Specifically, anthelmintics are divided into internal drive and external drive.
Internal drive is mainly to drive away parasites in the body, such as roundworms, hookworms, tapeworms and so on.
The outer zone is mainly used to repel parasites on the body surface, such as fleas, lice, mites and ticks.
From the form of insect repellent preparations, it can be divided into oral tablets, sprays and drops.
This combination will produce many kinds, mainly the following:
Oral internal drive, oral external drive, oral internal drive, spray external drive, drip external drive, drip internal drive.
You can choose according to your own needs. Generally speaking, oral all-wheel drive is the most expensive, because it is convenient to take orally, so it is expensive ~
Then each insect repellent has its own insect repellent spectrum because of its different components and patents.
The following is a classification chart of commonly used anthelmintics for reference only.