Antacid (heartburn) · ATC A02AC01

Calcium carbonate (antacid)

Tums in the US

The international (INN) name. Pharmacists everywhere recognize it, even when the local brand differs (e.g. Tums, Rennie, Rocal).

15 destinations

DestinationAsk forStatus

United StatesAsk forTumsOTC

United KingdomAsk forRennieOTC

Rennie also contains magnesium carbonate.

CanadaAsk forTumsOTC

GermanyAsk forRennieGeneric name here: CalciumcarbonatNo Rx: Ask Pharmacist

Rennie also contains magnesium carbonate.

FranceAsk forRennieGeneric name here: Carbonate de calciumOTC

Rennie also contains magnesium carbonate.

MexicoAsk forTumsGeneric name here: Carbonato de calcioOTC

EthiopiaAsk forRocalOTC

JapanAsk forOhta Isan (太田胃散)Generic name here: 炭酸カルシウム (tansan karushiumu)OTC

A mixed antacid powder that includes calcium carbonate among other ingredients.

VietnamAsk forGaviscon (with alginate)OTC

SingaporeAsk forRennieOTC

Rennie also contains magnesium carbonate.

MoroccoAsk forNot sold hereUnavailable

Bring what you need from home.

PortugalAsk forRennieOTC

Rennie Digestif combines calcium and magnesium carbonate.

TürkiyeAsk forRennieNo Rx: Ask Pharmacist

ItalyAsk forSold generic as "Calcio carbonato"OTC

Sold mainly as a calcium supplement. Rennie is not in the Italian register.

SpainAsk forRennieGeneric name here: Calcio carbonatoNo Rx: Ask Pharmacist