Best Nitroimidazole Antimicrobial for giardiasis
The 9 Nitroimidazole Antimicrobial options we list for giardiasis are all Metronidazole— the same active ingredient in different brands or formulations, so they aren’t ranked against each other on effectiveness. Our score reflects each product’s FDA recall-safety record; the practical choice is brand vs generic, dose, and cost. Compare them with all treatments for giardiasis or the full Nitroimidazole Antimicrobial class. Not medical advice — always consult a professional.
Quick answer: Of the 9 nitroimidazole antimicrobial drugs we rate for giardiasis, all are available as lower-cost generics, and most are topical. Our ranking reflects each drug’s FDA recall-safety record — not clinical effectiveness for giardiasis; the right choice depends on your situation, so confirm it with your prescriber.
How nitroimidazole antimicrobial work
Nitroimidazole antibiotics (such as metronidazole) are activated inside oxygen-free bacteria and parasites, where they turn into reactive forms that break and destabilize the microbe's DNA. This kills the germ while largely sparing the body's own cells.
These are all Metronidazolein different brands or formulations, so we don’t rank them against each other — the list below is for comparing brand vs generic, dose, and typical cost, not for picking a “best” one on effectiveness.
All 9 nitroimidazole antimicrobial products
vandazole
PrescriptionFDA-sourced
Vandazole (Metronidazole) is a nitroimidazole antimicrobial used to treat Abscess, Amebiasis, Bacteroides Infections, Bacterial Endocarditis.
Pharmacy pays
From ~$0.08· 5 formsflagyl i.v. rtu in plastic container
Boxed warningPrescriptionFDA-sourced
Flagyl I.V. Rtu in Plastic Container (Metronidazole) is a nitroimidazole antimicrobial used to treat Abscess, Amebiasis, Bacteroides Infections, Bacterial Endocarditis.
Pharmacy pays
From ~$0.08· 5 formslikmez
Boxed warningPrescriptionFDA-sourced
Likmez (Metronidazole) is a nitroimidazole antimicrobial used to treat Abscess, Amebiasis, Bacteroides Infections, Bacterial Endocarditis.
Pharmacy pays
From ~$0.08· 5 formsmetrocream
PrescriptionFDA-sourced
Metrocream (Metronidazole) is a nitroimidazole antimicrobial used to treat Abscess, Amebiasis, Bacteroides Infections, Bacterial Endocarditis.
Pharmacy pays
From ~$0.08· 5 formsmetrogel
PrescriptionFDA-sourced
Metrogel (Metronidazole) is a nitroimidazole antimicrobial used to treat Abscess, Amebiasis, Bacteroides Infections, Bacterial Endocarditis.
Pharmacy pays
From ~$0.08· 5 formsmetrolotion
PrescriptionFDA-sourced
Metrolotion (Metronidazole) is a nitroimidazole antimicrobial used to treat Abscess, Amebiasis, Bacteroides Infections, Bacterial Endocarditis.
Pharmacy pays
From ~$0.08· 5 forms
metronidazole
PrescriptionFDA-sourced
Metronidazole is a nitroimidazole antimicrobial used to treat Abscess, Amebiasis, Bacteroides Infections, Bacterial Endocarditis.
Pharmacy pays
From ~$0.08· 5 formsnoritate
PrescriptionFDA-sourced
Noritate (Metronidazole) is a nitroimidazole antimicrobial used to treat Abscess, Amebiasis, Bacteroides Infections, Bacterial Endocarditis.
Pharmacy pays
From ~$0.08· 5 formsnuvessa
PrescriptionFDA-sourced
Nuvessa (Metronidazole) is a nitroimidazole antimicrobial used to treat Abscess, Amebiasis, Bacteroides Infections, Bacterial Endocarditis.
Pharmacy pays
From ~$0.08· 5 formsFrequently asked
- What is the best nitroimidazole antimicrobial for giardiasis?
- The Nitroimidazole Antimicrobial options we list for giardiasis are all Metronidazole — the same active ingredient in different brands or formulations — so there's no single "best" one on effectiveness; the practical choice is brand vs generic, dose, and cost. Always consult a professional.
- Which nitroimidazole antimicrobial drugs treat giardiasis?
- pharmaranks lists 9 Nitroimidazole Antimicrobial products used for giardiasis, per NIH RxClass drug-classification data — each independently rated and ranked above.
- How are these ranked?
- By our independent score, currently based on FDA regulatory recall-safety data (the methodology blends additional sources as they come online). See the How we rate page.