Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Doxepin (Silenor) and protriptyline are both tricyclic antidepressants (TCAs) used to treat different conditions. Doxepin is primarily used for insomnia, specifically to help you stay asleep, while protriptyline is used to treat depression. Doxepin is taken once daily as a tablet before bedtime, whereas protriptyline needs to be taken 3 to 4 times a day. Doxepin is available in both brand-name and generic forms, while protriptyline is only available as a generic since the brand Vivactil is no longer available. Common side effects of doxepin include sleepiness and tiredness, while protriptyline can cause headache, blurry vision, and an upset stomach. Both medications can increase the risk of developing or worsening glaucoma. They may also increase the risk of heart problems.
Doxepin (Silenor)
Protriptyline
Doxepin (Silenor)
Protriptyline
Summary of Silenor vs. Vivactil
Summary for Tricyclic antidepressant
Prescription only
Doxepin (Silenor) is a tricyclic antidepressant that's used to help adults who have insomnia (trouble sleeping) stay asleep. Doxepin (Silenor) is a tablet that you take by mouth 30 minutes before bedtime. As expected, the most common side effects are sleepiness and tiredness, so only take the medication when you're ready to fall asleep for the night. Unlike some other sleep medications, doxepin (Silenor) isn't considered a controlled substance. Doxepin (Silenor) is available as brand-name and generic versions.
Summary for Tricyclic antidepressant
Prescription only
Protriptyline is used to treat depression. It's not as commonly used today as other newer antidepressants because it needs to be taken 3 to 4 times per day. In addition, it can cause many side effects including headache, blurry vision, restlessness, and stomach-upset.