Rexall Time Released Melatonin 5 mg
Brand: Rexall · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that while melatonin is a popular supplement for sleep, the specific formulation of Rexall Time Released Melatonin 5 mg has limited direct data. Our assessment focuses on the active ingredient, melatonin, and the specific calcium ingredients listed on the label. For sleep support, 5 mg is a common dose, but starting lower is often recommended. Data not available for the specific efficacy of this time-release product.
How it works
Melatonin is a master regulator of your sleep-wake cycle. It signals to your body that it is time to sleep, helping to reduce the time it takes to fall asleep. The time-release formulation is designed to mimic the body's natural melatonin production throughout the night, which may help with sleep maintenance. For the calcium component, it supports neuromuscular relaxation and nerve signaling, which can be important for overall sleep quality [NIH ODS].
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplements, though specific reports for this product are not isolated. For the calcium in this formula, high levels can cause constipation, nausea, weight loss, extreme tiredness, and abnormal heart rhythms [NIH ODS]. Data not available for specific melatonin side effects from this product. Always consult your doctor before starting a new supplement.
Our recommendation
We recommend starting with a lower dose of melatonin (1-3 mg) before trying 5 mg. If you choose this product, take it 30-60 minutes before bed. Be aware that calcium can reduce the absorption of certain medications like thyroid medication and some antibiotics, so take this supplement at least 2 hours apart from those [NIH ODS]. If you experience morning grogginess, consider a lower dose or a different formulation.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Rexall |
|---|---|
| Serving Size | |
| Contents | 90.0 Tablet(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