Can trazodone 50 mg be taken once in the morning and once at bedtime?

Trazodone 50 mg Twice Daily Dosing

No, you should not take trazodone 50 mg in the morning and at bedtime for insomnia. Major clinical practice guidelines explicitly recommend against using trazodone for insomnia treatment, and the FDA-approved dosing for depression requires much higher doses than 100 mg daily 1, 2.

Why This Dosing Regimen Is Not Recommended

Guideline-Based Contraindication for Insomnia

Both the American Academy of Sleep Medicine (2017) and the VA/DoD Clinical Practice Guidelines (2019) specifically advise against using trazodone for chronic insomnia disorder 1, 2. The evidence shows:

• No improvement in sleep efficiency compared to placebo
• No difference in sleep onset latency, total sleep time, or wake after sleep onset
• Only subjective sleep quality showed improvement, but this was outweighed by adverse effects
• Studies were of very short duration (mean 1.7 weeks) with limited follow-up 2

FDA-Approved Dosing for Depression

The FDA label for trazodone specifies that for its approved indication (major depressive disorder):

• Initial dose: 150 mg/day in divided doses 3
• Dose increases by 50 mg every 3-4 days as needed
• Outpatient maximum: 400 mg/day in divided doses
• Inpatient maximum: 600 mg/day in divided doses 3

Your proposed regimen of 100 mg/day total (50 mg twice daily) is below the therapeutic threshold for depression and not supported for any FDA-approved indication.

Clinical Context and Adverse Effects

Why Morning Dosing Is Problematic

Trazodone causes significant sedation and drowsiness, even at low doses (25-75 mg) 4. Taking 50 mg in the morning would likely cause:

• Daytime sedation interfering with function
• Increased fall risk, particularly in older adults
• Impaired cognitive performance during waking hours

The FDA label specifically notes that "occurrence of drowsiness may require the administration of a major portion of the daily dose at bedtime" 3, indicating morning dosing is contraindicated when sedation occurs.

Adverse Effect Profile

Trazodone carries significant risks that outweigh its limited benefits for insomnia 2:

• Orthostatic hypotension with fall risk
• Sedation/drowsiness with increased fall risk
• QTc prolongation with risk of ventricular arrhythmias
• Priapism (rare but serious)
• Blurred vision (OR = 17.50) 5
• Somnolence (OR = 7.34) 5

What You Should Do Instead

For Insomnia Treatment

If you're taking this for insomnia, evidence-based alternatives include:

First-line (preferred):

• Cognitive Behavioral Therapy for Insomnia (CBT-I) 2

Second-line pharmacologic options (if CBT-I unavailable/ineffective):

• Low-dose doxepin (3-6 mg at bedtime) - specifically approved for insomnia 2, 1
• Nonbenzodiazepine BZRAs (zolpidem, eszopiclone, zaleplon) at lowest effective dose for shortest duration 2, 1

For Depression Treatment

If prescribed for depression, the dose needs to be:

• Started at 150 mg/day in divided doses (e.g., 50 mg morning, 100 mg bedtime, or 75 mg twice daily)
• Taken shortly after meals or light snacks 3
• Gradually titrated upward based on response and tolerability

Critical Pitfalls to Avoid

1. Do not use trazodone as a sleep aid - guidelines explicitly recommend against this practice
2. Do not take morning doses if experiencing sedation - this increases fall risk and impairs daytime function
3. Do not abruptly discontinue - taper gradually to avoid withdrawal symptoms 3
4. Screen for bipolar disorder before starting - risk of manic activation 3

Consult your prescribing physician immediately to clarify the indication for this medication and adjust to an evidence-based dosing regimen. If prescribed for insomnia, request alternative treatments with proven efficacy. If prescribed for depression, the dose is inadequate and needs adjustment per FDA guidelines.