Blackmores Bio Magnesium Tablets 100

Assists with the relief of muscular spasms and cramps, as well as the relief of pre-menstrual symptoms such as weight gain, breast tenderness and bloating.

$25.15 AUD

or 4 interest-free installments of $6.29 AUD by

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General Information: Blackmores Bio Magnesium conveniently supports normal muscle function and may help prevent muscle cramps and spasms when magnesium levels are low, in a high strength one-a-day dose.


  • May assist in the prevention of muscular cramps and spasms when magnesium levels are low
  • May relieve pre-menstrual symptoms
  • Magnesium is essential for normal muscle function

Warning: If symptoms persist, talk to your health professional Supplements may only be of assistance if dietary intake is inadequate Contains soya If you are pregnant or breastfeeding, talk to your health professional before use If you have any pre-existing conditions or are on any medications always talk to your health professional before use



Active Ingredients:

  • Magnesium oxide- heavy (magnesium 265.3 mg) 440 mg.
  • Magnesium phosphate pentahydrate(magnesium 36.2 mg)175 mg (Total magnesium 301.5 mg).
  • Calcium ascorbate dihydrate (vitamin C, ascorbic add 41.3 mg) 50 mg.
  • Pyridoxine hydrochloride (vitamin B6, pyridoxine 41.1 mg) 50 mg.
  • Colecalciferol (vitamin D 100 IU) 2.5 microgram.
  • Manganese amino acid chelate (manganese 4 mg) 40 mg.
  • Directions: Adults and children over 9 years: Take 1 tablet a day with a meal, or as professionally prescribed.


Flat Rate: $9.95 for all orders Australia-wide.

Free Shipping on all orders over $99 and under 5kg in weight

Click & Collect (WA): Shop online and collect your order from our pharmacies in North Perth, Claremont & Wembley

(2-3 business days)

Orders over 5kg: $9.95 + $1 per kg.

Transit Time: All orders are shipped via Australia Post’s Parcel Post service. Delivery typically takes up 5-7 days from lodgement with Australia Post.


All international orders are shipped via Australia Post International Standard

Proceed through the checkout for a shipping quote.

Michael’s Chemist is not liable for any costs incurred due to customs or delivery taxes

Transit Time: 3-10 working days, excluding customs.

Please read our full international shipping policy HERE

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