First two words that comes to mind after reading words posted above you..

[Effect]

Hydromorphone hippo

 

[Waffle Sock]

dimethyltryptamine dinosaur

 

[Effect]

Diamorphine dingo

 

[Waffle Sock]

Cannibus Catfish

 

[Effect]

Temazepam tortise

 

[Waffle Sock]

benzodiazepine bengal

 

[Effect]

Amphetamine ardvark

 

[Waffle Sock]

mescaline muskrat

 

[Effect]

Cocaine cactus

 

[The Doc.]

Crack cow

 

[Waffle Sock]

Phencyclidine pinetree

 

[The Doc.]

Diladid donkey

 

[Waffle Sock]

fentanyl ferret

 

[Effect]

Oxazepam octopus

 

[Waffle Sock]

Codeine cobra

 

[Effect]

Morphine mongoose

 

[Waffle Sock]

Ketamine kangaroo

 

[The Doc.]

Heroin horse

 

[MrCookiE]

Brown town

 

[herbavore]

clear heart