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Medication Comparison

Compare any two to four medications side by side — what is actually in them, how strong they are, how they are taken and who makes them. Built on the 112,035 products in the US FDA National Drug Code directory.

  • 56,435Prescription
  • 55,600Over the counter
  • 3,850Active ingredients
  • 36,475We stock the ingredient

596 medications

Tick up to 4 to compare.

BERKLEY JENSEN ULTRA STRENGTH

ANTACID CALCIUM CARBONATE

Strength
1000 mg/1
Form
Tablet, Chewable
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

BJWC

$6.30 We supply Generic Calcium Carbonate 500 mg (different strength or form) View product

Best Choice Assorted Fruit

Calcium Carbonate

Strength
500 mg/1
Form
Tablet, Chewable
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

BEST CHOICE (VALU MERCHANDISERS COMPANY)

$6.30 We supply Generic Calcium Carbonate 500 mg View product

Best Choice Extra Strength

Smooth Antacid Tablets

Strength
750 mg/1
Form
Tablet, Chewable
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

BEST CHOICE (VALU MERCHANDISERS COMPANY)

$6.30 We supply Generic Calcium Carbonate 500 mg (different strength or form) View product

Best Choice Ultra Strength

Antacid Tablets (Calcium Carbonate)

Strength
1000 mg/1
Form
Tablet, Chewable
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

BEST CHOICE (VALU MERCHANDISERS COMPANY)

$6.30 We supply Generic Calcium Carbonate 500 mg (different strength or form) View product

BM Calcium carbonate (Calc Carb)

Calcium Carbonate

Strength
6 [hp_X]/60mg
Form
Tablet
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

BM Private Limited

$6.30 We supply Generic Calcium Carbonate 500 mg (different strength or form) View product

Calcium Antacid

Calcium Carbonate

Strength
500 mg/1
Form
Tablet, Chewable
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

Safecor Health, LLC

$6.30 We supply Generic Calcium Carbonate 500 mg View product

Calcium Antacid

Calcium Carbonate

Strength
500 mg/1
Form
Tablet, Chewable
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

Allegiant Health

$6.30 We supply Generic Calcium Carbonate 500 mg View product

Calcium Antacid

Calcium Carbonate

Strength
750 mg/1
Form
Tablet, Chewable
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

Allegiant Health

$6.30 We supply Generic Calcium Carbonate 500 mg (different strength or form) View product

Calcium Carbonate

Strength
1250 mg/5mL
Form
Suspension
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

PAI Holdings, LLC dba PAI Pharma

$6.30 We supply Generic Calcium Carbonate 500 mg (different strength or form) View product

Calcium Carbonate

Strength
1250 mg/5mL
Form
Suspension
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

PAI Holdings, LLC dba PAI Pharma

$6.30 We supply Generic Calcium Carbonate 500 mg (different strength or form) View product

Calcium Carbonate

Strength
1 g/g
Form
Powder
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

Humco Holding Group, Inc.

$6.30 We supply Generic Calcium Carbonate 500 mg (different strength or form) View product

Calcium Carbonate

Strength
1250 mg/5mL
Form
Suspension
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

Atlantic Biologicals Corps

$6.30 We supply Generic Calcium Carbonate 500 mg (different strength or form) View product

CALCIUM CARBONATE

Strength
500 mg/1
Form
Tablet, Chewable
Class
Blood Coagulation Factor; Phosphate Bin…
OTC

Blessings International

$6.30 We supply Generic Calcium Carbonate 500 mg View product

How to read a comparison

Same ingredient, different name

Most medications exist under several names: one brand name, one generic name, and a different brand again in another country. What matters is the active ingredient and its strength — two products with the same ingredient at the same strength are, for most purposes, the same medicine.

Strength is not a measure of quality

A 10 mg tablet is not "better" than a 5 mg one. Strength is matched to the person and the condition, and a higher one is not an upgrade. Only your prescriber can say which is right for you.

Dosage form changes more than convenience

The same ingredient as a tablet, a capsule or a liquid can be absorbed at different speeds. Modified-release forms in particular are not interchangeable with ordinary ones, even at an identical stated strength.

Approval route

NDA is an original brand-name approval. ANDA is a generic, which had to prove it delivers the ingredient to the bloodstream at a rate and extent statistically equivalent to the original. OTC monograph covers products sold without a prescription under standing FDA rules.

Controlled substances

A DEA schedule badge means the medication is federally controlled because of its potential for dependence or misuse. Schedule II is the most tightly restricted of those available by prescription. These carry extra rules on prescribing, refills and supply.

What "we supply this ingredient" means

Where we stock a product containing the same active ingredient, the card says so and links to it. That is an ingredient match — the strength, form or manufacturer of what we sell may differ from the FDA record shown, so check the product page before ordering.

This tool is for information only and is not medical advice. It cannot tell you whether a medication is safe or suitable for you, and nothing here replaces a conversation with a prescriber or pharmacist. Source data is published by the U.S. Food & Drug Administration via openFDA and is reproduced without their endorsement; the FDA states it should not be relied upon for decisions about medical care.