Deworming, also known as ‘worming’ or ‘drenching’, is the process of removing parasites from the body of a horse. These parasites, known as worms or helminths, can live in the digestive system and cause a range of health problems. Common types of worms include:
- Large Strongyles
- Small Strongyles
- Threadworms
- Pinworms
- Tapeworms
The process of deworming involves using an anthelmintic, which is a type of medication that is designed to kill worms. This medication can be administered orally or by injection, depending on the type of worm being targeted.
How Long Does it Take for a Dewormer to Work?
The amount of time it takes for a dewormer to work depends on a few factors, including the type of worm being targeted, the type of medication used, and the size of the horse. Generally speaking, it can take anywhere from a few hours to several days for a dewormer to work.
Large Strongyles
Large strongyles are the most common type of parasite found in horses and can cause a range of health problems, including colic and anemia. The dewormer ivermectin is the most commonly used medication to treat these worms, and it typically takes between 4-6 hours for the medication to start working.
Small Strongyles
Small strongyles are smaller than large strongyles and can be more difficult to detect. The dewormer fenbendazole is the most commonly used medication to treat these worms, and it typically takes between 12-24 hours for the medication to start working.
Threadworms
Threadworms are a type of parasitic worm that can cause a range of digestive and respiratory problems. The dewormer moxidectin is the most commonly used medication to treat these worms, and it typically takes between 8-12 hours for the medication to start working.
Pinworms
Pinworms are a type of parasitic worm that can cause itching and irritation around the anal area. The dewormer pyrantel is the most commonly used medication to treat these worms, and it typically takes between 4-6 hours for the medication to start working.
Tapeworms
Tapeworms are a type of parasitic worm that can cause poor appetite, weight loss, and anemia. The dewormer praziquantel is the most commonly used medication to treat these worms, and it typically takes between 8-12 hours for the medication to start working.
Factors That Affect How Long it Takes for a Dewormer to Work
There are a few factors that can affect how long it takes for a dewormer to work, including:
- Type of Worm – Different types of worms may require different medications, and each medication has a different rate of effectiveness.
- Type of Medication – Different types of medications may work more quickly or slowly than others, depending on the type of worm being targeted.
- Size of Horse – Larger horses may require more medication, and this can affect the rate of effectiveness.
Signs That a Dewormer is Working
Once a dewormer has been administered, there are a few signs that can indicate whether or not it is working. These signs may include:
- Reduced appetite
- Weight loss
- Improved coat and skin condition
- Improved energy levels
- Reduced coughing
- Reduced itchiness around the anal area
Side Effects of Dewormers
Although dewormers are generally safe for horses, there are a few potential side effects that owners should be aware of. Some of the most common side effects include:
- Gastrointestinal upset
- Diarrhea
- Lethargy
- Lack of appetite
- Weight loss
If any of these side effects are observed after administering a dewormer, owners should consult with a veterinarian as soon as possible.
Tips for Effective Deworming
In order to ensure that a dewormer is as effective as possible, owners should follow a few simple tips:
- Follow the instructions provided by the manufacturer of the dewormer.
- Administer the dewormer in the morning or evening, when the horse’s digestive system is not as active.
- Administer the dewormer with food, as this will help to reduce the risk of gastrointestinal upset.
- Administer the dewormer according to the horse’s weight, as this will ensure that the correct dosage is given.
- Have a fecal egg count performed before administering a dewormer, as this will help to determine the type and number of worms present.
Conclusion
Deworming is an important part of horse care, as it can help to prevent a range of health problems. The amount of time it takes for a dewormer to work depends on a few factors, including the type of worm being targeted, the type of medication used, and the size of the horse. Generally speaking, it can take anywhere from a few hours to several days for a dewormer to work. It is important for owners to follow the instructions provided by the manufacturer of the dewormer and to have a fecal egg count performed before administering the medication.