Merlin 1.04 g Medicated Collar for Large Sized Dogs

As the collar exerts its full effect after one week, the collar should preferably be
applied 1 week before animals are likely to become exposed to infestation.
Ticks and sandflies will be killed and fall off the host within 48 and 24 hours after
exposure, respectively, without having had a blood meal, as a rule. An attachment of
single ticks or bite of single sandflies after treatment cannot be excluded. For this
reason, transmission of infectious diseases by ticks or sandflies cannot be
completely excluded if conditions are unfavourable.
For optimal control of flea infestations in multi-pet households, all dogs in the
household should be treated at the same time.
Fleas from pets often infest the animal’s basket, bedding and regular resting areas,
such as carpets and soft furnishings. These should be treated in cases of massive
infestation and upon the initiation of control measures with a suitable insecticide, and
vacuumed regularly.
The influence of shampooing on the duration of efficacy has not been investigated.
Occasional contact with water does not reduce the effectiveness of the collar.
Unnecessary use of antiparasitics or use deviating from the instructions given in the
SPC may increase the resistance selection pressure and lead to reduced efficacy.
The decision to use the product should be based on confirmation of the parasitic
species and burden, or of the risk of infestation based on its epidemiological features,
for each individual dog.
Resistance to pyrethroids and in particular to deltamethrin has been reported in fleas
(C. felis) and ticks (Rhipicephalus sanguineus) in dogs. The use of this product
should take into account local information about susceptibility of the target parasites,
where available.”

Special precautions for safe use in the target species:
In case of skin lesions, remove the collar until symptoms have resolved.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
Accidental ingestion of this veterinary medicinal product may cause adverse
reactions, including neurotoxic effects.
Keep the collar in the sachet until use. Do not smoke, eat or drink while handling the
collar. Do not allow children to play with the collar or to put it into their mouths.

May 2023
Divergence from GB MA following 00994/2022
Unlimited renewal: 03369/2022
Immediately dispose of any remnants or cut-offs of the collar. Wash hands with cold
water after fitting the collar.
Avoid prolonged contact with the collar or dog wearing the collar. This includes
sharing a bed with dogs wearing the collar; this is particularly important for children.
In case of accidental oral exposure or ingestion, seek medical advice immediately
and show the package leaflet or the label to the physician.
Deltamethrin may cause hypersensitivity (allergic) reactions in sensitive people.
People with known hypersensitivity to deltamethrin should avoid contact with the
veterinary medicinal product and the treated animal. Seek medical advice in case of
hypersensitivity reactions.
Special precautions for the protection of the environment:
Deltamethrin is toxic for aquatic organisms. Dogs wearing the collar are not allowed
to enter watercourses.