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Phosphoric Side Effects

The most commonly reported side effects of phosphoric include constipation, pain, and balance disorder, based on 899 FDA adverse event reports from 2004 to 2025.

Phosphoric side effects

Percentages show how often each reaction appears relative to total reports for phosphoric.

1
Constipation26.0%234
2
Pain20.1%181
3
Balance Disorder19.8%178
4
Mobility Decreased18.1%163
5
Orthostatic Hypotension17.9%161
6
Cognitive Disorder17.1%154
7
Fall17.0%153
8
Blood Calcium Decreased16.9%152
9
Creatinine Renal Clearance Decreased16.9%152
10
Depressed Level Of Consciousness16.7%150
11
Hypotension16.5%148
12
Sedation15.7%141
13
Sedation Complication15.6%140
14
Dyspnoea13.9%125
15
Toxicity To Various Agents13.8%124

These are voluntary reports and do not establish that phosphoric caused these reactions.

Report severity

84.8%Serious762 reports
55.7%Hospitalizations501 reports
13.8%Fatal124 reports

Seriousness is determined by the reporter, not by OpenClaim.

Phosphoric drug interactions

Other drugs that appear in adverse event reports alongside phosphoric. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Amlodipine21.8%196
2
Morphine-sulfate20.9%188
3
Tiotropium-bromide19.9%179
4
Lactulose19.8%178
5
Levothyroxine-sodium19.2%173
6
Furosemide18.7%168
7
Cyclobenzaprine-hydrochloride18.5%166
8
Carbamazepine18.4%165
9
Diltiazem18.2%164
10
Albuterol17.9%161
11
Nitroglycerin17.9%161
12
Acebutolol-hydrochloride17.9%161
13
Oxazepam17.9%161
14
Quinapril-hydrochloride17.8%160
15
Amitriptyline-hydrochloride17.7%159

Taken alongside

1
Glycerin53.2%478
2
Potassium-chloride50.1%450
3
Sodium-chloride47.7%429
4
Amino-acids45.7%411
5
Calcium-acetate45.7%411
6
Magnesium-acetate45.7%411
7
Sodium-acetate45.7%411
8
Acetaminophen37.8%340
9
Aspirin23.0%207
10
Ascorbic-acid15.7%141
11
Ondansetron15.2%137
12
Omeprazole14.5%130
13
Albuterol13.9%125
14
Calcium13.5%121
15
Hydrocortisone10.7%96

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports phosphoric side effects

60.8% of phosphoric adverse event reports involve female patients and 29.4% involve male patients. The largest age group is elderly at 56%. These figures reflect who reports side effects, not underlying risk.

Sex

Female60.8%
Male29.4%
Unknown9.8%

Age group

< 20.8%
2–112.4%
12–171.5%
18–6439.2%
65+56.0%

What is phosphoric used for

Conditions and purposes for which patients were taking phosphoric when the adverse event was reported.

AnaemiaAntiallergic TherapyBlood DisorderBlood Phosphorus DecreasedBlood Sodium DecreasedBlood PhosphorusCardiovascular Event ProphylaxisCholestatic PruritusChronic Obstructive Pulmonary DiseaseCompleted SuicideConstipationConstipationCutaneous VasculitisDermatitisDermatitis Allergic

Showing 15 of 107 indications

Phosphoric brand names and reporting trend

Phosphoric is sold under the brand name Aminosyn 3.5% M.

Brand names

Aminosyn 3.5% M520

Quarterly reports (20042025)

20052010201520202025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking phosphoric with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.