Supplement stacks / Duloxetine + Magnesium

Can You Take Duloxetine with Magnesium?

Duloxetine is an antidepressant that can interact with magnesium, particularly affecting absorption and efficacy. While magnesium is generally safe, its interaction with duloxetine may require careful timing to avoid potential absorption issues. Users should consult their healthcare provider for personalized advice.

Safety at a glance
Medium risk
Safety score7/10

Conservative, AI-assisted reading of publicly available medical sources (NIH, Mayo Clinic, WebMD, Examine.com). Informational only — it can't account for your medications, conditions, or genetics.

Known interactions
Duloxetine × Magnesium
medium

Magnesium may affect the absorption of duloxetine, potentially reducing its effectiveness. It is advisable to space the intake of these substances by at least 4 hours.

Duloxetine

Generally well-tolerated, but may cause side effects such as nausea, fatigue, and dizziness. Monitor for any unusual symptoms.

Typical dosage: Follow manufacturer guidelines; typically 30-120 mg daily.

Common side effects:
  • Nausea
  • Dry mouth
  • Fatigue
  • Dizziness
  • Insomnia
Warnings:
  • Consult healthcare provider for potential interactions with other medications.
  • Monitor for worsening mood or suicidal thoughts.
Magnesium

Generally safe at recommended doses; caution in individuals with kidney disease.

Typical dosage: 200-400 mg daily.

Common side effects:
  • Diarrhea
  • Nausea
  • Abdominal cramping
Warnings:
  • High doses may cause gastrointestinal upset.
  • Consult healthcare provider if you have kidney issues.
Timing

Take magnesium at least 4 hours apart from duloxetine to minimize absorption issues.

Frequently asked questions

Can you take Duloxetine and Magnesium together?

Duloxetine is an antidepressant that can interact with magnesium, particularly affecting absorption and efficacy. While magnesium is generally safe, its interaction with duloxetine may require careful timing to avoid potential absorption issues. Users should consult their healthcare provider for personalized advice.

How safe is the Duloxetine and Magnesium combination?

Our analysis of publicly available medical sources scores this combination 7/10 (medium risk). This is an informational estimate, not medical advice — always confirm with a healthcare professional.

When should you take Duloxetine and Magnesium?

Take magnesium at least 4 hours apart from duloxetine to minimize absorption issues.

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Analysis generated August 28, 2026 · Sources include NIH, Mayo Clinic, WebMD, and Examine.com · How our analysis works