Q. As I took the wrong dosage for H. pylori infection, bacteria are now resistant. Please help.

Answered by
Dr. Ajeet Kumar
and medically reviewed by Dr. Sneha Kannan
This is a premium question & answer published on Sep 07, 2020 and last reviewed on: May 08, 2021

Hello doctor,

I have hair loss, which is not growing, fainting, low energy, and stomachache. I have been diagnosed with H.pylori and gastritis. My doctor gave me capsule Pylera three tablets per meal and Omeprazole one tablet. After I finished the treatment, I discovered that I took the wrong dosage of one pill per meal. Now the bacteria is resistant to capsule Pylera. What antibiotics should I take as second-line treatment?

Thank you.



Welcome to

Well, you already have taken a very effective dose of capsule Pylera (Bismuth subcitrate potassium, Metronidazole, and Tetracycline hydrochloride). Every bug in another human responds differently. I suggest you test for the H.pylori stool antigen, confirm whether it is still present, and then consider starting a second course of treatment. How many days has it been since you finished the course?

If you just completed the dose today or yesterday, I suggest you complete the course of Pylera with omeprazole for another 10 days and this total time dose as prescribed earlier. The bug probably has responded to the earlier doses as well. If you have finished the course well before a week or two weeks, then wait to complete at least four weeks, and then test for H pylori stool antigen. If it is present after that, we can consider further treatment.

Otherwise, if you want to take another course without testing it, then I suggest you with:

  • Capsule Amoxicillin 1 gm twice daily for 10 days.
  • Tablet Clarithromycin 500 mg twice daily for 10 days.
  • Capsule Omeprazole 40 mg once daily for 10 days.

Was this answer helpful?


Same symptoms doesn’t mean you have the same problem. Consult a doctor now!

Related Questions:
I have stomach pain below the breast on the left side. Please help.

.. suffering from constipation. Because of it, you have stomach pain below the breast on the left side with difficulty in depositing waste. When there is constipation, the waste does not get clear entirely from the bowel. This results in bowel enlarg...   Read full

Are H.pylori infection and stomach cancer interrelated?

.. is a bacterial infection, which occur from unhygienic food and typically occur only in the stomach. Because of the infection, the stomach wall inflamed (redness and swelling) and due to this, symptoms of gastritis such as nausea, upper abdominal ...   Read full

Getting stomach pain and cramps during masturbation. Is that normal?

.. understand your concern for your symptoms. The cramps, and pain during and after masturbation can be due to, 1. Renal calculi, do you have any abdominal pain? 2. Urinary tract infection may be a reason. Do you have burning or increased urination...   Read full


Also Read Answers From:

ideaComprehensive Medical Second Opinion.Submit your Case

Also Read

Relation Between Enamel Hypoplasia and Dental Caries
Enamel hypoplasia is due to incomplete or defective formation in the organic matrix, which forms the first layer of the ...  Read more»
Methods to Increase Breast Milk Production
Several measures can help mothers in increasing their breast milk production. Find out the correct way to breastfeed thr...  Read more»
Ingrown Hair: How Can You Prevent and Treat It
An ingrown hair is a hair strand that grows back into the skin after a clean shave or waxing. It appears as a raised dar...  Read more»

Ask your health query to a doctor online?

Ask a Medical Gastroenterologist Now

* guaranteed answer within 4 hours.

Disclaimer: No content published on this website is intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek advice from your physician or other qualified healthcare providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website. Read our Editorial Process to know how we create content for health articles and queries.