I know I've read that some here use topical for your GPs. I'm wondering if I can switch to topical, the best way to get it and also how to apply it since he already got an injection. Or do I just stick with the injections? I have seen Beaphar Spot-on when I've googled. Is that ok to use?
We have two other adult GPs and, were surprised with 4 babies last week from the "boy" we adopted. Do they all need treatment? The babies and mom are in a totally separate cage. The two males are in a shared cage with a c&c wall separating them. Thanks for your help!
- Supporter in 2019
Although Ivermectin has a long-standing safety and efficacy record when used correctly, it's important to use the correct product and to dose based on weight. We recommend dosing at least three times, 7 days apart. More stubborn cases often require another round.
Next, if you have a farm & feed store in your area, you can go there and look for Ivermectin -- either the injectible (which you will use topically not via injection) or the pour-on formula. Either will work, but you will need to make sure that this is just Ivermectin with no other anti-parasitic ingredients. If you can't find it locally, you can order it online:
Ivermectin 0.5% Pour-On
Ivermectin 1.0% Injectible (to be used topically)
Here is general dosing information to read first:
Here are the dosing charts, based on the weight of the guinea pig being treated:
0.5% Pour-On Formula
1.0% Injectible Formula
You will need accurate scales to weigh your guinea pig(s). In addition, you will need a 1cc syringe to dose the pour-on formula. For the injectible formula, you will also need a syringe with a needle to draw up the correct amount, as the top of the bottle is similar to an insulin bottle and requires a needle to draw it up.
The correct dose will not be more than a drop or two, but it's important to measure and dose precisely. If you are unsure or need us to double-check the dose, feel free to ask.
I would treat both males, if they are living together.
Last I checked Beaphar spot on contains 0,15mg ivermectin in one dose. The recommended amount of topical ivermectin is 0,5mg per kg that the guinea pig weighs.
But Beaphar does not recommend the 0,5mg, if I remember correctly it says to give a pig upto 500grams one dose, and a heavier pig 2 doses. And to repeat after a month. Following these directions treatment would most likely fail.
If dosed according to this site Beaphar spot on can be used, but it makes for very wet adult guinea pigs.
I’ve had trouble finding ivermectin, and eventually found one marketed for birds. It was a 0,12% solution, so my piggies were still pretty wet from it, but it was easy to draw up the correct amount with a 1cc syringe.