Yes, you can take omega-3 at night together with magnesium bisglycinate 440 mg and rosuvastatin 15 mg.
There are no clinically significant drug interactions between omega-3 supplements, magnesium bisglycinate, and rosuvastatin that would prevent you from taking them together at night. This combination is safe and commonly used in clinical practice.
Key Considerations for Timing and Administration
Rosuvastatin and Magnesium Interaction
The primary concern involves magnesium-containing antacids (specifically aluminum and magnesium hydroxide combinations), not magnesium bisglycinate supplements. The FDA label for rosuvastatin specifically warns about aluminum and magnesium hydroxide antacids, which can reduce rosuvastatin absorption by approximately 50% when taken simultaneously 1, 2.
However, magnesium bisglycinate is fundamentally different from magnesium hydroxide antacids:
- Magnesium bisglycinate is a chelated form used as a supplement, not an antacid
- It does not have the same alkaline buffering properties as magnesium hydroxide
- Recent clinical evidence shows that even magnesium oxide (which is more alkaline than bisglycinate) does not significantly impact rosuvastatin's LDL-lowering efficacy when taken together 3
Omega-3 and Rosuvastatin Combination
Omega-3 fatty acids can be safely combined with rosuvastatin without pharmacokinetic interactions 4. Studies demonstrate:
- No significant effect on rosuvastatin blood levels when co-administered with omega-3 (geometric mean ratio 86-91% for key parameters) 4
- Enhanced lipid-lowering effects: the combination produces greater reductions in triglycerides (-26.3% vs -11.4%) and non-HDL cholesterol compared to rosuvastatin alone 5
- Improved cardiovascular outcomes including reduced myocardial infarction, MACE, and unstable angina 6
The 2025 AACE guidelines conditionally recommend EPA (a type of omega-3) in addition to statins for patients with hypertriglyceridemia and cardiovascular disease or increased ASCVD risk 7.
Practical Recommendations
For optimal absorption and convenience:
- Take all three supplements together at night if desired
- If you want to be maximally cautious (though likely unnecessary with bisglycinate), you could take rosuvastatin first, then wait 2 hours before taking magnesium bisglycinate
- Omega-3 can be taken at any time with or without the other medications 4
Important caveats:
- If you're taking magnesium hydroxide or aluminum hydroxide antacids (like Maalox or Mylanta), take rosuvastatin at least 2 hours before the antacid 1
- Monitor for muscle pain, tenderness, or weakness—a rare but serious side effect of statins 1
- High-dose omega-3 (>3 grams daily) may slightly increase bleeding risk and atrial fibrillation risk 7
The combination of omega-3, magnesium bisglycinate, and rosuvastatin taken together at night is both safe and potentially beneficial for cardiovascular health.