Pet Medication 101: SimethiconeIt’s important to understand a medication’s uses and side effects before giving it to your pet. This medication info sheet is meant to give you a good understanding of what simethicone (Gas-X, Alka-Seltzer, etc.) is used for, how it works, and potential side effects in cats and dogs. Always consult a veterinarian before giving your pet any medication. Are you concerned about your pet?Book a video consultation with an experienced veterinarian within minutes.Professional vet advice onlineLow-cost video vet consultationsOpen 24 hours a day, 365 days a year Book Video Consultation 1. Drug Name:simethicone2. Brand Names:Gas-X, Alka-Seltzer Anti-Gas, Equilizer Gas Relief, Genasyme, Maalox Anti-Gas, Mylanta Gas, Mylicon, Phazyme3. How Dispensed:Over the counter4. Forms:125mg, 180mg, 250mg capsules; 80mg and 125mg tablets; 80mg and 125mg chewable tablets; 20mg/0.3mL and 40mg/0.6mL oral liquid; 40mg and 62.5mg oral disintegrating strips5. Drug Type/Class:Gastrointestinal agent6. Uses for Dogs and Cats:Used to treat discomfort, pain, bloating, burping, and flatulence caused by excessive intestinal gas.7. How it Works:Simethicone acts in the stomach and intestines to change the surface tension of gas bubbles, enabling their breakdown and the formation of larger bubbles, which is thought to make gas easier to eliminate.8. Side Effects and/or Signs of Overdose:Diarrhea, nausea, vomiting, and lethargy9. Drug Interactions:Levothyroxine (thyroid medication)10. Cautionary Statements:Never give your dog simethicone without the approval of your veterinarian.If your dog is showing signs of restlessness, abdominal enlargement, and nonproductive vomiting, please see your vet right away. These could be symptoms of a potentially life-threatening condition called Gastric Dilatation and Volvulus (GDV).Simethicone has not been evaluated for safety during pregnancy or lactation and should be used with caution in either situation.Read more:Medication Info Sheet: ZantacMedication Info Sheet: TagametMedication Info Sheet: ImodiumNeed to speak with a veterinarian regarding your dog’s vision or another condition?Click here to schedule a video consult to speak to one of our vets. You can also download the FirstVet app from the Apple App Store and Google Play Stores.