Magnesium Oral
Sources
Magnesium (Oral Supplement)
Summary
Patient is taking an oral magnesium supplement 400 mg three times daily (TID) = 1200 mg/day total, confirmed by clinic note dated 2026-05-06. This is the maximum recommended oral dose per Magnesium Glycinate Oral Dosing.
The supplement was first disclosed in clinic note 2026-04-20 but the dose was unknown at that time. The patient had run out of supply ~2026-04-06 (lapse of ~2 weeks prior to the Apr 20 note). By 2026-05-06 the supplement has been resumed and dose is now documented.
Specific formulation (magnesium oxide, glycinate, citrate, etc.) and prescriber remain unknown.
Dose History
| Date | Status | Dose | Source |
|---|---|---|---|
| Pre-2026-04-06 | Active (dose unknown) | Unknown | Inferred from Apr 20 note |
| ~2026-04-06 | Lapsed (supply ran out) | — | 2026-04-20 clinic note |
| By 2026-05-06 | Active — resumed | 400 mg TID (1200 mg/day) | 2026-05-06 clinic note |
Clinical Relevance
[!info] Dose now documented: 400 mg TID = maximum recommended oral dose
400 mg TID (1200 mg/day) is the ceiling dose per the magnesium-glycinate-oral-dosing reference. At this dose, Mg normalized from 1.2 mg/dL (Apr 20 nadir) to 1.6 mg/dL (May 4, first normal value). Supplementation is working.
Oral Mg lapsed ~2026-04-06. The next measured Mg (2026-04-20) was 1.2 mg/dL — a new low. After resumption at 400 mg TID, Mg recovered to 1.6 mg/dL (May 4) — first normal value since treatment began.
Clinical Context
| Event | Date | Mg (mg/dL) |
|---|---|---|
| First documented hypomagnesemia | 2026-03-02 | 1.4 (L) |
| Supplement lapse (~2 weeks) | ~2026-04-06 | — |
| Mg nadir (post-lapse) | 2026-04-20 | 1.2 (L) |
| Mg improving (supplement resumed, dose unknown) | 2026-04-27 | 1.4 (L) |
| Mg normalized (400 mg TID confirmed) | 2026-05-04 | 1.6 (N) |
- Underlying driver: Chemotherapy-related Mg wasting (Azacitidine + Venetoclax)
- Current status: Normalized on 400 mg TID. Continue and monitor. Dose is at the oral ceiling.
- Next step: If Mg falls below 1.6 again despite 400 mg TID, consider IV MgSO₄ supplementation (1–2 g q6–8h).
Related Pages
- Magnesium — longitudinal lab tracking (4 data points, now normalized to 1.6)
- Magnesium Glycinate Oral Dosing — prescribing reference; 400 mg TID is the documented ceiling dose
- Hyponatremia — concurrent electrolyte disturbance; Mg depletion worsens Na regulation (both now improving)
- Magnesium Diet Kerala Context — dietary augmentation options (adjunct to supplementation)