Drug Interaction Report
3 potential interactions and/or warnings found for the following 2 drugs:
- ampicillin
- bifidobacterium infantis / lactobacillus acidophilus / streptococcus thermophilus
Interactions between your drugs
ampicillin lactobacillus acidophilus
Applies to: ampicillin, bifidobacterium infantis / lactobacillus acidophilus / streptococcus thermophilus
ADJUST DOSING INTERVAL: Coadministration of oral probiotic preparations with oral antibiotics may reduce the efficacy of the probiotic. It has been theorized that concomitant antibiotics may kill the live organisms found in lactobacillus-, bacillus coagulans-, and bifidobacteria-containing oral probiotic preparations. However, the clinical significance of the interaction has not been established.
MANAGEMENT: Although data are limited, it may be prudent to advise patients to take oral probiotics at least 1 to 2 hours before or after an oral antibiotic.
References (3)
- Clarion Brands, Inc. (2020) Florajen Probiotics. https://www.florajen.com/products/florajen-women
- Xiao JZ, Takahashi S, Odamaki T, Yaeshima T, iwatsuki k (2010) "Antibiotic susceptibility of bifidobacterial strains distributed in the Japanese market." Biosci Biotechnol Biochem, 74, p. 336-42
- dwyer a (2024) Taking probiotics with antibiotics https://www.optibacprobiotics.com/learning-lab/in-depth/general-health/probiotics-with-antibiotics
ampicillin bifidobacterium infantis
Applies to: ampicillin, bifidobacterium infantis / lactobacillus acidophilus / streptococcus thermophilus
ADJUST DOSING INTERVAL: Coadministration of oral probiotic preparations with oral antibiotics may reduce the efficacy of the probiotic. It has been theorized that concomitant antibiotics may kill the live organisms found in lactobacillus-, bacillus coagulans-, and bifidobacteria-containing oral probiotic preparations. However, the clinical significance of the interaction has not been established.
MANAGEMENT: Although data are limited, it may be prudent to advise patients to take oral probiotics at least 1 to 2 hours before or after an oral antibiotic.
References (3)
- Clarion Brands, Inc. (2020) Florajen Probiotics. https://www.florajen.com/products/florajen-women
- Xiao JZ, Takahashi S, Odamaki T, Yaeshima T, iwatsuki k (2010) "Antibiotic susceptibility of bifidobacterial strains distributed in the Japanese market." Biosci Biotechnol Biochem, 74, p. 336-42
- dwyer a (2024) Taking probiotics with antibiotics https://www.optibacprobiotics.com/learning-lab/in-depth/general-health/probiotics-with-antibiotics
Drug and food interactions
ampicillin food
Applies to: ampicillin
ADJUST DOSING INTERVAL: Certain penicillins may exhibit reduced gastrointestinal absorption in the presence of food. The therapeutic effect of the antimicrobial may be reduced.
MANAGEMENT: The interacting penicillin should be administered one hour before or two hours after meals. Penicillin V and amoxicillin are not affected by food and may be given without regard to meals.
References (6)
- Neu HC (1974) "Antimicrobial activity and human pharmacology of amoxicillin." J Infect Dis, 129, s123-31
- Welling PG, Huang H, Koch PA, Madsen PO (1977) "Bioavailability of ampicillin and amoxicillin in fasted and nonfasted subjects." J Pharm Sci, 66, p. 549-52
- McCarthy CG, Finland M (1960) "Absorption and excretion of four penicillins." N Engl J Med, 263, p. 315-26
- Cronk GA, Wheatley WB, Fellers GF, Albright H (1960) "The relationship of food intake to the absorption of potassium alpha-phenoxyethyl penicillin and potassium phenoxymethyl penicillin from the gastrointestinal tract." Am J Med Sci, 240, p. 219-25
- Klein JO, Sabath LD, Finland M (1963) "Laboratory studies on oxacillin. I: in vitro activity against staphylococci and some other bacterial pathogens. II: absorption and urinary excretion in normal young." Am J Med Sci, 245, p. 399-411
- Neuvonen PJ, Elonen E, Pentikainen PJ (1977) "Comparative effect of food on absorption of ampicillin and pivampicillin." J Int Med Res, 5, p. 71-6
Therapeutic duplication warnings
No duplication warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
See also:
Augmentin
Augmentin is a prescription antibiotic combining amoxicillin and clavulanate to treat bacterial ...
Bactrim
Bactrim (sulfamethoxazole and trimethoprim) is an antibiotic used to treat ear infections, urinary ...
Ozempic
Learn about Ozempic (semaglutide) for type 2 diabetes treatment, weight management, cardiovascular ...
Keflex
Keflex (cephalexin) is used to treat infections caused by bacteria, including respiratory ...
Mucinex
Mucinex (guaifenesin) is used to relieve the symptoms of cough and loosen mucus in the chest ...
Cipro
Cipro (ciprofloxacin) is a fluoroquinolone antibiotic used to treat bacterial infections. Learn ...
Zithromax
Zithromax (azithromycin) treats infections caused by bacteria, such as respiratory infections, skin ...
Macrobid
Macrobid (nitrofurantoin) is an antibiotic used to treat urinary tract infections. Includes side ...
Rocephin
Rocephin (ceftriaxone) is used to treat bacterial infections, including severe or life-threatening ...
Learn more
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Check Interactions
To view an interaction report containing 4 (or more) medications, please sign in or create an account.
Save Interactions List
Sign in to your account to save this drug interaction list.