Moderate plausibility. Applies to: Gout

Methenamine mandelate (salts), should be avoided in patients with gout as it may precipitate urate crystals in their urine. A similar situation may arise in patients with a predisposition to the formation of uric acid stones.

Major

Methenamine (Includes UR N-C) ↔ liver disease

Severe Potential Hazard, High plausibility. Applies to: Liver Disease

The use of methenamine and its salts (i.e. methenamine hippurate or mandelate) is contraindicated in patients with severe hepatic impairment. Methenamine is hydrolyzed to ammonia and formaldehyde in the urine under acidic conditions. Patients with liver disease may already have elevated ammonia levels, which can cause or exacerbate hepatic encephalopathy. Methenamine hippurate has also been associated with isolated cases of transient elevations in serum transaminases. The manufacturer recommends periodic liver function tests during therapy, particularly in patients with preexisting liver dysfunction.

References

  1. "Product Information. Mandelamine (methenamine)." Parke-Davis, Morris Plains, NJ.
  2. American Medical Association, Division of Drugs and Toxicology "Drug evaluations annual 1994." Chicago, IL: American Medical Association; (1994):
  3. Strom J, Jun H "Kinetics of hydrolysis of methenamine." Pharm Bull 23 (1975): 651
  4. Gleckman R, Alvarez S, Joubert D, Matthews S "Drug therapy reviews: methenamine mandelate and methenamine hippurate." Am J Hosp Pharm 36 (1979): 1509-12
  5. "Product Information. Hiprex (methenamine)." Hoechst Marion-Roussel Inc, Kansas City, MO.
View all 5 references
Major

Methylene blue (Includes UR N-C) ↔ methemoglobinemia in G-6-PD

Severe Potential Hazard, High plausibility. Applies to: G-6-PD Deficiency

The use of methylene blue is contraindicated for the treatment of methemoglobinemia in patients with glucose-6-phosphate deficiency (G-6-PD). Methylene blue will not reverse the condition in patients with G-6-PD and may precipitate acute hemolysis in these patients.

References

  1. "Product Information. Urised Tablets (methylene blue)." Polymedica Pharmaceuticals USA Inc, Woburn, MA.
Major

Salicylates (Includes UR N-C) ↔ GI toxicity

Severe Potential Hazard, High plausibility. Applies to: Peptic Ulcer, Duodenitis/Gastritis, Gastrointestinal Hemorrhage, Gastrointestinal Perforation, History - Peptic Ulcer, Alcoholism, Colitis/Enteritis (Noninfectious), Colonic Ulceration

Salicylates, particularly aspirin, can cause dose-related gastrointestinal bleeding and mucosal damage, which may occur independently of each other. Occult, often asymptomatic GI blood loss is quite common with usual dosages of aspirin and stems from the drug's local effect on the GI mucosa. During chronic therapy, this type of bleeding may occasionally produce iron deficiency anemia. In contrast, major upper GI bleeding rarely occurs except in patients with active peptic ulcers or recent GI bleeding. However, these patients generally do not experience greater occult blood loss than healthy patients following small doses of aspirin. Mucosal damage associated with the use of salicylates may lead to development of peptic ulcers with or without bleeding, reactivation of latent ulcers, and ulcer perforation. Therapy with salicylates and related agents such as salicylamide should be considered and administered cautiously in patients with a history of GI disease or alcoholism, particularly if they are elderly and/or debilitated, since such patients may be more susceptible to the GI toxicity of these drugs and seem to tolerate ulceration and bleeding less well than other individuals. Extreme caution and thorough assessment of risks and benefits are warranted in patients with active or recent GI bleeding or lesions. Whenever possible, especially if prolonged use is anticipated, treatment with non-ulcerogenic agents should be attempted first. If salicylates are used, close monitoring for toxicity is recommended. Some adverse GI effects may be minimized by administration with high dosages of antacids, use of enteric-coated or extended-release formulations, and/or concurrent use of a histamine H2-receptor antagonist or a cytoprotective agent such as misoprostol. Patients with active peptic ulceration or GI bleeding treated with salicylates should generally be administered a concomitant anti-ulcer regimen.

