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Doctor insights on: Penicillin Nausea

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What happens if you can't have a penicillin shot for syphilis?

What happens if you can't have a penicillin shot for syphilis?

Doxycycline: Doxycycline for 2-4 weeks is recommended if penicillin cannot be given, or sometimes ceftriaxone. However, penicillin is by far the best drug. If you had a severe penicillin allergy in the past, then probably penicillin should be avoided. Otherwise, it still might be the best choice for you. Discuss it with your doctor or, even better, an infectious diseases or STD specialist. ...Read more

Dr. Stephen Noga
1,712 doctors shared insights

Nausea (Definition)

Nausea = abdominal upset ...Read more


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I'm taking Penicillin and I have nausea. I guess this is common, when you take Penicillin?

I'm taking Penicillin and I have nausea. I guess this is common, when you take Penicillin?

GI side effects PCN: Gastrointestinal issues such as nausea, vomiting, abdominal pain or cramps, and diarrhea are some of the well known side effects from penicillin. Taking the medication with food can help reduce or eliminate them. ...Read more

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I'm taking 50g sertraline with 250mg of penicillin, is this why i'm having spaced out and nausea and anxious feelings?

I'm taking 50g sertraline with 250mg of penicillin, is this why i'm having spaced out and nausea and anxious feelings?

Maybe: There's usually no interaction between zoloft (sertraline) and penicillin. Unless the zoloft (sertraline) is new for you, i would not expect it to related to your complaints. Certainly the penicillin or the infection you're being treated for could be related to your complaints. Please contact the prescribing physician for clarification. ...Read more

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Can 2000mg of penicillin a day cause very bad tummy ache and nausea ?

Can 2000mg of penicillin a day cause very bad tummy ache and nausea ?

Yes: GI upset is not uncommon with antibiotics. You could consider taking probiotics products like kefir - which is inexpensive and readily available in most markets. You can also consider more expensive products like Bio-K which you can find in certain nutrition stores. Try to take the refrigerated formulatoin since they tend to contain higher live bacteria count. Twice a day with meals should do. ...Read more

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I had strep throat last week and was on penicillin for 10 days. now I feel fatigue, headache, feverish, a little sore throat & nausea. ?

I had strep throat last week and was on penicillin for 10 days. now I feel fatigue, headache, feverish, a little sore throat & nausea. ?

Sounds new: Your symptoms seem to be related to a new illness. You should see your doc because although it is likely a new onset viral syndrome, you may be experiencing a complication of the bacterial illness for which you were just treated. A good diagnosis will require thorough history with many questions and perhaps some testing. Don't delay too long, especially if you're progressively worsening! ...Read more

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Can penicillin v cause diarrhea and gastrointestinal pain? I take penicillin v for my tonsillitis but i feel sick in my belly. Thanks!

Can penicillin v cause diarrhea and gastrointestinal pain? I take penicillin v for my tonsillitis but i feel sick in my belly. Thanks!

Possibly: You may be having an adverse reaction to the pen v or you may be taking pen vk which contains potassium to which some are very sensitive. Or you may be experiencing changes in intestinal flora secondary to antibiotics. Since you are not likely to be taking this for more than 10 days, if it continues see your doctor for further evaluation. ...Read more

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Day 2 of 10mL penicillin for mild tonsillitis which may have been viral, and I feel sick to my stomach. Persistent diarrhea, vomiting. Can I stop?

Day 2 of 10mL penicillin for mild tonsillitis which may have been viral, and I feel sick to my stomach. Persistent diarrhea, vomiting. Can I stop?

You should consult: with the doctor who prescribed the penicillin. But if you are vomiting, the drug is probably not getting into your system anyway. You need to be treated for the diarrhea and vomiting more urgently rather than mild tonsillitis. ...Read more