GasX Phone Numbers and Emails

Toll-Free Number:

  • (800) 245-1040

GasX Email:

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Contact Information

GasX Website:

GasX Help Center:

Corporate Office Address:

GSK Consumer Healthcare
184 Liberty Corner Road
Warren, New Jersey 07059
United States

Other Info (opening hours):


Monday through Friday, 9:00AM - 4:30PM Eastern Time

More contact details

Summary of GasX Customer Service Calls

00:00 AVG CALL

Top Reasons of Customers Calls

Consumers Call the Most From

Why Do People Call GasX?

Shipping and Delivery Question:

  • “Dosage on package is confusing to me”
  • “Purchased a package of Gas X 18 chewable tablets and there was only 9 in package”



GasX is a kind of medication which is intended to provide fast, effective relief of pressure and bloating that antacids can't provide. It is specially formulated with 100 simethicone. Being an antigas medicine, it is recommended by doctors mostly for gas pressure, bloating, and discomfort. Gas-X contains Simethicone which is the #1 doctor recommended ingredient to treat a gas problem. The product is available without a prescription. The main ingredient, Simethicone, helps break up gas bubbles in the gut. Inactive Ingredients of the medicine are Calcium Carbonate, Dextrose, Flavors, and Maltodextrin. Gas-X comes in three convenient forms for you to take: soft gel, chewable and thin strips form. The manufacture and provider of GasX is located in Parsippany, NJ.

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