Trazodone vs. Silenor
See how Trazodone and Silenor compare on approved uses, dosing, side effects, and cost.
Key Takeaways
Trazodone is FDA-approved for depression and used off-label for sleep, while Silenor is FDA-approved specifically for sleep-maintenance insomnia.
Both drugs list drowsiness as their most common side effect, but trazodone's approved dose range is much higher than Silenor's fixed 3 mg or 6 mg dose.
Generic trazodone is typically far cheaper than brand-name Silenor, though a doctor should weigh cost against each drug's approved use before choosing.
Trazodone vs. Silenor Drug Summary
Trazodone
Trazodone is a serotonin antagonist and reuptake inhibitor (SARI) antidepressant approved by the FDA to treat major depressive disorder in adults. At much lower doses, it is widely prescribed off-label as a sleep aid because it causes drowsiness. For depression it is taken in divided daily doses; for off-label sleep use it is typically taken once, at bedtime.
Silenor
Silenor is a tricyclic antidepressant (doxepin) that, at very low doses, acts mainly as a selective antihistamine rather than a standard antidepressant. It is FDA-approved specifically to treat insomnia in adults who have trouble staying asleep. It comes as a 3 mg or 6 mg tablet taken once daily, close to bedtime.
Trazodone vs. Silenor Side Effects
Trazodone
Silenor
Trazodone vs. Silenor Dosage
Trazodone
Silenor
| STAGE | DOSE | WHEN |
| Starting dose | 25-50 mg at bedtime | At the start |
| Maximum dose | 50-100 mg at bedtime | If needed |
| Dose changes | 1 increase | As tolerated |
| STAGE | DOSE | WHEN |
| Starting dose | 3 mg once daily | At the start |
| Maximum dose | 6 mg once daily | If needed |
| Dose changes | 1 increase | As tolerated |
Trazodone
| STAGE | DOSE | WHEN |
| Starting dose | 25-50 mg at bedtime | At the start |
| Maximum dose | 50-100 mg at bedtime | If needed |
| Dose changes | 1 increase | As tolerated |
Silenor
| STAGE | DOSE | WHEN |
| Starting dose | 3 mg once daily | At the start |
| Maximum dose | 6 mg once daily | If needed |
| Dose changes | 1 increase | As tolerated |
Trazodone vs. Silenor Indications
Trazodone
Trazodone is FDA-approved to treat major depressive disorder in adults. It is also widely prescribed off-label, at much lower doses, to help with sleep problems, especially trouble staying asleep. This off-label sleep use is common in practice but has not been specifically studied or approved by the FDA.
FDA-approved for major depressive disorder (MDD) in adults
Off-label use for insomnia, especially sleep maintenance issues
Off-label use for anxiety, often when it occurs with depression
Not approved for use in children or teens
Silenor
Silenor is FDA-approved to treat insomnia marked by trouble staying asleep through the night. At its low 3 mg and 6 mg doses, it works mainly as an antihistamine rather than a typical antidepressant. Off-label, doxepin at much higher doses is also used to treat depression and anxiety.
FDA-approved for sleep-maintenance insomnia in adults
Off-label use for depression and anxiety at much higher doxepin doses
Not approved for pediatric insomnia
Not approved for obstructive sleep apnea
Trazodone vs. Silenor Pros and Cons
Trazodone
Trazodone's sedating effect makes it a popular off-label choice for sleep, backed by decades of clinical use in depression and sleep patients alike. Because it was studied and approved for depression rather than insomnia, its use as a sleep aid relies on clinical experience rather than an insomnia-specific label indication.
Pros
Generic and inexpensive, often just a few dollars per month with a discount coupon
Also FDA-approved for depression, useful if sleep problems overlap with low mood
Available in several tablet strengths, allowing dosing to be fine-tuned
Cons
Not FDA-approved for insomnia, so nightly dosing is based on experience, not a studied label dose
Carries a boxed warning for increased suicidal thoughts in children and young adults
Can cause priapism, a rare but medically urgent side effect in men
Higher rates of dizziness and lightheadedness, which can raise fall risk
Silenor
Silenor is the only low-dose doxepin product built and studied specifically for sleep-maintenance insomnia, so its label reflects that exact use. As a narrower, brand-name product, it has less flexibility and a much higher price than a multi-purpose generic like trazodone.
Pros
FDA-approved specifically for sleep-maintenance insomnia, backed by insomnia-focused trials
Very low doxepin dose limits the anticholinergic and cardiac effects seen at antidepressant doses
Simple fixed dosing, 3 mg or 6 mg, with no titration schedule to manage
Cons
Costs far more than generic trazodone, roughly $500 to $650 a month before savings programs, versus about $15 to $30 for trazodone
Only approved for staying asleep, not for trouble falling asleep
Not approved for depression or anxiety, despite being a low-dose antidepressant
Newer brand-name option, so there is less long-term real-world use than with trazodone
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