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Doctor insights on: Unasyn Third Generation Penicillin

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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. Suzanne Galli
3 doctors shared insights

Ampicillin And Sulbactam (Definition)

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


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When my son was little, he took some antibiotic called unasyn (ampicillin and sulbactam). Is that a penicillin?

When my son was little, he took some antibiotic called unasyn (ampicillin and sulbactam).  Is that a penicillin?

Unasyn (ampicillin and sulbactam): Unasyn (ampicillin and sulbactam) is an antibiotic that combines a type of penicillin (called ampicillin) with sulbactam. This drug was developed to deal with bacteria that destroy part of the penicillin chemical structure, thus making these bacteria immune to the antibiotic. The sulbactam inactivates the bacterial resistance, allowing the penicillin portion to be effective. ...Read more

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Would the older or newer generation of cephalosporins antibiotics be more likely to cause anaphylaxis in patients severely allergic to penicillin?

Would the older or newer generation of cephalosporins antibiotics be more likely to cause anaphylaxis in patients severely allergic to penicillin?

See below: Persons with type 1 immediate hypersensity to penicillin antibiotics should generally avoid taking cephalosporin antibiotics because of the low but real risk of cross allergenicity. Safe alternative antibiotics include vancomycin, septra, (sulfamethoxazole and trimethoprim) macrolides, tetracyclines, aztreonam, clindamycin, zyvox, quinolones etc. ...Read more

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I may need cephalosporin therapy with a suspected penicillin allergy. How does it work? Do I take a 3rd generation by mouth and sit in an ER waiting room with a buddy and an epipen (epinephrine)?

I may need cephalosporin therapy with a suspected penicillin allergy.  How does it work?  Do I take a 3rd generation by mouth and sit in an ER waiting room with a buddy and an epipen (epinephrine)?

Penicillin allergy: Among all patients reporting penicillin allergy, 85 to 90% will tolerate a penicillin, either because they were never allergic or because they had an earlier allergy that subsequently resolved. Among penicillin skin test-positive patients, approximately 2% will react to a cephalosporin. ...Read more

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When does someone get penicillin?

When does someone get penicillin?

Penicillin: is used to treat bacterial infections when the organism is susceptible to it. ...Read more

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Does taking penicillin affect my patch?

Type of patch: What type of patch are you using . Many medicines are administered via patch. ...Read more

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Is it possible to overdose on regular penicillin?

Is it possible to overdose on regular penicillin?

Unlikely: Depends upon what you call overdose. If you ingest too much, you will probably get sick to your stomach and throw up the excess. There is no generally acceptable lethal dose of penicillin. Most prescriptions do not contain enough peniciliin to even make you sick. ...Read more

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Can you tell me how has penicillin advanced since ww2?

Can you tell me how has penicillin advanced since ww2?

Penicillin: Penicillin as advanced from Penicillin G to Penicillin V, which is more stable, to other products such as ampicillin, amoxicillin, piperacillin, dicloxacillin, nafcillin, oxacillin - these are all derivatives which are able to kill other bacteria species more effectively than Penicillin G or V. These advances are wonderful. ...Read more

Dr. Sewa Legha
5 doctors shared insights

Unasyn (Definition)

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