This plant is probably most closely related to:
Ferns
The answer would be: T<span>hese drugs are similar but some clients respond better to one than the other.
Elavil and anafranil come from similar drug family of amitriptyline type. But they have a different structure which will have some effect on the pharmacokinetic and pharmacodynamic of the drug.
This could lead to different response and results in the different patient. The drug is similar, but the effect might be different.</span>