Compare Zegerid vs. Alka-Seltzer

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Zegerid
(omeprazole / sodium bicarbonate)

Alka-Seltzer Original
(aspirin / citric acid / sodium bicarbonate)

Relieves heartburn, ulcers, and acid tummy. Zegerid (Omeprazole / Sodium Bicarbonate) gives you long-lasting heartburn relief. Choose the cheapest proton pump inhibitor because they all work equally well for heartburn.Relieves heartburn, headache, and body pains. Alka-Seltzer Original (Aspirin / Citric Acid / Sodium Bicarbonate) gives quick relief for headache, body pains, and upset tummies, but might be hard to swallow if you don't like the taste or fizz.
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
5.24Zegerid
Reviews for Zegerid
72%
of people (All ages) say Zegerid is worth it
55%
say it works well
12%
say it's a big hassle
Have you used Zegerid (omeprazole / sodium bicarbonate)?
Worth itNot sureNot worth it
Reviews for Alka-Seltzer
81%
-9% worse vs. Zegerid
52%
+3% better vs. Zegerid
8%
-4% worse vs. Zegerid
1055 reviews
Have you used Alka-Seltzer Original (aspirin / citric acid / sodium bicarbonate)?
Worth itNot sureNot worth it
Side effects
ZegeridAlka-Seltzer

The Zegerid FDA package insert doesn’t have numbers about how common side effects are.

More about Zegerid side effects »

We haven’t found good data for Alka-Seltzer side effects.

FDA side effect reports for Alka-Seltzer »
How it works
ZegeridAlka-Seltzer
Zegerid (Omeprazole / Sodium Bicarbonate) is a type of antacid called a proton pump inhibitor. It blocks the release of acid in your stomach, which treats heartburn and helps ulcers heal.Alka-Seltzer Original (Aspirin / Citric Acid / Sodium Bicarbonate) is a combination medicine. Sodium bicarbonate is an antacid that relieves heartburn and acid tummy (indigestion). Aspirin is a pain reliever that treats headache and body pains.
Type of medication
ZegeridAlka-Seltzer
Prescription or OTCOver-the-counter
Available as
ZegeridAlka-Seltzer
  • Pill
  • Chewable tablet
  • Effervescent tablet
Used for
ZegeridAlka-Seltzer
Risk factors for serious side effects
ZegeridAlka-Seltzer
  • Helicobacter pylori infection
  • Autoimmune disease
  • Being hospitalized
  • Antibiotic use
  • Osteoporosis
Detailed Zegerid (omeprazole / sodium bicarbonate) risks & warnings »
  • Current kidney disease
  • Kidney dialysis
  • Age 65 or older
  • Congestive heart failure (CHF)
  • High blood pressure
Detailed Alka-Seltzer Original (aspirin / citric acid / sodium bicarbonate) risks & warnings »
Pregnancy

Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

The FDA hasn’t classified this medicine’s effects on unborn babies. Talk with your doctor about this medicine if you’re pregnant or planning on it.

Interactions
ZegeridAlka-Seltzer
  • Avoid drug interactions by telling your doctor all of the other medications or herbal supplements you take before starting Zegerid.
  • Can interact with other drugs so be sure your doctor knows all the medicine you're taking before starting Zegerid.
No interactions related info.
Food
ZegeridAlka-Seltzer
  • Take 1 hour before a meal.
  • Take it with food to lower the chance of an upset stomach.
Kidneys and liver
ZegeridAlka-Seltzer
No kidneys and liver related info.
  • If you have kidney or hyperparathyroid disease Alka-Seltzer Original (Aspirin / Citric Acid / Sodium Bicarbonate) can build up in your blood. This may can cause toxic levels of sodium in your body. This is more likely if you have severe kidney disease (defined as a kidney function blood test called GFR of less than 30ml/min). If you have severe kidney disease or are on kidney dialysis don't use Alka-Seltzer Original (Aspirin / Citric Acid / Sodium Bicarbonate); a different antacid would be better for you.
Upsides and benefits
ZegeridAlka-Seltzer
  • Most people can take Zegerid without any noticeable day-to-day side effects.
  • Zegerid lasts longer than other types of antacids (like Zantac, Pepcid, or Tums), and you only need to take it once or twice a day.
  • You can take it in combination with a quick-acting antacid (like Maalox or Tums) if you need relief right away.
  • In studies it was better than a placebo (sugar pill) and as good as other proton pump inhibitors at treating heartburn.
  • Available as both a generic and over-the-counter option, so it's pretty affordable.
  • Works great if you have an upset stomach and a headache or body pain at the same time.
  • Works really fast.
  • Available over the counter without a prescription.
  • Cheap.
Downsides and risks
ZegeridAlka-Seltzer
  • Doesn't start working as fast as some other antacids like Tums, Rolaids, or Maalox.
  • Like with other proton pump inhibitors, long-term use can cause weak or broken bones.
  • Can cause low levels of magnesium in the blood. You might need to take a magnesium supplement if you use Zegerid long-term.
  • Although the generic is affordable, other medications might still be cheaper than Zegerid.
  • Can interact with other drugs so be sure your doctor knows all the medicine you're taking before starting Zegerid.
  • Doesn't last very long.
  • Other antacids like Zantac (H2 blockers) and omeprazole (proton pump inhibitors) can work better and last longer.
  • Because it has aspirin in it, it increases the risk of bleeding, especially if you take any other blood thinning medicine.
  • Can't be used by people with allergy to aspirin.
  • You may not like the taste or fizz.
Tips from our pharmacists for people taking the medication
ZegeridAlka-Seltzer
  • Take 1 hour before a meal.
  • Don't chew or crush capsules; swallow them whole.
  • Avoid drug interactions by telling your doctor all of the other medications or herbal supplements you take before starting Zegerid.
  • If you've been having heartburn for 3 months or more, talk to your doctor before taking Zegerid. Get a check-up to make sure you aren't having a more serious stomach problem.
  • Talk to your doctor if you're still having heartburn after two weeks of use. Don't keep taking Zegerid; get checked-out first.
  • Don't take Alka-Seltzer if you're allergic to aspirin.
  • Take it with food to lower the chance of an upset stomach.
  • This medicine isn't recommended for kids 12 and younger because it has aspirin in it.
  • Stop taking this right away and talk to your doctor if you have ringing in your ears, rash, trouble breathing, unusual bleeding, or nausea or vomiting that doesn't go away.
  • Having a dental or medical procedure? You may need to stop taking this before the big day. Ask your dentist or doctor.
  • Alka-Seltzer contains sodium. If you need to follow a low sodium diet a different medication would be better for you.
  • Not a good choice if you have stomach bleeding, bleeding problems, diabetes, or gout, or if you're taking medicines to thin your blood.
Learn more
More about ZegeridSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Zegerid (omeprazole / sodium bicarbonate)?
Worth itNot sureNot worth it
More about Alka-SeltzerSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Alka-Seltzer Original (aspirin / citric acid / sodium bicarbonate)?
Worth itNot sureNot worth it