Product Label

Douglas Laboratories Melatonin 3 mg Sublingual Tablets

Brand: Douglas Laboratories · Form: TABLET [E0155] On Market

Our assessment

The evidence shows that while calcium is essential for bone health, you should approach high-dose supplementation with caution. The data indicates a link between very high intakes and potential risks for heart disease and prostate cancer [NIH ODS]. For the specific product you asked about — Douglas Laboratories Melatonin 3 mg — data on this formulation is limited, and we must rely on general ingredient data.

How it works

Think of calcium as a building block for your skeleton. It supports bone mineralization and density, and it also plays a key role in neuromuscular relaxation and nerve signaling [NIH ODS]. This means it helps your muscles relax after contracting and supports the normal transmission of signals throughout your nervous system.

Safety profile

FDA received a total of 592,059 adverse event reports across all supplements, though specific data for this product is not available. For calcium specifically, high levels in the blood and urine can cause 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]. Additionally, calcium supplements may reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

We recommend you get your calcium primarily from food sources and only supplement if advised by your healthcare provider after a blood test. If you take calcium supplements, take them separately from other medications by at least two hours to avoid absorption issues [NIH ODS]. For the Douglas Laboratories Melatonin 3 mg product specifically, data on its safety and efficacy is not available, so consult your pharmacist or doctor before use.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandDouglas Laboratories
Serving Size
Contents120.0 Tablet(s)
Market StatusOn 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

Original Label

View Full DSLD Label (PDF)

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