General anesthetics are mainly used when the dog is required to be unconscious for a long duration of time such as surgery.
Once they have been fully absorbed into the bloodstream, general anesthetics will block any pain sensation, cause muscle relaxation and prevent movement during the surgical procedure.
One good example of a commonly used general anesthetic is Thiopental, which is a short-acting barbiturate that is commonly used for very short procedures such as the removal of porcupine quills.
When injected into the vein, unconsciousness usually occurs within a minute after the drug has been administered.
One good example of a pre-anesthetic is Diazepam/valium that is mainly used to calm down the dog before surgery.
When administering sedatives and tranquilizers the animals must not be pregnant because the sedatives can lead to birth defects.
Finally, they are also prone to separation anxiety where they become afraid and anxious when left alone.
A sedative is any substance that can reduce irritability or excitement by inducing sedation, i.e.
it puts the brain to sleep in both animals and human beings.
For a much faster result, sedatives and tranquilizers are usually injected directly into a muscle or into the bloodstream through the veins.
Furthermore, sedatives and tranquilizers are also used as pre-anesthetics so as to calm down the dog before the anesthesia is administered.
Also, if the pet wakes up, feeling alone and confused after sedation, the grossness and panic that may follow is usually much worse than the one you were hoping to avoid.