What the label lists and what reports show
Sodium phosphate dibasic and sodium phosphate monobasic side effects
Sodium phosphate dibasic and sodium phosphate monobasic's FDA label lists its adverse reactions in its own words. FAERS holds 211 reports naming it through July 30, 2026; the reaction reported most often, leaving out the conditions it is used for, product-use terms and outcomes, is asthenia (19 reports).
- Generic listed
Check it at the source: the sodium phosphate dibasic and sodium phosphate monobasic FDA label on DailyMed (effective May 11, 2026, Hospira, Inc.); the FDA FAERS public dashboard.
What does the label list?
From the label: adverse reactionsAdverse reactions involve the possibility of phosphorus intoxication. Phosphorus intoxication results in a reduction of serum calcium and the symptoms are those of hypocalcemic tetany. See WARNINGS .
Table 1: Common Adverse Reactions 1 in Patients Undergoing Colonoscopy in Study 1
This table is printed in the Monobasic Sodium Phosphate and Dibasic Sodium Phosphate label published by Lupin Pharmaceuticals,Inc. of January 30, 2024; the label quoted above does not print one.
| Reaction | Monobasic Sodium Phosphate and Dibasic Sodium Phosphate Tablets 32 tabs (48 g) N=272 | Monobasic Sodium Phosphate and Dibasic Sodium Phosphate Tablets 40 tabs (60 g) N=265 | Sodium Phosphate2 40 tabs (60 g) N=268 |
|---|---|---|---|
| Bloating | 31% | 39% | 41% |
| Nausea | 26% | 37% | 30% |
| Abdominal Pain | 23% | 24% | 25% |
| Vomiting | 4% | 10% | 9% |
Rows and numbers as the label prints them, under its own column headings (the first rows of a longer table where it runs on). A reaction in a trial table is not necessarily caused by the medicine, and trials differ from everyday use.
Source: FDA drug label, Hospira, Inc., effective May 11, 2026 (SPL set 6f044d16-295e-43ff-72a3-b045c387bc5c), via openFDA; the full label on DailyMed
What do FAERS reports show?
211 reports list sodium phosphate dibasic and sodium phosphate monobasic among the medicines taken, each a report of something that happened, not proof the medicine caused it; 51 are coded as a death and 119 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is. Of the 24 reactions below, 3 are named by the same term (in US spelling) in the label's adverse reactions, warnings or patient leaflet; a reaction the label does not name may still be there under another word, and a report does not show that the medicine caused it.
The 25 most reported reactions
Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026; reactions as MedDRA preferred terms
What next?
- Sodium phosphate dibasic and sodium phosphate monobasic: the full record
- label, generics, price, shortages, recalls
- Report a side effect to the FDA
- MedWatch
- Side effects hub
- the most reported medicines and reactions