Heartworm prevention is very important in some geographic regions. Perhaps the most well known brand of heartworm prevention is Heartguard, which is available by prescription only and requires a negative heartworm test annually prior to dispensing. For anyone interested, the two active ingredients for Heartguard are Ivermectin (for heartworm) and Pyrantel Pamoate (for other parasites.) Both of these ingredients are actually available online without a prescription. You can get them from Amazon:
Pyrantel Pamoate- $30: https://www.amazon.com/Pyrantel-Pamoate-Suspension-50-bottle/dp/B019QSE476/ref=as_li_ss_tl?ie=UTF8&qid=1461699178&sr=8-1&keywords=pyrantel&linkCode=sl1&tag=carcarout-20&linkId=7e7b0dfca1623e0e69f8a93af7a87e19
Syringes for measuring- $10: https://www.amazon.com/Pack-Syringes-Refilling-Measuring-E-Liquids/dp/B01CFJ51X4/ref=sr_1_9?ie=UTF8&qid=1473222345&sr=8-9&keywords=syringe+1+ml
Directions for using 0.08% sheep drench-
Ivermectin sheep drench solution contains a lower concentration than other ivermectin products, so it can be used without diluting it first. Ivemectin is given orally (never use pour-on solutions for heartworm prevention).
Dosage using Ivermectin 0.08% solution for heartworm prevention (you may want to double these doses for better protection):
- up to 14 pounds: 0.05 cc (one-half of 0.1 cc, or 1 drop from an eye dropper, assuming 20 drops per ml)
- 15 to 29 pounds: 0.1 cc
- 30 to 58 pounds: 0.2 cc
- 59 to 88 pounds: 0.3 cc
- 89 to 117 pounds: 0.4 cc
- 118 to 147 pounds: 0.5 cc
Ivermectin solution is given orally. It’s best to squirt it into the mouth, rather than adding to food, to be sure your dog gets it all.
I give my Bichons just over .1 cc or .1 ml. This is a double dose for better protection. Please note that this is a very small amount– about 3 drops! I use the smallest syringe size and squirt it into their mouth. They act like it tastes nasty!! The sheep drench doesn’t appear to have an expiration date. One container will last you FOREVER!
Directions for using Pyrantel Pamoate-
The dosage for Pyrantel is 1 ml/10 lbs. of body weight. So I give my Bichons about 1.5 mls using the 3 ml size syringe. I squirt it into their mouth- they don’t mind the taste of this one! Pyrantel usually has about a 1 1/2 year expiration date from the time of purchase. Probably keeping it in the fridge would preserve it longer. The 16 oz. bottle goes a LONG way!
Tip: You may want to mark with a sharpie on your syringe the dose for your dog so you don’t have to remember it. Or you can write it on the bottles. Basically it is about .1 ml/10 lbs. (double dose) for the Ivermectin and 1 ml/10 lbs. for the Pyrantel.
*Please note that this information is not meant as a substitute for veterinary care. Collies may be sensitive to Ivermectin.