Klor-con Mpotassium
According to the FDA label: BECAUSE OF REPORTS OF INTESTINAL AND GASTRIC ULCERATION AND BLEEDING WITH CONTROLLED-RELEASE POTASSIUM CHLORIDE PREPARATIONS, THESE DRUGS SHOULD BE RESERVED FOR THOSE PATIENTS WHO CANNOT TOLERATE OR REFUSE TO TAKE LIQUID OR EFFERVESCENT POTASSIUM PREPARATIONS OR FOR PATIENTS IN WHOM THERE IS A PROBLEM OF COMPLIANCE WITH THESE PREPARATIONS.
93,656 adverse event reports submitted to the FDA (1999–2026)
Top Reported Adverse Events
The most frequently reported events in association with Klor-con M in the FAERS database. These are events reported by patients taking this medication, not necessarily caused by it. A single report may include multiple events.
Show these terms with plain-language definitions
Tap any term below for a plain-language definition.
Diarrhoea 6,860 reports
Loose or watery bowel movements, often frequent. Also spelled diarrhea in American English.
Full definition in the glossary → See all drugs reporting this event →Dyspnoea 6,695 reports
Shortness of breath or difficulty breathing. Also spelled dyspnea in American English.
Full definition in the glossary → See all drugs reporting this event →Nausea 6,554 reports
The feeling of sickness in your stomach that often comes before vomiting.
Full definition in the glossary → See all drugs reporting this event →Fatigue 6,446 reports
Extreme tiredness or lack of energy that does not improve with rest.
Full definition in the glossary → See all drugs reporting this event →Death 4,693 reports
A report that the person died. A death appearing in reports for a drug does not mean the drug caused it. Reports record that a death occurred while the medication was being used, which can happen for many unrelated reasons.
Full definition in the glossary →Pneumonia 4,551 reports
An infection that inflames the air sacs in the lungs, which can cause cough, fever, and difficulty breathing.
Full definition in the glossary →Asthenia 4,221 reports
Physical weakness or lack of strength.
Full definition in the glossary →Vomiting 4,137 reports
Throwing up the contents of the stomach.
Full definition in the glossary → See all drugs reporting this event →Headache 4,123 reports
Pain in the head or upper neck.
Full definition in the glossary → See all drugs reporting this event →Off Label Use 4,077 reports
Using a medication for a condition or in a way that the FDA has not officially approved. This is common and often legal, and a report of it does not mean something went wrong. Doctors sometimes prescribe drugs off label based on their judgment.
Full definition in the glossary →Dizziness 3,995 reports
A feeling of being lightheaded, unsteady, or like the room is spinning.
Full definition in the glossary → See all drugs reporting this event →Pain 3,903 reports
A general report of physical discomfort, used when no more specific location is given.
Full definition in the glossary →Fall 3,687 reports
A report that the person fell down. Falls are tracked because they can signal issues like dizziness, weakness, or balance problems.
Full definition in the glossary →Drug Ineffective 3,637 reports
A report that the medication did not work as expected for the person taking it. This is a reporting category, not a sign the drug is defective. It simply means someone felt it was not helping their condition.
Full definition in the glossary →Anaemia 3,163 reports
A condition where there are too few healthy red blood cells to carry enough oxygen, often causing tiredness and paleness. Also spelled anemia in American English.
Full definition in the glossary → See all drugs reporting this event →
Ranked by frequency of reports, not severity. The most-reported event is not necessarily the most dangerous or the most common in patients taking this drug.
Who Is Reporting
Demographics of patients in FAERS reports that included this information. Not all reports include patient demographics.
By Sex
View reporter sex data as a table
| Sex | Reports |
|---|---|
| Female | 55,067 |
| Male | 33,171 |
| Unknown | 77 |
By Age Group
View age group data as a table
| Age group | Reports |
|---|---|
| 0-17 | 1,188 |
| 18-34 | 2,231 |
| 35-49 | 5,729 |
| 50-64 | 17,588 |
| 65-74 | 18,794 |
| 75+ | 18,743 |
This shows who filed reports, reflecting who takes this drug and who tends to report, not who is at greatest risk.
Reported Outcomes
Outcomes recorded in FAERS reports that included Klor-con M. A single report may involve multiple reactions, each with a different outcome. These categories are defined by FDA reporting guidelines, not by PillSignal.
View outcome data as a table
| Outcome | Reports |
|---|---|
| Hospitalization | 42,850 |
| Other Serious | 38,689 |
| Non-Serious | 23,765 |
| Death | 13,693 |
| Life-Threatening | 5,694 |
| Disability | 2,148 |
Serious outcomes are far more likely to be reported than mild ones, so this overstates how often outcomes are serious. A recorded death does not mean the drug caused it.
Report Volume Over Time
Number of FAERS reports received per quarter for Klor-con M. Changes in volume may reflect shifts in prescribing rates, media attention, or reporting behavior, not changes in the medication's safety profile.
View report trend as a table
| Year | Reports |
|---|---|
| 1999 | 4 |
| 2003 | 2 |
| 2004 | 902 |
| 2005 | 1,826 |
| 2006 | 1,352 |
| 2007 | 1,692 |
| 2008 | 2,444 |
| 2009 | 2,691 |
| 2010 | 2,196 |
| 2011 | 2,628 |
| 2012 | 3,629 |
| 2013 | 2,185 |
| 2014 | 2,609 |
| 2015 | 4,227 |
| 2016 | 5,121 |
| 2017 | 5,171 |
| 2018 | 6,013 |
| 2019 | 5,920 |
| 2020 | 5,841 |
| 2021 | 6,093 |
| 2022 | 6,868 |
| 2023 | 6,959 |
| 2024 | 7,811 |
| 2025 | 7,822 |
| 2026 (partial) | 1,650 |
The steep increase around 2004 reflects the FDA's move to electronic submission, not a change in this drug's safety. Trends track reporting volume, not risk.
Medications commonly reported with Klor-con M
In FDA adverse event reports that mention Klor-con M, these medications appeared most often in the same report.
- Furosemide (40,134 reports)
- Aspirin (20,125 reports)
- Acetaminophen (17,052 reports)
- Ergocalciferol (16,653 reports)
- Omeprazole (16,393 reports)
This reflects co-occurrence in submitted reports, not evidence of drug interaction or combined risk. People often report several medications taken for the same condition or for unrelated reasons. Talk to a doctor or pharmacist about your specific medications.
Related Drugs
Other medications with similar adverse event profiles in FDA FAERS reports.
Data Source
This data is sourced from the FDA's Adverse Event Monitoring System (AEMS), formerly FAERS, via the OpenFDA API. PillSignal is not affiliated with the FDA.
View this data on the FDA website →Data last updated: June 2026