References

  1. Lanas A, Serrano P, Bajador E, Esteva F, Benito R, Sainz R "Evidence of aspirin use in both upper and lower gastrointestinal perforation." Gastroenterology 112 (1997): 683-9
  2. Savon JJ, Allen ML, Dimarino AJ, Hermann GA, Krum RP "Gastrointestinal blood loss with low dose (325 mg) plain and enteric-coated aspirin administration." Am J Gastroenterol 90 (1995): 581-5
  3. "Product Information. Salflex (salsalate)." Carnrick Laboratories Inc, Cedar Knolls, NJ.
  4. American Medical Association, Division of Drugs and Toxicology "Drug evaluations annual 1994." Chicago, IL: American Medical Association; (1994):
  5. Stalnikowiczdarvasi R "Gastrointestinal bleeding during low-dose aspirin administration for prevention of arterial occlusive events: a critical analysis." J Clin Gastroenterol 21 (1995): 13-6
  6. Bergmann JF, Chassany O, Geneve J, Abiteboul M, Caulin C, Segrestaa JM "Endoscopic evaluation of the effect of ketoprofen, ibuprofen and aspirin on the gastroduodenal mucosa." Eur J Clin Pharmacol 42 (1992): 685-8
  7. Marks RD "Aspirin use and fecal occult blood testing." Am J Med 100 (1996): 596-7
  8. Mehta S, Dasarathy S, Tandon RK, Mathur M, Malaviya AN "A prospective randomized study of the injurious effects of aspirin and naproxen on the gastroduodenal mucosa in patients with rheumatoid arthritis." Am J Gastroenterol 87 (1992): 996-1000
  9. Naschitz JE, Yeshurun D, Odeh M, Bassan H, Rosner I, Stermer E, Levy N "Overt gastrointestinal bleeding in the course of chronic low-dose aspirin administration for secondary prevention of arterial occlusive disease." Am J Gastroenterol 85 (1990): 408-11
  10. Weil J, Colinjones D, Langman M, Lawson D, Logan R, Murphy M, Rawlins M, Vessey M, Wainwright P "Prophylactic aspirin and risk of peptic ulcer bleeding." BMJ 310 (1995): 827-30
  11. "Product Information. Ecotrin (aspirin)." SmithKline Beecham, Philadelphia, PA.
  12. Graham DY, Smith JL "Aspirin and the stomach." Ann Intern Med 104 (1986): 390-8
  13. Roderick PJ, Wilkes HC, Meade TW "The gastrointestinal toxicity of aspirin: an overview of randomised controlled trials." Br J Clin Pharmacol 35 (1993): 219-26
  14. Prichard PJ, Kitchingman GK, Walt RP, Daneshmend TK, Hawkey CJ "Human gastric mucosal bleeding induced by low dose aspirin, but not warfarin." BMJ 298 (1989): 493-6
  15. Wilcox CM, Shalek KA, Cotsonis G "Striking prevalence of over-the-counter nonsteroidal anti- inflammatory drug use in patients with upper gastrointestinal hemorrhage." Arch Intern Med 154 (1994): 42-6
  16. Sabesin SM, Boyce HW Jr, King CE, Mann JA, Ruoff G, Wall E "Comparative evaluation of gastrointestinal intolerance produced by plain and tri-buffered aspirin tablets." Am J Gastroenterol 83 (1988): 1220-5
  17. Silagy CA, McNeil JJ, Donnan GA, Tonkin AM, Worsam B, Campion K "Adverse effects of low-dose aspirin in a healthy elderly population." Clin Pharmacol Ther 54 (1993): 84-9
  18. Greenberg PD, Cello JP, Rockey DC "Asymptomatic chronic gastrointestinal blood loss in patients taking aspirin or warfarin for cardiovascular disease." Am J Med 100 (1996): 598-604
  19. Levy M, Miller DR, Kaufman DW, Siskind V, Schwingl P, Rosenberg L, Strom B, Shapiro S "Major upper gastrointestinal tract bleeding. Relation to the use of aspirin and other nonnarcotic analgesics." Arch Intern Med 148 (1988): 281-5
View all 19 references
Major

Salicylates (Includes UR N-C) ↔ renal dysfunction

Severe Potential Hazard, High plausibility. Applies to: Renal Dysfunction

Salicylate and its metabolites are eliminated almost entirely by the kidney. Therapy with salicylate drugs should be administered cautiously in patients with renal impairment, especially if it is severe. Reduced dosages may be necessary to avoid drug accumulation. Clinical monitoring of renal function is recommended during prolonged therapy, since the use of salicylate drugs has rarely been associated with renal toxicities, including elevations in serum creatinine, renal papillary necrosis, and acute tubular necrosis with renal failure. Most of the data have been derived from experience with aspirin but may apply to other salicylates as well. In patients with impaired renal function, aspirin has caused reversible and sometimes marked decreases in renal blood flow and glomerular filtration rate. Adverse renal effects have usually reversed rapidly following withdrawal of aspirin therapy.

References

  1. "Product Information. Rexolate (sodium thiosalicylate)" Hyrex Pharmaceuticals, Memphis, TN.
  2. Carmichael J, Shankel SW "Effects of nonsteroidal anti-inflammatory drugs on prostaglandins and renal function." Am J Med 78 (1985): 992-1000
  3. Riegger GA, Kahles HW, Elsner D, Kromer EP, Kochsiek K "Effects of acetylsalicylic acid on renal function in patients with chronic heart failure." Am J Med 90 (1991): 571-5
  4. "Product Information. Ecotrin (aspirin)." SmithKline Beecham, Philadelphia, PA.
  5. Kimberly RP, Plotz PH "Aspirin-induced depression of renal function." N Engl J Med 296 (1977): 418-24
  6. Maher JF "Analgesic nephropathy. Observations, interpretations, and perspective on the low incidence in America." Am J Med 76 (1984): 345-8
  7. Wen SF, Parthasarathy R, Iliopoulos O, Oberley TD "Acute renal failure following binge drinking and nonsteroidal antiinflammatory drugs." Am J Kidney Dis 20 (1992): 281-5
  8. Muther RS, Potter DM, Bennett WM "Aspirin-induced depression of glomerular filtration rate in normal humans: role of sodium balance." Ann Intern Med 94 (1981): 317-21
  9. "Product Information. Salflex (salsalate)." Carnrick Laboratories Inc, Cedar Knolls, NJ.
  10. American Medical Association, Division of Drugs and Toxicology "Drug evaluations annual 1994." Chicago, IL: American Medical Association; (1994):
  11. Whelton A "Renal effects of over-the-counter analgesics." J Clin Pharmacol 35 (1995): 454-63
View all 11 references
Major

Salicylates (Includes UR N-C) ↔ Reye's syndrome

Severe Potential Hazard, High plausibility. Applies to: Influenza, Varicella-Zoster

The use of salicylates, primarily aspirin, in children with varicella infections or influenza-like illnesses has been associated with an increased risk of Reye's syndrome. Although a causal relationship has not been established, the majority of evidence to date seems to support the association. Most authorities, including the American Academy of Pediatrics Committee on Infectious Diseases, recommend avoiding the use of salicylates in children and teenagers with known or suspected varicella or influenza and during presumed outbreaks of influenza. If antipyretic or analgesic therapy is indicated under these circumstances, acetaminophen may be an appropriate alternative. The same precautions should also be observed with related agents such as salicylamide or diflunisal because of their structural and pharmacological similarities to salicylate.

References

  1. Belay ED, Bresee JS, Holman RC, Khan AS, Shahriari A, Schonberger LB "Reye's syndrome in the United States from 1981 through 1997." N Engl J Med 340 (1999): 1377-82
  2. "Product Information. Salflex (salsalate)." Carnrick Laboratories Inc, Cedar Knolls, NJ.
  3. "Product Information. Ecotrin (aspirin)." SmithKline Beecham, Philadelphia, PA.
  4. "Product Information. Rexolate (sodium thiosalicylate)" Hyrex Pharmaceuticals, Memphis, TN.
  5. American Academy of Pediatrics. Committee on Infectious Diseases; Peter G, ed. "Red BooK: Report of the Committee on Infectious Diseases. 24th" Grove Village, IL: American Academy of Pediatrics (1997):
  6. Hasking GJ, Duggan JM "Encephalopathy from bismuth subsalicylate." Med J Aust 2 (1982): 167
  7. Epidemiology Office, Divisiion of Viral and Rickettsial Diseasses, Center for Infectious Diseases, Centers for Disease Control. "Leads from the MMWR. Reye syndrome surveillance--United States, 1987 and 1988." JAMA 261 (1989): 3520,
  8. Behrman R, Kliegman R, Arvin A, Nelson W, eds. "Nelson Textbook of Pediatrics. 15th ed." Philadelphia, PA: W.B. Saunders Company (1996):
  9. "Product Information. Pepto-Bismol (bismuth subsalicylate)." Procter and Gamble Pharmaceuticals, Cincinnati, OH.
View all 9 references
Moderate

Anticholinergics (Includes UR N-C) ↔ cardiac disease

Moderate Potential Hazard, Moderate plausibility. Applies to: Cardiovascular Disease

Anticholinergics block vagal inhibition of the SA nodal pacemaker. Therapy with anticholinergics should be administered cautiously to patients with tachycardia, congestive heart failure, or coronary artery disease. Premature ventricular depolarization, ventricular tachycardia, and fibrillation associated with anticholinergics are rare.

References

  1. Knoebel SB, McHenry PL, Phillips JF, Widlansky S "Atropine-induced cardioacceleration and myocardial blood flow in subjects with and without coronary artery disease." Am J Cardiol 33 (1974): 327-32
  2. Lazzari JO, Benchuga EG, Elizari MV, Rosenbaum MB "Ventricular fibrillation after intravenous atropine in a patient with atrioventricular block." Pacing Clin Electrophysiol 5 (1982): 196-200
  3. Schuller DE, Turkewitz D "Adverse effects of antihistamines." Postgrad Med 79 (1986): 75-86
  4. Massumi RA, Mason DT, Amsterdam EA, DeMaria A, Miller RR, Scheinman MM, Zelis R "Ventricular fibrillation and tachycardia after intravenous atropine for treatment of bradycardias." N Engl J Med 287 (1972): 336-8
  5. "Product Information. Tavist (clemastine)." Sandoz Pharmaceuticals Corporation, East Hanover, NJ.
  6. Lowenthal DT, Reidenberg MM "The heart rate response to atropine in uremic patients, obese subjects before and during fasting, and patients with other chronic illnesses." Proc Soc Exp Biol Med 139 (1972): 390-3
  7. "Product Information. Benadryl (diphenhydramine)." Parke-Davis, Morris Plains, NJ.
  8. Bradshaw EG "Dysrhythmias associated with oral surgery." Anaesthesia 31 (1976): 13-7
  9. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  10. Valentin N, Staffeldt H, Kyst A "Effect of i.v. atropine on cardiac rhythm, heart rate, blood pressure and airway secretion during isoflurane anaesthesia." Acta Anaesthesiol Scand 28 (1984): 621-4
  11. "Product Information. Antivert (meclizine)." Roerig Division, New York, NY.
  12. Horgan J "Atropine and ventricular tachyarrhythmia." JAMA 223 (1973): 693
  13. Zsigmond EK, Matsuki A, Sharafabadi C "Atropine and cardiac arrhythmia." N Engl J Med 288 (1973): 635
  14. Das G, Talmers FN, Weissler AM "New observations on the effects of atropine on the sinoatrial and atrioventricular nodes in man." Am J Cardiol 36 (1975): 281-5
  15. Lunde P "Ventricular fibrillation after intravenous atropine for treatment of sinus bradycardia." Acta Med Scand 199 (1976): 369-71
  16. Cooper MJ, Abinader EG "Atropine-induced ventricular fibrillation: case report and review of the literature." Am Heart J 97 (1979): 225-8
View all 16 references
Moderate

Anticholinergics (Includes UR N-C) ↔ tachycardia

Moderate Potential Hazard, Moderate plausibility. Applies to: Arrhythmias

Anticholinergics block vagal inhibition of the SA nodal pacemaker. Therapy with anticholinergics should be administered cautiously in patients with tachycardia, congestive heart failure, or coronary artery disease. Premature ventricular depolarization or ventricular tachycardia or fibrillation associated with anticholinergics is rare.

References

  1. "Product Information. Antivert (meclizine)." Roerig Division, New York, NY.
Moderate

Antimuscarinics (Includes UR N-C) ↔ coronary artery disease

Moderate Potential Hazard, Moderate plausibility. Applies to: Arrhythmias, Ischemic Heart Disease

Antimuscarinic agents block vagal inhibition of the SA nodal pacemaker. These agents should be administered cautiously in patients with tachycardia, congestive heart failure, or coronary artery disease. Premature ventricular depolarization or ventricular tachycardia or fibrillation associated with antimuscarinic drugs is rare.

References

  1. Lunde P "Ventricular fibrillation after intravenous atropine for treatment of sinus bradycardia." Acta Med Scand 199 (1976): 369-71
  2. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  3. Knoebel SB, McHenry PL, Phillips JF, Widlansky S "Atropine-induced cardioacceleration and myocardial blood flow in subjects with and without coronary artery disease." Am J Cardiol 33 (1974): 327-32
  4. Richman S "Adverse effect of atropine during myocardial infarction. Enchancement of ischemia following intravenously administered atropine." JAMA 228 (1974): 1414-6
View all 4 references
Moderate

Antimuscarinics (Includes UR N-C) ↔ gastric ulcer

Moderate Potential Hazard, Low plausibility. Applies to: Bleeding

Antimuscarinic agents may cause a delay in gastric emptying and possibly antral stasis in patients with gastric ulcer. Therapy with antimuscarinic agents should be administered cautiously to patients with gastric ulcer.

References

  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  2. Chernish SM, Brunelle RR, Rosenak BD, Ahmadzai S "Comparison of the effects of glucagon and atropine sulfate on gastric emptying." Am J Gastroenterol 70 (1978): 581-6
  3. Cotton BR, Smith G "Single and combined effects of atropine and metoclopramide on the lower oesophageal sphincter pressure." Br J Anaesth 53 (1981): 869-74
  4. Mevorach D "Adverse effects of atropine sulfate autoinjection." Ann Pharmacother 26 (1992): 564
View all 4 references
Moderate

Antimuscarinics (Includes UR N-C) ↔ gastroesophageal reflux

Moderate Potential Hazard, Moderate plausibility. Applies to: Gastroesophageal Reflux Disease

Antimuscarinic agents decrease gastric motility and relax the lower esophageal sphincter which promotes gastric retention and can aggravate reflux. These drugs should be administered cautiously in patients with gastroesophageal reflux or hiatal hernia associated with reflux esophagitis.

References

  1. Chernish SM, Brunelle RR, Rosenak BD, Ahmadzai S "Comparison of the effects of glucagon and atropine sulfate on gastric emptying." Am J Gastroenterol 70 (1978): 581-6
  2. Cotton BR, Smith G "Single and combined effects of atropine and metoclopramide on the lower oesophageal sphincter pressure." Br J Anaesth 53 (1981): 869-74
  3. Dow TG, Brock-Utne JG, Rubin J, Welman S, Dimopoulos GE, Moshal MG "The effect of atropine on the lower esophageal sphincter in late pregnancy." Obstet Gynecol 51 (1978): 426-30
  4. Brock-Utne JG, Rubin J, Downing JW, Dimopoulos GE, Moshal MG, Naicker M "The administration of metoclopramide with atropine. A drug interaction effect on the gastro-oesophageal sphincter in man." Anaesthesia 31 (1976): 1186-90
  5. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  6. Howells TH "The administration of metoclopramide with atropine." Anaesthesia 32 (1977): 677
View all 6 references
Moderate

Antimuscarinics (Includes UR N-C) ↔ ulcerative colitis

Moderate Potential Hazard, Moderate plausibility. Applies to: Ulcerative Colitis

Antimuscarinic agents may suppress intestinal motility and produce paralytic ileus with resultant precipitation of toxic megacolon. These drugs should be administered cautiously to patients with ulcerative colitis.

References

  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  2. Fauci AS, Braunwald E, Isselbacher KJ, Wilson JD, Martin JB, Kasper DL, Hauser SL, Longo DL, eds. "Harrison's Principles of Internal Medicine. 14th ed." New York, NY: McGraw-Hill Health Professionals Division (1998):
  3. Famewo CE "A re-evaluation of anticholergic premedication." Can Anaesth Soc J 24 (1977): 39-41
Moderate

Atropine-like agents (Includes UR N-C) ↔ liver disease

Moderate Potential Hazard, Moderate plausibility. Applies to: Liver Disease

Atropine-like agents undergo significant hepatic metabolism. Therapy with atropine-like agents should be administered cautiously to patients with liver disease.

References

  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
Moderate

Atropine-like agents (Includes UR N-C) ↔ renal failure

Moderate Potential Hazard, Moderate plausibility. Applies to: Renal Dysfunction

Atropine-like agents are primarily eliminated by the kidney. Therapy with atropine-like agents should be administered cautiously to patients with renal disease.

