Sodium bisulfate is a dry acid that may be harmful if swallowed in large amounts. This article discusses poisoning from swallowing sodium bisulfate.

This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222.

Sodium bisulfate

• Household cleaners
• Metal finishing
• Swimming pool pH additives

Note: This list may not be all inclusive.

Symptoms from swallowing more than a tablespoon of this acid may include:

• Burning pain in the mouth
• Diarrhea
• Vomiting
• Severe low blood pressure

Seek immediate medical help. DO NOT make a person throw up unless told to do so by Poison Control or a health care professional.

If the chemical is swallowed, immediately give the person water or milk, unless instructed otherwise by a health care provider. DO NOT give water or milk if the patient is having symptoms (such as vomiting, convulsions, or a decreased level of alertness) that make it hard to swallow.

If the chemical is on the skin or in the eyes, flush with lots of water for at least 15 minutes.

If the person breathed in the poison, immediately move him or her to fresh air.

Determine the following information:

• Patient's age, weight, and condition
• Name of the product (ingredients and strengths, if known)
• Time it was swallowed
• Amount swallowed

The National Poison Control Center (1-800-222-1222) can be called from anywhere in the United States. This national hotline number will let you talk to experts in poisoning. They will give you further instructions.

This is a free and confidential service. All local poison control centers in the United States use this national number. You should call if you have any questions about poisoning or poison prevention. It does NOT need to be an emergency. You can call for any reason, 24 hours a day, 7 days a week.

See: Poison control center - emergency number

The health care provider will measure and monitor the patient's vital signs, including temperature, pulse, breathing rate, and blood pressure. Symptoms will be treated as appropriate. The patient may receive:

• Activated charcoal
• Methods to water down (dilute) the acid

Damage to the esophagus may occur as late as 2 to 3 weeks after swallowing the poison. Death may occur up to 1 month after swallowing the poison. Those who recover may have continued stomach or esophagus problems.