Dipping is a fair alternative for ivermectin in collie breeds and in
ivermectin sensitive individuals.
It is much easier to use a heartworm preventative, such as low dose Ivermectin that has been used extremely safely for decades (even in the «
Ivermectin sensitive» breeds).
Moxidectin is another microcyclic lactone that could be used tyo treat demodicosis (though probably not in
ivermectin sensitive animals).
In MDR1
ivermectin sensitive collies and other herding breeds where treatment with ivermectin is not advisable, dips are sometimes needed to augment daily treatment with oral milbemycin for maximum effect.
«This work was originally started by looking at
Ivermectin sensitive collies.
Not exact matches
To better identify
ivermectin -
sensitive dogs, one report recommends initially dosing
ivermectin at 50 µg / kg / day and then incrementally increasing the dose by 50 µg / kg during the first days of treatment until the target dose is achieved.19 Another way to gradually increase the dose of
ivermectin is to calculate the target dose and corresponding volume, and then give 25 %, 50 %, and 75 % of the total volume for several days before reaching the therapeutic volume (Table 6).
Dogs homozygous for this mutation (MDR1 - 1 delta) display an
ivermectin -
sensitive phenotype, developing severe neurotoxicosis after a single dose of
ivermectin.22 When
ivermectin is deemed necessary for a dog, testing for the MDR1 - 1 delta genotype before its use is available through Washington State University's Veterinary Clinical Pharmacology Laboratory (http://www.vetmed.wsu.edu/vcpl/).
Signs of
ivermectin toxicosis can occur in any breed but are most common in ivermectin - sensitive breeds such as collies and other herding breeds.20, 21 Ivermectin sensitivity is derived from a frameshift deletion mutation of the multidrug resistance gene (MDR1; the most recent nomenclature is ABC ±), resulting in a severely truncated, nonfunctional protei
ivermectin toxicosis can occur in any breed but are most common in
ivermectin - sensitive breeds such as collies and other herding breeds.20, 21 Ivermectin sensitivity is derived from a frameshift deletion mutation of the multidrug resistance gene (MDR1; the most recent nomenclature is ABC ±), resulting in a severely truncated, nonfunctional protei
ivermectin -
sensitive breeds such as collies and other herding breeds.20, 21
Ivermectin sensitivity is derived from a frameshift deletion mutation of the multidrug resistance gene (MDR1; the most recent nomenclature is ABC ±), resulting in a severely truncated, nonfunctional protei
Ivermectin sensitivity is derived from a frameshift deletion mutation of the multidrug resistance gene (MDR1; the most recent nomenclature is ABC ±), resulting in a severely truncated, nonfunctional protein product.
Doramectin — Doramectin, another avermectin, has been used in a study involving 23 dogs that received weekly subcutaneous injections of 600 µg / kg.10, 31 None of the animals showed adverse effects with doramectin; however, this drug should not be used in
ivermectin -
sensitive breeds of dogs.
The results of this study demonstrated that Collies
sensitive to the effects of 120 - mu - g of
ivermectin (20x) / kg show similar sensitivity to the effects of milbemycin oxine administered at 10 mg / kg (20x).
Please refer to Health Issues for important information on anti-heartworm drugs containing
Ivermectin, such as Heartguard, to which Collies and some Shelties are extremely
sensitive.
Certain dogs of the Collie breed are more
sensitive to the effects of
ivermectin administered at elevated dose levels (more than 16 times the target use level) than dogs of other breeds.
This practice rarely involves
ivermectin doses comparable to those in the small animal products, and involves doses that could be toxic to
ivermectin -
sensitive individuals, and most certainly involves doses that could be toxic if combined with spinosad.
Answer: Corgies are not a breed that is
sensitive to
ivermectin so Heartgard should be fine for your corgi.
That is particularly true if your dog is
sensitive to
ivermectin or reacts poorly to amitraz (Mitaban ®) dips.
Dogs
sensitive to
Ivermectin have an anomaly that allows the drug to pass through the blood brain barrier and right into the central nervous system, causing respiratory distress, seizures, comas and death.
