Medicines · Antiparasitic
Metronidazole
- Active Ingredient
- Metronidazole
- Medicine Type
- Antiparasitic
Observe and distinguish
Identification and context
Identity and formulation
Substance monograph for metronidazole. MetroPlex is a specific ornamental product (70% metronidazole, 30% excipients): its scoop, route and claims do not define a pure-substance dosage.
Supported indications
Indications must derive from diagnosis and an authorized product: some ornamental products list intestinal protozoa and anaerobic bacteria. Bloating, hole-in-the-head, ich or velvet alone do not identify a susceptible target.
Diagnostic prerequisites
Confirm host, diagnosis, net volume, water quality and exact formulation before use. Do not transfer directions between products.
Verify before intervening
Confirmation and decisions
Preparation and monitoring
MetroPlex is for ornamental, not food fish. United States: nitroimidazoles are covered by extra-label prohibitions in food-producing animals (21 CFR 530.41). EU: metronidazole is prohibited by Regulation (EU) 37/2010. Verify current local law.
Species and system compatibility
It is not universally safe for fish, invertebrates, plants or the biofilter. Assess species, route, exposure and combinations; limit environmental release and use antimicrobials only when indicated to reduce failure and resistance.
Interactions and contraindications
It is not universally safe for fish, invertebrates, plants or the biofilter. Assess species, route, exposure and combinations; limit environmental release and use antimicrobials only when indicated to reduce failure and resistance.
Proportionate actions
Management and monitoring
Adverse effects and failure
It is not universally safe for fish, invertebrates, plants or the biofilter. Assess species, route, exposure and combinations; limit environmental release and use antimicrobials only when indicated to reduce failure and resistance.
Operator safety
MetroPlex is for ornamental, not food fish. United States: nitroimidazoles are covered by extra-label prohibitions in food-producing animals (21 CFR 530.41). EU: metronidazole is prohibited by Regulation (EU) 37/2010. Verify current local law.
Regulatory status
Check authorisation, prescription status and conditions of use in the user’s jurisdiction; ornamental and food-producing animals are not interchangeable.
Evidence limitations
Manufacturer directions document only the stated formulation. Efficacy, safety and dosage do not automatically extend to the active substance or other products.
Active ingredient identity
Composition and chemical data
Nitroimidazole antibiotic and antiprotozoal medication.
Safety Hazards (GHS)
- Harmful if swallowed
- Harmful in contact with skin
- Harmful if inhaled
- Suspected of causing genetic defects
- May cause cancer
- Suspected of causing cancer
- May cause damage to organs through prolonged or repeated exposure
- Harmful to aquatic life with long lasting effects
Transparency
Information and documentation
Information
- Active Ingredient
- Metronidazole
- Medicine Type
- Antiparasitic
Documentation
- Product Page
Seachem — MetroPlex product information
MANUFACTURER DOCUMENTATIONCONTEXT ONLYManufacturer documentation is formulation-specific and is not independent evidence of efficacy.
- Product Page
21 CFR 530.41 — Prohibited extra-label uses
OFFICIAL LABELHIGHDirections apply only to the exact product, concentration, route, species, jurisdiction and label revision.
- Product Page
Regulation (EU) No 37/2010
REGULATORYHIGHApplies only to the stated jurisdiction, product, formulation and revision date.
- Chemical Data
PubChem — Metronidazole
CHEMICAL DATABASECONTEXT ONLYChemical identity data do not support aquarium dosing, efficacy or finished-product safety.
- Chemical Data
PubChem Chemical Data