Medi-First® Antacid

Compare active ingredient to TUMS®



Product Information

Aluminum-free calcium supplement for heartburn, sour stomach, acid indigestion and upset stomach. Mint flavor.

  • Great tasting, chewable tablets
  • Unit dose, tamper-evident packets
  • Spanish labeling where possible

Each tablet contains:
Calcium Carbonate 420 mg


Available in the following package sizes:
500 (250 x 2's) - Item 80213
250 (125 x 2's) - Item 80248
100 (50 x 2's) - Item 80233



Drug Facts Information


Active ingredient (in each tablet): Calcium Carbonate 420 mg
Purpose: Antacid

Inactive ingredients*
aspartame*, croscarmellose sodium*, gum acacia*, magnesium stearate, maltodextrin, mineral oil*, mint flavor, sorbitol*, sucrose*

*may contain


For the relief of the following symptoms
acid indigestion
sour stomach
upset stomach associated with these symptoms


Do not use
the maximum dosage of this product for more than 2 weeks, except under the advice and supervision of a physician, or take more than 19 tablets in a 24 hour period.

Ask a doctor or pharmacist before use if you are
presently taking a prescription drug. Antacids may interact with certain prescription drugs.

Stop use and ask a doctor if
symptoms last more than 2 weeks

If pregnant or breastfeeding, ask a health professional before use.
Keep out of reach of children.


■ do not use more than directed
■ chew or crush tablets completely before swallowing
■ do not swallow tablets whole

Adults and children: (12 years and older) Chew 2 tablets every 2 or 3 hours as symptoms occur or as directed by a physician. Do not exceed 19 tablets in 24 hours.

Children under 12 years: Do not give to children under 12 years of age.

Other Information

Phenylketonurics: may contain phenylalanine 1.5 mg per tablet
each tablet contains 168 mg of elemental calcium
store at room temperature 59º-86ºF (15º-30ºC) in a dry place
tamper-evident sealed packets
do not use any opened or torn packets


Questions? Please contact us at 1-800-634-7680

Medique Products takes great care to ensure that the product you take is completely safe. This website contains current product information as of 7/31/20 and may differ from the information on the product packaging you may have.


TUMS® is a registered trademark of GlaxoSmithKline.