KRKA Duovit Red Tablet
Brand: KRKA · Form: LIQUID, SUPPLEMENT FORM [E0165] On Market
Our assessment
Our assessment: Calcium is a critical mineral for bone health, but you need to be careful with dosing. The evidence shows that calcium supports bone density and neuromuscular function [NIH ODS]. However, high intakes carry real risks, so you should not exceed recommended amounts without medical supervision.
How it works
Think of calcium as a structural builder for your bones and a signal regulator for your nerves and muscles. It supports bone mineralization and helps with muscle relaxation and nerve signaling [NIH ODS]. Your body relies on a steady supply, but more is not always better.
Safety profile
The FDA has received 592,059 total adverse event reports for this product category [FDA data]. Specific risks from high calcium intake include poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Some research also suggests high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Our recommendation: Do not take this supplement without first reviewing your total calcium intake from food. Because high levels in the blood and urine can cause serious side effects, you should only use calcium supplements if advised by your doctor [NIH ODS]. If you take any prescription medications, check for interactions before starting [NIH ODS]. Data not available on the exact calcium dose per tablet from the product label provided.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | KRKA |
|---|---|
| Serving Size | |
| Contents | 40.0 Drop(s) |
| Market Status | On Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide