Drug Interactions between Helidac and UR N-C
This report displays the potential drug interactions for the following 2 drugs:
- Helidac (bismuth subsalicylate/metronidazole/tetracycline)
- UR N-C (hyoscyamine/methenamine/methylene blue/phenyl salicylate/sodium biphosphate)
Interactions between your drugs
sodium biphosphate phenyl salicylate
Applies to: UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate) and UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate)
The following interaction applies only to products containing sodium biphosphate that are used for bowel cleansing. It does not apply to products containing sodium biphosphate that are used for other, non-laxative related purposes.
Bowel cleansing with sodium biphosphate can cause kidney failure, in some cases up to several months after the procedure. Although it rarely occurs, the risk is increased in individuals receiving treatment with phenyl salicylate, especially if they are also elderly or frail. You may need a dose adjustment or special tests to safely use both medications. Combining these medications may also increase the risk of dehydration and electrolyte abnormalities. In severe cases, dehydration and electrolyte abnormalities can lead to irregular heart rhythm, seizures, and kidney problems. You should use sodium biphosphate exactly as prescribed by your doctor, and drink plenty of clear fluids before, during, and after the cleansing process to keep yourself hydrated. Your doctor may also recommend an electrolyte rehydration solution that you can use. Talk to your doctor if you have any concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
tetracycline bismuth subsalicylate
Applies to: Helidac (bismuth subsalicylate / metronidazole / tetracycline) and Helidac (bismuth subsalicylate / metronidazole / tetracycline)
Using bismuth subsalicylate together with tetracycline may decrease the effects of tetracycline. Administration of tetracycline and bismuth subsalicylate should be separated by two to three hours. If your doctor does prescribe these medications together, you may need a dose adjustment or special test to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
bismuth subsalicylate phenyl salicylate
Applies to: Helidac (bismuth subsalicylate / metronidazole / tetracycline) and UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate)
Using bismuth subsalicylate together with phenyl salicylate is generally not recommended. Combining these medications may increase the risk of side effects in the gastrointestinal tract such as inflammation, pain, bleeding, and ulceration. Bruising and other bleeding complications may also occur. You should take these medications with food to lessen gastrointestinal side effects. Talk to your doctor if you have any questions or concerns. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications. You should seek immediate medical attention if you experience any unusual bleeding or bruising, or have other signs and symptoms of bleeding such as dizziness; lightheadedness; red or black, tarry stools; coughing up or vomiting fresh or dried blood that looks like coffee grounds; severe headache; and weakness. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Drug and food interactions
metroNIDAZOLE food
Applies to: Helidac (bismuth subsalicylate / metronidazole / tetracycline)
Consumption of alcoholic beverages or products containing alcohol or propylene glycol during treatment with metroNIDAZOLE is not recommended. Doing so may occasionally trigger a reaction in some patients similar to the disulfiram reaction, which includes unpleasant effects such as flushing, throbbing in head and neck, throbbing headache, difficulty breathing, nausea, vomiting, sweating, thirst, chest pain, rapid heartbeat, palpitation, low blood pressure, dizziness, lightheadedness, blurred vision, and confusion. Rarely, more severe reactions may include abnormal heart rhythm, heart attack, heart failure, unconsciousness, convulsions, and even death. Patients treated with metroNIDAZOLE should continue to avoid using any products containing alcohol or propylene glycol for at least 3 days until after completion of therapy. Talk to your doctor or pharmacist if you have questions on how to take this or other medications you are prescribed. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
tetracycline food
Applies to: Helidac (bismuth subsalicylate / metronidazole / tetracycline)
Do not take iron supplements, multivitamins, calcium supplements, antacids, or laxatives within 2 hours before or after taking tetracycline. These products can make tetracycline less effective in treating your infection. Do not take tetracycline with milk or other dairy products, unless your doctor has told you to. Dairy products can make it harder for your body to absorb the medication.
sodium biphosphate food
Applies to: UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate)
Oral medications may not be properly absorbed when they are taken within one hour before starting sodium biphosphate for bowel cleansing. Talk to your doctor or pharmacist to see if you should adjust the dosing schedule of your other medications before you begin bowel cleansing treatment. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
hyoscyamine food
Applies to: UR N-C (hyoscyamine / methenamine / methylene blue / phenyl salicylate / sodium biphosphate)
Ask your doctor before using hyoscyamine together with ethanol (alcohol). Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking hyoscyamine. You should be warned not to exceed recommended dosages and to avoid activities requiring mental alertness. If your doctor prescribes these medications together, you may need a dose adjustment to safely take this combination. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
tetracycline food
Applies to: Helidac (bismuth subsalicylate / metronidazole / tetracycline)
Iron can bind to tetracycline in the gastrointestinal tract, which may prevent their absorption into the bloodstream and possibly reduce their effectiveness. To avoid or minimize the interaction, iron-containing medications and tetracycline should preferably be taken at least three to four hours apart in most cases. Talk to your doctor if you have any questions or concerns, or if you have trouble separating the dosing times. Your doctor may be able to prescribe alternatives that do not interact. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
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
Drug Interaction Classification
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| 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. | |
| 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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