References

  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
Moderate

Methylene blue (Includes UR N-C) ↔ renal dysfunction

Moderate Potential Hazard, High plausibility. Applies to: Renal Dysfunction

Methylene blue is reduced in tissues to leukomethylene blue, and both are excreted by the kidney. The serum concentrations of methylene blue and leukomethylene blue may be increased in patients with impaired renal function. Therapy with methylene blue should be avoided in patients with severe renal impairment and administered cautiously in patients with mild to moderate renal impairment. Dosage adjustments may be necessary.

References

  1. "Product Information. Urised Tablets (methylene blue)." Polymedica Pharmaceuticals USA Inc, Woburn, MA.
Moderate

Salicylates (Includes UR N-C) ↔ anemia

Moderate Potential Hazard, Moderate plausibility. Applies to: Anemia

Occult, often asymptomatic GI blood loss occurs quite frequently with the use of normal dosages of aspirin and stems from the drug's local effect on the GI mucosa. During chronic therapy, this type of bleeding may occasionally produce iron deficiency anemia. Other salicylates reportedly cause little or no GI blood loss at usual dosages, but may do so at high dosages. Prolonged therapy with salicylates, particularly aspirin, should be administered cautiously in patients with or predisposed to anemia. Periodic monitoring of hematocrit is recommended. The same precautions should also be observed with the use of related agents such as salicylamide because of their structural and pharmacological similarities to salicylate.

References

  1. Naschitz JE, Yeshurun D, Odeh M, Bassan H, Rosner I, Stermer E, Levy N "Overt gastrointestinal bleeding in the course of chronic low-dose aspirin administration for secondary prevention of arterial occlusive disease." Am J Gastroenterol 85 (1990): 408-11
  2. Savon JJ, Allen ML, Dimarino AJ, Hermann GA, Krum RP "Gastrointestinal blood loss with low dose (325 mg) plain and enteric-coated aspirin administration." Am J Gastroenterol 90 (1995): 581-5
  3. "Product Information. Salflex (salsalate)." Carnrick Laboratories Inc, Cedar Knolls, NJ.
  4. Stalnikowiczdarvasi R "Gastrointestinal bleeding during low-dose aspirin administration for prevention of arterial occlusive events: a critical analysis." J Clin Gastroenterol 21 (1995): 13-6
  5. Marks RD "Aspirin use and fecal occult blood testing." Am J Med 100 (1996): 596-7
  6. "Product Information. Ecotrin (aspirin)." SmithKline Beecham, Philadelphia, PA.
  7. Prichard PJ, Kitchingman GK, Walt RP, Daneshmend TK, Hawkey CJ "Human gastric mucosal bleeding induced by low dose aspirin, but not warfarin." BMJ 298 (1989): 493-6
  8. Greenberg PD, Cello JP, Rockey DC "Asymptomatic chronic gastrointestinal blood loss in patients taking aspirin or warfarin for cardiovascular disease." Am J Med 100 (1996): 598-604
View all 8 references
Moderate

Salicylates (Includes UR N-C) ↔ coagulation

Moderate Potential Hazard, Moderate plausibility. Applies to: Bleeding, Coagulation Defect, Thrombocytopathy, Thrombocytopenia, Vitamin K Deficiency

All salicylates can interfere with the action of vitamin K and induce a dose-dependent alteration in hepatic synthesis of coagulation factors VII, IX and X. At usual recommended dosages, a slight increase in prothrombin time (PT) may occur. Therapy with salicylates, especially if given in high dosages, should be administered cautiously in patients with significant active bleeding or a hemorrhagic diathesis, including hemostatic and/or coagulation defects associated with hemophilia, vitamin K deficiency, hypoprothombinemia, thrombocytopenia, thrombocytopathy, or severe hepatic impairment. The same precaution should also be observed with the use of related agents such as salicylamide because of their structural and pharmacological similarities to salicylate.