Because Demodex cati lives deeper in the hair follicle, it is
sensitive to
ivermectin in a way that Demodex gatoi is not.
Some breeds have a faulty gene that means they are
sensitive to certain drugs such as
ivermectin — type heartwormers (including moxidectin, selamectin and doramectin), loperamide (for diarrhea), acepromazine (for sedation) and butorphanol (for pain relief), as well as some chemotherapeutic drugs.
Some Australian Shepherds and mini Aussies are highly
sensitive to
Ivermectin, available both as a single worming treatment and in a lower dosage as a heartworm preventive under the brand name Heartguard ®.
Not to be used by collies and some shepherds (dogs that are
sensitive to
Ivermectin) because of the brain barrier issue.
Studies with
ivermectin indicate that certain dogs of the Collie breed are more
sensitive to the effects of
ivermectin administered at elevated dose levels (more than 16 times the target use level) than dogs of other breeds.
This practice rarely involves
ivermectin doses comparable to those in the small animal products, certainly involves doses that could be toxic to
ivermectin -
sensitive individuals, and most certainly involves doses that could be toxic if combined with spinosad.
Collies and similar breeds of dogs can be more
sensitive to the side effects of
ivermectin than other breeds.
Dogs with MDR1 gene are especially
sensitive to certain medications containing
ivermectin, such as Heartgard and Iverhart.
***
Ivermectin should be used with caution in breeds known to be potential carriers of the MDR1 gene, a gene that can make carriers highly sensitive to ivermectin
Ivermectin should be used with caution in breeds known to be potential carriers of the MDR1 gene, a gene that can make carriers highly
sensitive to
ivermectinivermectin toxicity.
These breeds can be
sensitive to
ivermectin in medications.
*** Again,
Ivermectin should be used with caution in breeds known to be potential carriers of the MDR1 gene, a gene that can make carriers highly sensitive to ivermectin
Ivermectin should be used with caution in breeds known to be potential carriers of the MDR1 gene, a gene that can make carriers highly
sensitive to
ivermectinivermectin toxicity.
Ivermectin sensitivity — first described in 1983 some Collies are uniquely sensitive to ivermectin, which is used for parasite
Ivermectin sensitivity — first described in 1983 some Collies are uniquely
sensitive to
ivermectin, which is used for parasite
ivermectin, which is used for parasite treatment.
This will, however, very much depend on the amount consumed and whether or not the dog is
sensitive to
ivermectin.
Not all individuals of collie heritage are
sensitive to
ivermectin and a test is now available through Washington State University to determine whether an individual should be able to safely take
ivermectin or not.
Some individual dogs are
sensitive to
ivermectin and can die if subjected to a typical therapeutic dose for demodicosis.
It is a very effective treatment; however, certain breeds of dogs may be
sensitive to
ivermectin.
ProHeart 6 has been evaluated and found safe in pregnant and lactating females and breeding males,
ivermectin -
sensitive Collies and puppies ≥ 6 months of age.
McNabs are often
ivermectin -
sensitive dogs.
Selamectin, part of the macrocyclic lactones group is considered safe in dogs and has low or no adverse effects in
Ivermectin —
sensitive dogs.
The chief drawback in using
ivermectin and other macrocyclic lactones is that a few dogs are highly
sensitive to them.
Those dogs are not only more prone to be
sensitive to
ivermectin; they tend to be
sensitive to the entire family of avermectins which includes many of the drugs veterinarians use to treat parasites.
That said, there is an important caveat: Some individual dogs, those with the MDR1 mutation, are
sensitive to
ivermectin and can die if subjected to a typical therapeutic dose for demodicosis.
SAFETY: Studies with
ivermectin indicate that certain dogs of the Collie breed are more
sensitive to the effects of
ivermectin administered at elevated dose levels (more than 16 times the target use level of 6 mcg / kg) than dogs of other breeds.
In most cases,
ivermectin -
sensitive dogs are members of the collie - family, Old English Sheepdogs or other herding breeds.
Ivermectin demonstrated no signs of toxicity at 10 times the recommended dose (60 mcg / kg) in
sensitive Collies.