Bismuth subsalicylate, metronidazole, and tetracycline

Generic name: Bismuth Subsalicylate, Metronidazole, And Tetracycline
Brand names: Helidac
Dosage form: oral kit (262.4 mg-250 mg-500 mg)
Drug class: H. pylori eradication agents

Usage of Bismuth subsalicylate, metronidazole, and tetracycline

Bismuth subsalicylate potassium, metronidazole, and tetracycline (Helidac) is a combination medicine used to treat peptic ulcer (duodenal ulcer) with Helicobacter pylori infection. Helidac is usually given together with another medicine to reduce stomach acid.

Helidac may also be used for purposes not listed in this medication guide.

Bismuth subsalicylate, metronidazole, and tetracycline side effects

Stop taking Helidac and get emergency medical help if you have signs of an allergic reaction (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling).

Bismuth subsalicylate, metronidazole, and tetracycline may cause serious side effects. Call your doctor at once if you have:

severe stomach pain, diarrhea that is watery or bloody (even if it occurs months after your last dose);

dizziness, problems with speech or coordination;

fever, neck stiffness, increased sensitivity to light, nausea, vomiting.

a seizure;

vaginal itching or discharge;

numbness or tingling in your arms and legs; or

increased pressure inside the skull--severe headaches, ringing in your ears, dizziness, nausea, vision problems, pain behind your eyes.

Helidac may cause your tongue to become darker in color. It may also cause your stools to appear black in color. These are harmless and temporary side effects.

Common side effects of bismuth subsalicylate, metronidazole, and tetracycline may include:

stomach pain, nausea, diarrhea;

dark-colored stools;

mouth sores; or

swollen tongue, black or "hairy" tongue.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Before taking Bismuth subsalicylate, metronidazole, and tetracycline

You should not use Helidac if you are allergic to bismuth subsalicylate potassium, metronidazole, or tetracycline, or if:

you have severe kidney disease;

you drink alcohol daily;

you regularly consume foods or medicines that contain propylene glycol;

you took disulfiram (Antabuse) within the past 14 days;

you also use methoxyflurane; or

you are allergic to aspirin.

Tell your doctor if you have ever had:

kidney or liver disease;

a nervous system disorder such as Alzheimer's disease, multiple sclerosis, or Parkinson's disease;

a head injury or brain tumor; or

a seizure disorder.

Metronidazole has caused cancer in animal studies. It is not known whether this would occur in humans taking Helidac. Ask your doctor about the risk.

Do not use Helidac if you are pregnant. Tetracycline can cause permanent tooth discoloration and affect growth in the baby. Tell your doctor if you become pregnant.

Helidac can make birth control pills less effective. Ask your doctor about other birth control options such as an injection, implant, skin patch, vaginal ring, condom, diaphragm, cervical cap, or contraceptive sponge.

You should not breastfeed within 24 hours after using Helidac. If you use a breast pump during this time, throw out any milk you collect. Do not feed it to your baby.

Not approved for use by anyone younger than 18 years old.

Relate drugs

How to use Bismuth subsalicylate, metronidazole, and tetracycline

Usual Adult Dose for Helicobacter pylori Infection:

524.8 mg bismuth subsalicylate (chewable), metronidazole 250 mg, and tetracycline 500 mg orally four times daily for 14 days with meals and at bedtime. This therapy should be accompanied by a histamine-2 antagonist approved for the treatment of acute duodenal ulcer. The metronidazole tablet and the tetracycline capsule should be swallowed whole with a full glass of water (8 ounces).

Usual Pediatric Dose for Helicobacter pylori Infection:

8 years and older: Bismuth subsalicylate 524.8 to 525 mg-metronidazole 250 mg-tetracycline 500 mg orally 4 times a day (after meals and at bedtime)-Duration of therapy: 14 daysComment: An H(2) receptor antagonist approved to treat acute duodenal ulcer should be given with this drug.Use: Eradication of Helicobacter pylori infection in patients with active or a history of duodenal ulcer

Warnings

Do not drink alcohol or consume foods or medicines that contain propylene glycol while you are taking Helidac and for at least 3 days after you stop taking it.

Metronidazole has caused cancer in animal studies. It is not known whether this would occur in humans taking Helidac.

What other drugs will affect Bismuth subsalicylate, metronidazole, and tetracycline

Tell your doctor about all your current medicines. Many drugs can affect Helidac, especially:

aspirin;

cimetidine;

probenecid;

an antidepressant;

asthma medication;

Busulfan or other cancer medicine;

diabetes medication;

heart or blood pressure medication;

lithium or other antipsychotic medicine;

medicine to treat malaria, HIV, or other infection;

a blood thinner--warfarin, Coumadin, Jantoven; or

seizure medicine--phenytoin or phenobarbital.

This list is not complete and many other drugs may affect Helidac. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

Disclaimer

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