Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Amitriptyline (formerly branded as Elavil) and amoxapine (formerly branded as asendin) are both tricyclic antidepressants (TCAs) used to treat depression, but they have some key differences. Amitriptyline, available as a generic, is also used off-label for nerve pain and migraine prevention. It can cause side effects like sleepiness and weight gain, and it interacts with many other medications. Amoxapine, also available as a generic, is used for depression that comes with anxiety or agitation. It might work faster than amitriptyline but has a higher risk of side effects, including drowsiness and dry mouth. Unlike amitriptyline, amoxapine can cause a movement condition called tardive dyskinesia and a rare but serious condition called neuroleptic malignant syndrome. Both medications can increase the risk of suicidal thoughts, especially in people under 24.
Amitriptyline
Amoxapine
Amitriptyline
Amoxapine
Summary of Elavil vs. Amoxapine
Summary for Tricyclic antidepressant
Prescription only
Amitriptyline is FDA approved to treat depression. But it isn't as commonly used today as other antidepressants because it can cause a lot of side effects, such as sleepiness and weight gain. In addition, amitriptyline has many interactions with other medications, including other antidepressants, sedatives, and antihistamines. But despite the side effects and interactions, amitriptyline is often used off label for nerve pain due to diabetes and migraine prevention. While its brand name Elavil is no longer available, amitriptyline is available as a generic medication.
Summary for Tricyclic antidepressant
Prescription only
Amoxapine is an antidepressant that's used for people who have both depression and anxiety. But, it's not a first-choice option because it has a higher risk of side effects. Drowsiness, dry mouth, constipation, and blurry vision are the most common side effects of amoxapine. The brand name Asendin is no longer sold in the United States, but it's still available as a lower-cost generic tablet.
Indications of Elavil vs. Amoxapine
Indications for
•Depression
Indications for
•Depression that comes along with anxiety or agitation
Pros and Cons of Elavil vs. Amoxapine
Pros and Const for Tricyclic antidepressant
Pros
•Available in many different strengths
•Available as a lower-cost, generic form
•Can take with or without food
Cons
•Has many unpleasant side effects compared to other antidepressants
•Can cause withdrawal symptoms if you suddenly stop taking it after long-term use
•Not the best choice for people with heart problems, glaucoma, or seizures or people age 65 years and older