Parasite-S (Formalin) *New Label Extension*

//Parasite-S (Formalin) *New Label Extension*

Parasite-S (Formalin) *New Label Extension*

Globally recognized as the most effective treatment for external parasites and fungus on fish and fish eggs. Parasite-S is approved for use on food fish in several countries around the world.

Contact us for pricing and assistance at Syndel’s USA office at (800) 283-5292, or Syndel’s Canadian Office at (800) 663-2282.  For International inquiries email


Please see the Resource Downloads section or News tab for a full write up on what’s new!

PARASITE-S (formalin) is an approved parasiticide for the control of external parasites and fungus on all finfish and eggs, as well as external Protozoa on penaeid shrimp. New users are encouraged to seek advice from a fish health professional prior to using this product.  Refer to the “Directions for Use”, and “SDS” links for details prior to treating fish of any life stage.  To monitor dosage rate or calculate effluent check out the Formaldehyde test Kits.

PARASITE-S (formalin) is manufactured in FDA and Health Canada approved and inspected production facilities.   The use of other grades of formaldehyde on fish may be in violation of FDA and Health Canada regulations as outlined in FDA Reminder to Aquaculture Producers Regarding Approved Formaldehyde.

COLD WEATHER NOTICE – Parasite-S is temperature sensitive and should not be allowed to reach temperatures below 40 degrees F. Regional weather conditions vary greatly and Syndel advises that all formalin users should to stock up on product prior to the cold weather season.  For more information, and to give us authorization to ship during questionable weather, please refer to our Cold Weather Authorization form.

Available Sizes within the USA: 4 x 1 gal Case,  55 gal Drum,  275 gal Tote
Available Sizes outside of USA: 208L Drum

For additional Syndel Product information such as availability, package sizes, pricing, and approvals/application details relevant to your country or region, please contact Syndel,

Resource Downloads

Parasite-S Label Extension

Parasite-S FOI Drug Summary

Parasite-S USA Insert

Parasite-S Canadian Insert Eng-French

Parasite-S SDS

Parasite-S SDS Canadian-English

Parasite-S SDS Canadian-French

Formalina Chile SDS

Cold Weather Authorization Form

Guide To Using Drugs Biologics Other Chemicals In Aquaculture

Treatment Calculator Excel 97-2003

Treatment Calculator Excel 2010

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