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Doctor insights on: Amoxicillin Stomach Upset

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Amoxicillin (Definition)

Amoxicillin is in the penicillin class of antibiotics. All penicillins are distinguished by the presence of a beta-lactam ring, and are known to kill bacteria by inhibiting synthesis (production) ...Read more


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I took my dose of 3 amoxicillin all at the same time, and have not eaten anything all day. Am I just going to experience stomach upset?

I took my dose of 3 amoxicillin all at the same time, and have not eaten anything all day.  Am I just going to experience stomach upset?

If you're lucky you: won't even have an upset stomach. Amoxicillin is fairly easy on the stomach. Just understand that "three times a day" isn't the same as "3 once a day". Take your next dose 8-12 hours after this dose then continue taking one three times a day after that, separating those doses as far as you can during your waking hours. Dr. Anne. ...Read more

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Is mild stomach upset, mild nausea, and lack of appetite normal on amoxicillin?

Is mild stomach upset, mild nausea, and lack of appetite normal on amoxicillin?

Yes: yes it is very normal while you are taking that medication. Just hang in there and no worries. Connect with my Virtual Practice on Healthtap for any dental questions with my special keycode: DFWMCQ! Securely video or text chat by virtual appointment. http://htap.us/28qexs ...Read more

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Is upset stomach usually associated with amoxicillin? I've taken two 500 mg pills with little to no food. Can you take it with or without food?

Is upset stomach usually associated with amoxicillin? I've taken two 500 mg pills with little to no food. Can you take it with or without food?

Usually no problem: Amoxicillin rarely upsets the stomach, but if you think it's happening to you, take it with some food. It is equally well absorbed and equally effective taken with or without food. ...Read more

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I am taking amoxicillin and it is causing my stomach to be upset. What can I do or take to eliminate the discomfort?

I am taking amoxicillin and it is causing my stomach to be upset. What can I do or take to eliminate the discomfort?

For your stomach: Be sure to drink at least one cup of fluid - slowly over 3-5 minutes - with your medicine. Also, eat 2 or 3 saltine crackers 2-3 minutes before and again about 3-4 minutes after taking your medicine. Don't combine other meds with it. Is it possible you have a mild gastritis or reflux esophagitis. ...Read more

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Been on amoxicillin for 4 days for possible strep, causing a huge IBS fare up & extreme upset stomach, should I stop taking?

Yes: you are having an "ADVERSE REACTION" (GI Porblem) from the amoxicillin a very common one for that drug! Is there a reason why you cannot take Penicillin??? My suggestion is to stop the Amox and CALL the PRESCRIBING Health Professional now!!! Another antibiotic will be suggested! Hope this helsp! DR Z ...Read more

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I have been taking amoxicillin for about 6 days and now my stomach feels upset and my stool is mustard yellow?drank a lot of green tea and honey

I have been taking amoxicillin for about 6 days and now my stomach feels upset and my stool is  mustard yellow?drank a lot of green tea and honey

You may stop Atb: Antibiotics can cause stomach upset after a few days of use. But they have done their job in 5-6 days. So if your problem for which you took amoxicillin has resolved, you should stop taking the antibiotics right now. Take some imodium(over the counter) if you need more quick relief from stomach upset. ...Read more

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Amoxil (amoxicillin) on a full stomach, is that okay?

Amoxil (amoxicillin) on a full stomach, is that okay?

Amoxil (amoxicillin) and Food: Amoxicillin can be taken with or without food. It shouldn't matter. Certainly if you get an upset stomach if you take it on an empty stomach, then take it with food. ...Read more

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My son has been on amoxicillin and now has stomach cramps, horrendous wind both ends. When will this go away he's in agony ?

My son has been on amoxicillin and now has stomach cramps, horrendous wind both ends. When will this go away he's in agony ?

Why amoxil (amoxicillin): it may be related to amoxil (amoxicillin) killing off good bacteria in his colon and overgrowth of dysbiotic bacteria. Speak to the prescribing physician about what to do. ...Read more

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Upper Abdomen (Definition)

Draw a transverse line through the umbilicus and the upper abdomen includes every part of the belly above this line and below the ...Read more


Dr. Philip Miller
1,125 doctors shared insights

Amoxil (Definition)

Amoxil is a third generation penicillin which is a kind of penincillin type drug (anti-bacterial ...Read more