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A member asked:

How long does macrobid stay in your system after taking the last dosage?

A doctor has provided 1 answer
Dr. Nayana Trivedi answered

Specializes in Internal Medicine

24hours: Half life is 12 hours. That means the half of the total dose taken will be gone after 12 hours and then another 12 hours 50% from the other half will be gone and so forth.

Answered 6/21/2021

3.2k views

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Related Questions

A member asked:

44-yr old female. Tachycardia since 19. Several docs over yrs. Ekg, holter say normal. Episodes used to last a few min, now up to 10 hrs. Taking Zoloft (sertraline) and macrobid. B12 shots help. What now?

A doctor has provided 1 answer

A member asked:

Hi, I am taking my last capsule of Macrobid macrocrystals-monohydrate (100 mg) and my UTI symptoms persist (frequent urination, difficulty emptying bladder). Should I give it a couple more days before going to an urgent care?

3 doctors weighed in across 2 answers

A member asked:

My doctor brought up possibly taking single dose cipro (ciprofloxacin) or Macrobid after intercourse to prevent uti's-will this interfere with my tri-previfem?

A doctor has provided 1 answer

A member asked:

I have bladder pain and burning. I first felt it last week and it lasted a day. It's back today and I started macrobid. I have chills Now. Is that Ok?

A doctor has provided 1 answer

A member asked:

Day 4 of Macrobid , bladder infection, symptoms are worse since last night. Culture done, said Im on the right rx. Do I return to the dr or wait?

4 doctors weighed in across 2 answers

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