Hydrogen peroxide (35% Perox Aid®)


35% Perox-Aid® (H2O2) is a liquid solution containing hydrogen peroxide that is applied as an immersion bath treatment. H2O2 is only available for purchase through Syndel USA. The primary goal of field studies conducted under INAD #11-669 is to evaluate the efficacy of H2O2 for controlling mortality caused by specific ectoparasites in marine finfish species. It is also expected that the additional data will be used to expand the current H2O2 label claim. INAD use is for non-labeled use only and all labeled use must follow the approved label. Multiple treatment regimens are available for H2O2 so the study protocol needs to be reviewed before any treatments are administered. The Investigational withdrawal period for H2O2 is zero days for treated fish under any of the allowed treatment regimens. To participate in the INAD Program for H2O2 visit the data collecting site.

Please read the Study Protocol prior to any treatments. It contains the protocol, SDS, and a copy of the forms to be used as a guide for collecting data that will be entered into the online INAD database. The FDA authorization letter(s) for this INAD is currently only available by emailing Bonnie Johnson.

Collect supportive and/or pivotal data needed to establish the effectiveness and safety of 35% PEROX-AID® to control mortality caused by extoparasites in a variety of marine fish species.
Drug Name
35% PEROX-AID® (hydrogen peroxide)

Drug Source

Syndel USA
1441 W Smith Rd
Ferndale, WA 98248
United States

Jason Montgomery
800-283-5292; Fax 360-384-0270
Target Pathogens
Ectoparasites of the genera Neobenedenia, Amyloodinium, Cryptocaryon, and Uronema in marine fish species.
Method of Administration
Immersion bath
Treatment Dosage
  • Option B: 50 - 200 mg/L;
  • Option C: up to 400 mg/L - saltwater sea cages
Treatment Regimen
  • Option B: Treatment duration is 30 - 60 min depending on dose; 3 consecutive or alternate days
  • Option C: 45 min; up to 3 times per week for saltwater fish in open-water sea cages
Investigational Withdrawal Period

None. Fish may be allowed to enter the food chain immediately after treatment.

Required Test Parameters

Investigator must collect mortality data throughout the 5 day pre-treatment, treatment, and 10 day post-treatment periods. Investigator should also report general fish behavior and any possible adverse effects relating to treatment.

Limitations or Restrictions on Use of Drug
  • Investigator must follow all instructions in the Study Protocol for INAD 11-669 regarding drug acquisition and handling, fish treatment and disposition, and data reporting requirements.
  • Drug discharge must be in compliance with localNPDES permitting requirements.
Required Fee
AADAP Contact Information