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

I was taking Tetracycline 500 and that gave me fever with head aches, nausea, little bit of cramps on the stomach and bitter/wierd taste in my mouth. Since it was given as a preventative drug for infection I stopped it with 6 (out of 28) were left. I did it cause i was getting fever and headaches and when i read about the side effect they fell in to the harmful category. Anyway that was Saturday night. Its Tuesday night now and i am still feeling nausea and some of the symptoms. Slightly feverish today. I am wonderring if i should call my dr or wait it out since its not yet been a week.
Please help

Doesn't sound normal to me. I've been on antibiotics for three weeks and haven't had any intestinal issues.

However, I was prescribed an anti-fungal as a preventive measure (Nystatin). I really think THAT is key and doctors sorely miss the boat there. And I've been taking probiotics and eating yogurt as well.

Antibiotics aren't the bad guys. The major problem is the doctors, who don't warn the patients about yeast overgrowth and depletion of the good intestinal bacteria. This could be a non-issue if the doctors were pro-active and informed their patients, prescribed anti-fungals, etc..

Sounds life C. Diff. Go to the doctor right away and get tested. Antibiotics can cause C. Diff.

I'm going thru same thing this week. Major stomach problems and diarrhea. Last time I took antibiotic was Monday morning. Don't know if I should go see a doctor or wait it out. I've tried Activa yogurt, probiotic supplements, have gone thru a small bottle of pepto, almost a small bottle of kaopetic. Can't seem to eat anything that doesn't turn to diarrhea. Just like Nancy Drew fan, it was much worse before, going at least 8 times a day, now not as much, but still loose and constant stomach pains. I just feel crummy probably because I don't think I'm keeping anything in. I'm drinking plenty of water. I just googled how long it should take to get antibiotic out of system and found this sight. I read other blogs and it seems people have varying ideas. I'm just wondering if I should go see the Dr. tomorrow before the weekend, or is it normal to feel this yucky?

I second Coach Virginia's advice. The more you take antibiotics, the more you can disturb intestinal flora that keep everything in check.

Nancy, I think your posting is interesting and validates what I believe at a professional level, what are the potential effects of drugs including antibiotics. Although antibiotics are a necessary evil when fighting bacterial infection, they come along with a big price. It appears that your whole system has been impacted and your intestinal flora has been disturbed to an extent. I would wait another week to see if your body's natural ability to heal will kick in.

As you know, most antibiotics are given to combat the infecting bacteria, unfortunately they also destroy the "good bacteria" we have in our instestinal system. You may be taking too much of the probiotics formula. Have you tried just eating yogurt? Choose the product that contains "live organisms" and without sugar added. In other words, pick plain yogurt, if you do not like the taste, you can add a little honey or sprinkle stevia, but stay away from sugars during this time of healing because yeast and candida bacterium love sweets and your gut will continue to be off balance.

Stay away from foods that cause irritation such as hot spicy foods, alcohol, greasy foods. Be careful with fruits that cause lose stools. Bananas are great to bring balance to your gut, try eating them greener to minimize the natural sugar bananas contain.