References

  1. Fausa O "Salicylate-induced hypoprothrombinemia: a report of four cases." Acta Med Scand 188 (1970): 403-8
  2. "Product Information. Pepto-Bismol (bismuth subsalicylate)." Procter and Gamble Pharmaceuticals, Cincinnati, OH.
  3. "Product Information. Salflex (salsalate)." Carnrick Laboratories Inc, Cedar Knolls, NJ.
  4. Barrow MV, Quick DT, Cunningham RW "Salicylate hypoprothrombinemia in rheumatoid arthritis with liver disease. Report of two cases." Arch Intern Med 120 (1967): 620-4
  5. American Medical Association, Division of Drugs and Toxicology "Drug evaluations annual 1994." Chicago, IL: American Medical Association; (1994):
View all 5 references
Moderate

Salicylates (Includes UR N-C) ↔ dialysis

Moderate Potential Hazard, High plausibility. Applies to: hemodialysis

Salicylate and its metabolites are readily removed by hemodialysis and, to a lesser extent, by peritoneal dialysis. Doses should either be scheduled for administration after dialysis or supplemental doses be given after dialysis.

References

  1. "Product Information. Salflex (salsalate)." Carnrick Laboratories Inc, Cedar Knolls, NJ.
  2. "Product Information. Rexolate (sodium thiosalicylate)" Hyrex Pharmaceuticals, Memphis, TN.
  3. "Product Information. Ecotrin (aspirin)." SmithKline Beecham, Philadelphia, PA.
Moderate

Salicylates (Includes UR N-C) ↔ G-6-PD deficiency

Moderate Potential Hazard, Low plausibility. Applies to: G-6-PD Deficiency

Salicylates, particularly aspirin, may cause or aggravate hemolysis in patients with pyruvate kinase or glucose-6-phosphate dehydrogenase (G-6-PD) deficiency. However, this effect has not been clearly established. Until more data are available, therapy with salicylates should be administered cautiously in patients with G-6-PD deficiency. The same precaution should also be observed with the use of related agents such as salicylamide because of their structural and pharmacological similarities to salicylate.

References

  1. "Product Information. Ecotrin (aspirin)." SmithKline Beecham, Philadelphia, PA.
  2. "Product Information. Rexolate (sodium thiosalicylate)" Hyrex Pharmaceuticals, Memphis, TN.
  3. "Product Information. Salflex (salsalate)." Carnrick Laboratories Inc, Cedar Knolls, NJ.
Moderate

Salicylates (Includes UR N-C) ↔ hepatotoxicity

Moderate Potential Hazard, Moderate plausibility. Applies to: Liver Disease

The use of salicylates has occasionally been associated with acute, reversible hepatotoxicity, primarily manifested as elevations of serum transaminases, alkaline phosphatase and/or, rarely, bilirubin. Hepatic injury consistent with chronic active hepatitis has also been reported in a few patients, which resulted rarely in encephalopathy or death. Salicylate-induced hepatotoxicity appears to be dependent on serum salicylate concentration (> 25 mg/dL) and has occurred most frequently in patients with juvenile arthritis, active systemic lupus erythematosus, rheumatic fever, or preexisting hepatic impairment. Therapy with salicylates, particularly when given in high dosages, should be administered cautiously in these patients, and periodic monitoring of liver function is recommended. The same precautions should also be observed with the use of related agents such as salicylamide because of their structural and pharmacological similarities to salicylate. A dosage reduction may be necessary if liver function abnormalities develop and serum salicylate concentration exceeds 25 mg/dL, although serum transaminase elevations may sometimes be transient and return to pretreatment values despite continued therapy without dosage adjustment.

References

  1. Wolfe JD, Metzger AL, Goldstein RC "Aspirin hepatitis." Ann Intern Med 80 (1974): 74-6
  2. "Product Information. Rexolate (sodium thiosalicylate)" Hyrex Pharmaceuticals, Memphis, TN.
  3. "Product Information. Salflex (salsalate)." Carnrick Laboratories Inc, Cedar Knolls, NJ.
  4. American Medical Association, Division of Drugs and Toxicology "Drug evaluations annual 1994." Chicago, IL: American Medical Association; (1994):
  5. Patel DK, Hesse A, Ogunbona A, Notarianni LJ, Bennett PN "Metabolism of aspirin after therapeutic and toxic doses." Hum Exp Toxicol 9 (1990): 131-6
  6. Jorup-Ronstrom C, Beermann B, Wahlin-Boll E, Melander A, Britton S "Reduction of paracetamol and aspirin metabolism during viral hepatitis." Clin Pharmacokinet 11 (1986): 250-6
  7. Seaman WE, Ishak KG, Plotz PH "Aspirin-induced hepatotoxicity in patients with systemic lupus erythematosus." Ann Intern Med 80 (1974): 1-8
  8. Sbarbaro JA, Bennett RM "Aspirin hepatotoxicity and disseminated intravascular coagulation." Ann Intern Med 86 (1977): 183-5
View all 8 references
Moderate

Anticholinergics (Includes UR N-C) ↔ hypertension

Minor Potential Hazard, Low plausibility. Applies to: Hypertension

Cardiovascular effects of anticholinergics may exacerbate hypertension. Therapy with anticholinergic agents should be administered cautiously in patients with hypertension.

