Improved Availability for Cases in Need
Since summer, veterinarians in the
United States have been struggling with limited or exhausted
supplies of Immiticide®, the only product approved
for killing adult heartworms. The manufacturing difficulties are
persistent, but veterinarians may contact Merial directly for
access to rationed supplies of the product imported from Europe.
Merial’s press release follows here, as well as a link to the
American Heartworm’s Society’s suggestions for clinical
management of heartworm patients until the drug is available.
Merial Statement on
availability of IMMITICIDE® (melarsomine dihydrochloride)
In August, Merial informed veterinarians that the company
that manufactures IMMITICIDE® (melarsomine
dihydrochloride) is experiencing technical issues in their plant
that will temporarily affect their ability to provide finished
product to us.
With the cooperation of FDA’s Center for Veterinary Medicine (CVM),
Merial has arranged as a temporary measure to import limited
quantities of IMMITICIDE from our European supplier on an
intermittent basis. While this product is used in other
countries, it is not FDA-approved for use in the United States.
However, due the critical need for the product, FDA/CVM has
agreed for Merial to make IMMITICIDE available under a
Restricted Distribution Program.
Merial has maintained a record of clinics that have called
us to indicate they have active heartworm cases in need of
treatment. We will contact these clinics to complete the
order process as appropriate.
As clinics identify new dogs that require treatment with
IMMITICIDE, we ask that they call Customer Care at
1-888-MERIAL-1 (1-888-637-4251), option 1 to report the case
and request product. Requests will be added to the list and
as product becomes available they will be contacted in the
order in which the case was reported.
Veterinarians will be able to
distinguish this imported product by lot numbers that begin with
the letters “MR” on the vial containing the freeze-dried cake.
Merial requests that veterinarians record the lot numbers for
the European IMMITICIDE and, as with any product, report any
Veterinarians who have technical questions may contact our
Veterinary Technical Solutions team at 1-888-637-4251, Option 3.
For information on heartworms and heartworm disease, visit the
American Heartworm Society Website at
Merial and the IMMITICIDE manufacturer fully understand the
critical need for the product and are continuing to work
together to return to full supply as quickly as possible.
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Links from this article
The American Heartworm
Society: Guidance for Heartworm Disease Management During the Adulticide