Questions answered by experts

For example, the longer the smoke is kept in the mouth the more acetaldehyde is dissolved into saliva. Strong suction smoking habit increases the heat of combustion and thus likely also acetaldehyde formation is higher. Salivary secretion is affected by many factors like thirst, drugs, alcohol, etc.
But in spite of all this Acetium Lozenge appears to eliminate more than 90% of the dissolved acetaldehyde in the saliva. The result is a superior compared to any drug or food supplement (eg, blood pressure, cholesterol, blood sugar, etc.).

You do not have to return them to a pharmacy, but it is recommended.

Acetium Capsule will remain effective as long as written in the package and when stored in accordance with the instructions provided on the package.

No. Calvados, sherry, port wine and ciders, for example, are among the most dangerous ones.

Yes, but they do not neutralise the effects of acetaldehyde in the same way. Acetium releases L-cysteine locally in the stomach at a sustained rate, while the other products release cysteine in the small intestine, from where it is absorbed into the circulation.

Cysteine is a natural amino acid. The L-cysteine in Acetium capsules is plant-derived. The production method is similar to that of penicillin.

Food contains L-cysteine, but the effect is not the same. The L-cysteine we get from food is only released in the small intestine, and from there it is quickly absorbed into the circulation. Acetium releases L-cysteine locally in the stomach at a sustained rate, and it binds to acetaldehyde there.

Because of the nature of the product, pharmacies are the natural marketing channel for Acetium.

Yes. No substance, not even Acetium, can provide full protection.

Yes. Acetium completely eliminates the acetaldehyde formed during smoking and swallowed with saliva.

The purpose of Acetium is not to make the consumption of alcohol safe. For instance, it does not prevent liver cirrhosis, liver cancer or damage to the central nervous system. Long-term research data will show how efficiently gastric cancer can be prevented. In the light of the present knowledge, Acetium significantly reduces the amount of carcinogenic acetaldehyde in an anacidic stomach.

The studies on acetaldehyde are scientifically reliable, published in respected journals and peer-reviewed, but not all the authorities have had an opportunity to familiarise themselves with the issue. The International Agency for Research on Cancer (IARC), which is part of the WHO, has examined the studies and decided to classify acetaldehyde as a Group I human carcinogen.

Yes. A clinical test showed that, on average, Acetium binds 63% of the acetaldehyde produced from alcohol in patients with low stomach acid.

No, and it cannot be tested on animals, because laboratory animals have completely different microbial flora in their stomach than humans. On the other hand, there is no need for safety testing, because the amino acid is perfectly safe and we consume small amounts of it all the time in our food.

Acetium is not a medicine or product for the treatment of the stomach. Its purpose is to suppress the carcinogenic effects of acetaldehyde generated in a low-acid stomach (also called anacidic stomach). There is no medication for the treatment of low stomach acid. Acetium is the first product in the world that can be recommended to patients with this diagnosis.

Taking Acetium is not harmful, but the cause of the discomfort should be examined. The GastroPanel blood test is the easiest way to determine the nature of the problem. Ask your doctor for more information or visit

Acetium should not be used by patients with severe kidney failure or cystinuria.

Acetium has not yet been tested in children. Therefore it is not recommended for them.

Acetium has not yet been tested in pregnant or breast-feeding women. Therefore it is not recommended for them.

There is no dietary treatment for this problem.

Patients suffering from a chronic Helicobacter pylori infection or atrophic gastritis will have to take Acetium for the rest of their lives. Patients on anti-acid medication can stop taking Acetium when they stop the medication.

In Finland, in a Finnish pharmaceutical plant.

At the moment only in Finland and Germany.

Yes, for the time being.

No. L-cysteine is a natural amino acid. The other ingredients in Acetium are also commonly used and safe.

No. The L-cysteine contained in Acetium is a natural amino acid.

Acetaldehyde is produced in a low-acid stomach from food carbohydrates (sugars) or alcohol. Therefore Acetium should be taken when you have food or drink in your stomach that can generate acetaldehyde.

From 300 to 800 mg, depending on the dosage. The recommended maximum dose is 1 g of L-cysteine per day.

One or two capsules with meals. Two capsules are recommended if you are drinking alcohol.

L-cysteine is a natural amino acid. Unlike medicines, it is not a chemical compound foreign to the human body. Acetium is not a medicine, because it reacts locally in the stomach and is not absorbed into the circulation like medicines.

Acetium is not a medicine; it is a non-prescription, over-the-counter product. The National Agency for Medicines in Finland has classified Acetium as a medical device.

If you are on  anti-acid medication or you are suffering from a Helicobacter pylori infection or atrophic gastritis, you need Acetium. If you have abdominal discomfort but you do not know what is causing it, you should be tested using a method such as the GastroPanel blood test to find out. Ask your doctor for more information about the test, or visit In addition, the Acetaldehyde test on this website can help you to find out whether you should start taking Acetium.

The effect begins immediately.

According to a clinical study, the acetaldehyde content of gastric juice decreases by 63% on average, which is enough to reduce the content below the harmful level.

Acetium contains L-cysteine, which binds to acetaldehyde and forms a harmless compound; methylthiazolidine carboxylic acid (MTCA).This reduces the amount of free acetaldehyde in the stomach to below the harmful level.

Yes. As the result of microbial activity, it accumulates in everyone’s mouth and intestines. However, it is not generated in the stomach, unless the person has low stomach acid. In such cases, oral microbes can grow and multiply in the stomach, producing large amounts of acetaldehyde. In addition, Helicobacter pylori can generate high acetaldehyde levels in the stomach.

The most harmful ones are alcohol, tobacco and particularly foods produced by a fermentation process. In addition, acetaldehyde is used as a flavouring. Currently it is not possible to avoid exposure, because acetaldehyde content information is not included on food package labels.

It has been estimated that the daily acetaldehyde intake by a person of average weight (70kg) should not exceed 0.4 milligrams. This means that the acetaldehyde content of a 100 ml serving of any alcoholic beverage or food should not exceed 50 µmol/l . This “safety limit” is based on the results of mutagenicity studies on acetaldehyde. Similar or higher contents of acetaldehyde produced by microbes can be found in the human intestines following the consumption of alcohol. The acetaldehyde levels contained in foods vary considerably, but in the worst cases the content is many thousands of times higher than the safety limit. The most dangerous products in this respect are alcoholic beverages (particularly calvados, sherry and ciders), fermented products and some fruits and fruit-based products.

Yes, but people who are taking anti-acid medication or suffering from atrophic gastritis or Helicobacter pylori infection are exposed to acetaldehyde more than others.

WHO has classified acetaldehyde as a Group I human carcinogen. Acetaldehyde belongs to the same risk class as, for example, asbestos and tobacco.

Acetaldehyde is the most important product of the body’s metabolism of alcohol. It is common in many types of food and drink. Acetaldehyde is generated in food during the manufacturing process, or it may be added to food because of its apple-like aroma. Several hundred thousand tons of acetaldehyde are manufactured each year for industrial use. Some natural foods (such as fruit) contain acetaldehyde.