References

  1. "Product Information. Marezine (cyclizine)." Glaxo Wellcome, Research Triangle Park, NC.
  2. "Product Information. Cogentin (benztropine)." Merck & Co, Inc, West Point, PA.
  3. "Product Information. Benadryl (diphenhydramine)." Parke-Davis, Morris Plains, NJ.
  4. "Product Information. Artane (trihexyphenidyl)." Lederle Laboratories, Wayne, NJ.
  5. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  6. Valentin N, Staffeldt H, Kyst A "Effect of i.v. atropine on cardiac rhythm, heart rate, blood pressure and airway secretion during isoflurane anaesthesia." Acta Anaesthesiol Scand 28 (1984): 621-4
  7. "Product Information. Antivert (meclizine)." Roerig Division, New York, NY.
View all 7 references
Moderate

Anticholinergics (Includes UR N-C) ↔ hyperthyroidism

Minor Potential Hazard, Low plausibility. Applies to: Hyperthyroidism

In general, agents with anticholinergic activity may exacerbate hyperthyroidism. Therapy with anticholinergics should be administered cautiously in patients with hyperthyroidism. Thyroid levels should be monitored if usage is prolonged.

References

  1. "Product Information. Dimetane (brompheniramine)." Wyeth-Ayerst Laboratories, Philadelphia, PA.
  2. "Product Information. Poly-Histine-D (pyrilamine)." Bock Pharmaceutical Company, St. Louis, MO.
  3. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  4. "Product Information. Optimine (azatadine)." Schering Laboratories, Kenilworth, NJ.
  5. "Product Information. Antivert (meclizine)." Roerig Division, New York, NY.
  6. "Product Information. Chlortrimeton (chlorpheniramine)." Schering-Plough, Liberty Corner, NJ.
  7. "Product Information. Tavist (clemastine)." Sandoz Pharmaceuticals Corporation, East Hanover, NJ.
  8. "Product Information. Periactin (cyproheptadine)." Merck & Co, Inc, West Point, PA.
View all 8 references
Moderate

Antimuscarinics (Includes UR N-C) ↔ diarrhea

Minor Potential Hazard, Moderate plausibility. Applies to: Diarrhea

Diarrhea may be a symptom of incomplete intestinal obstruction, especially in patients with ileostomy or colostomy. Antimuscarinic agents may further aggravate the diarrhea. Therefore, these drugs should be administered cautiously in patients with diarrhea.

References

  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  2. "Lomotil for diarrhea in children." Med Lett Drugs Ther 17 (1975): 104
Moderate

Atropine-like agents (Includes UR N-C) ↔ fever

Minor Potential Hazard, Low plausibility. Applies to: Fever

Atropine-like agents may increase the risk of hyperthermia in patients with fever by producing anhidrosis. Therapy with atropine-like agents should be administered cautiously in febrile patients.

References

  1. Sarnquist F, Larson CP Jr "Drug-induced heat stroke." Anesthesiology 39 (1973): 348-50
  2. Lee BS "Possibility of hyperpyrexia with antipsychotic and anticholinergic drugs." J Clin Psychiatry 47 (1986): 571
  3. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  4. "Product Information. Cogentin (benztropine)." Merck & Co, Inc, West Point, PA.
  5. Stadnyk AN, Glezos JD "Drug-induced heat stroke." Can Med Assoc J 128 (1983): 957-9
  6. Forester D "Fatal drug-induced heat stroke." JACEP 7 (1978): 243-4
View all 6 references

UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate) drug interactions

There are 1312 drug interactions with UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate)

UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate) alcohol/food interactions

There are 3 alcohol/food interactions with UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate)

More about UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate)

Related treatment guides

Drug Interaction Classification

The classifications below are a general guideline only. It is difficult to determine the relevance of a particular drug interaction to any individual given the large number of variables.
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 information available.

Do not stop taking any medications without consulting your healthcare provider.

Further information

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

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