Supplement stacks / Codeine + Magnesium
Can You Take Codeine with Magnesium?
Taking codeine and magnesium together may pose some risks, particularly related to the potential for magnesium to affect the absorption of codeine. While magnesium is generally safe at typical dosages, caution is advised due to the limited evidence on codeine's interactions and its potential side effects.
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.
Magnesium may affect the absorption of codeine, potentially leading to reduced effectiveness. It is advisable to separate the intake of these substances by at least 2 hours.
Use with caution, especially in individuals with respiratory issues or a history of substance abuse. Monitor for signs of dependence.
Typical dosage: Follow manufacturer guidelines.
- Drowsiness
- Constipation
- Nausea
- Consult healthcare provider if you have respiratory issues or a history of substance abuse.
- Use caution when driving or operating machinery.
Generally safe at typical dosages; caution in individuals with kidney disease.
Typical dosage: 200-400 mg daily.
- Diarrhea
- Nausea
- Abdominal cramping
- Consult healthcare provider if you have kidney disease.
- Excessive intake may lead to magnesium toxicity.
Take magnesium at least 2 hours apart from codeine to minimize interaction risks.
Can you take Codeine and Magnesium together?
Taking codeine and magnesium together may pose some risks, particularly related to the potential for magnesium to affect the absorption of codeine. While magnesium is generally safe at typical dosages, caution is advised due to the limited evidence on codeine's interactions and its potential side effects.
How safe is the Codeine and Magnesium combination?
Our analysis of publicly available medical sources scores this combination 6/10 (medium risk). This is an informational estimate, not medical advice — always confirm with a healthcare professional.
When should you take Codeine and Magnesium?
Take magnesium at least 2 hours apart from codeine to minimize interaction risks.
Taking more than these two? Run your complete supplement list — plus any medications — through the live checker for a combined analysis.
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Analysis generated August 28, 2026 · Sources include NIH, Mayo Clinic, WebMD, and Examine.com · How our analysis works