Sinus Infection

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ask: How long should antibiotic-related intestinal side effects last once the medicine is done?

By Nancy Drew Fan
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Okay, I'll try to make this post as "non-TMI" as possible. I had my first-ever sinus infection a few weeks ago, and the PA at my doctor's office prescribed Omnicef for me for 10 days. It did a great job at knocking out the cooties and making me feel better, but it's also wreaked havoc on my intestinal system. About halfway into the 10 days I started getting diarrhea, sometimes as much as 8 times a day. Fun stuff, huh?

I figured the trots would improve when the Omnicef was done, but they kept going. About 5 days after finishing the Omnicef I asked the pharmacist how long I could expect the diarrhea side effects and she so obviously guessed when she said "oh I'm not sure, but I'd say about a week or so, I would think" Don't you love it when they make stuff up on the spot?

So now it's been 9 days since I've had my last Omnicef pill and I'm still having mild symptoms. Not "oh man, get me to the bathroom NOW" symptoms, but things just aren't 100% yet. I've bought some strong acidophilus and am taking it 3 times a day and am trying to eat more good-quality plain yogurt. TMI alert--there is just a lot of mucousy reddish brown stuff coming out and it's creeping me out. I read that Omnicef can cause reddish poos due to the way it interacts with iron in your diet, but would this still be the cause a week-plus after finishing the dose?

Does anyone know how long antibiotics essentially stay in your system, and how long I have to put up with this? It's getting better overall but it seems like this might be a medicine I want to avoid in the future. At what point do I call the doctor for a follow-up? thanks to everyone and I hope I didn't gross anyone out too badly.

Add a Comment51 Comments

EmpowHER Guest

Took amoxillin capsule when I had some itching.pain after that dose . I had some side effect like my bladder can't hold urine , I felt so restless and uncomfortable ever since . So stress because my mind is really on it.

March 5, 2015 - 8:18pm
EmpowHER Guest

i was on doxycycline (200mg) pr day for almost three years for Rocacea. This past year they had me down to one 100mg pill each day. I recently stopped because I started having a lot of abdominal symptoms and just feeling yucky for over a month. I've been off of them for a week now and feel better, but still yucky. i'm having a colonoscopy done this week to see if there is any colitis. I've been taking probiotics to try and get healthy, but it's slow going. When I start feeling better, I end up eating stuff that really works my intestines, then it's back to feeling yucky. I still feel better than with the antibiotics. How long does it take to heal up or will I need other medication to get things back to normal?

February 9, 2015 - 7:26am
EmpowHER Guest

I was recently on the antibiotic cleocin (the name brand form of Clindamycin) I had to stop taking it do to extreme pain in my abdomen right where my sternum ends. It hurts when I breath and swallow food. I was hoping someone could let me know how long it should take for this symptom to pass and (if possible) make it go away faster.

January 27, 2015 - 8:07pm
EmpowHER Guest

That happens to me every time I take any antibiotic plus just overall deathly sickness for the entire time. Last time, in regards to the diarrhea, I dehydrated myself. And to have 3 liters of fluid. I was placed on antibiotics last week, and today is my last miserable day, I hope. The nurse in the ER told me to buy pill or capsule probiotics and take one before every dose, which I have done. No diarrhea this time. My GI doctor said not to eat diary products because the intensifies the diarrhea. I am so intolerant of antibiotics I am just miserable every day.

October 6, 2014 - 11:14am
EmpowHER Guest

I took Ciprodex 500 for 2.5 days (5 tabs in total) and had such a severe reaction I actually went to my local emergency. I was feeling terribly nauseated, noticed my heart rate slowing down (which was really scary), no energy and abdominal discomfort. I've never felt like that on antibiotics. The hospital ran general blood tests, an EKG and an x-ray, all which came up negative (which is good but begs the question if they were actually the right tests at all to determine if I experienced some form of reaction to the drug). I haven't taken the drug now for 5 days and am feeling pretty awful. Nauseated, dizzy, weird feeling in my throat and abdominal discomfort not to mention no energy to do anything but lie in bed. This drug is hazardous. Does anyone know how long it would take for the side effects to subside? Any other recommendations to speed the healing process?? Many thanks.

September 28, 2014 - 9:19am
EmpowHER Guest
Anonymous (reply to Anonymous)

Hey I tooj the same thing. Three days in I had to stop. My neck hurts my chest Is tight.and my stomach feels weird

December 2, 2014 - 10:03pm
Addy99 (reply to Anonymous)

I stopped taking this antibiotic 6 days ago and still feel very nauseous, and fatigued. How long did it take till your side effect cleared???
I am tired of being sick.


October 28, 2014 - 3:51pm
member001 (reply to Addy99)

How long did the nausea last?
I have same problem.

December 11, 2014 - 5:02am
EmpowHER Guest
Anonymous (reply to Addy99)

Mine didn't clear up for weeks !! I still had very liquidy , odd stools and feelings of nausea for what seemed like a long time, that's why I ended up on here !! Hope you soon feel better !

October 29, 2014 - 6:47am
EmpowHER Guest

You could have antibiotic induced colitis. If so it will not clear up until you get a different medication to treat that. If you are having to use the bathroom many times per day you need to see a doctor.

July 26, 2014 - 6:13am
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