How often can you take Alka Seltzer tablets?
Medically reviewed by Drugs.com. Last updated on Oct 8, 2020.
The recommended adult dose of Alka Seltzer Original is 2 tablets every 4 hours as needed, or as directed by a doctor - Do not exceed 8 tablets in 24 hours.
There are various types of Alka Seltzer on the market.
Check the box for full instructions if you are unsure or call your pharmacist.