After you drink the refreshing, sparkling solution, Alka-Seltzer Plus® works quickly to relieve your most bothersome sinus symptoms: Sinus Congestion & Pressure, Nasal Congestion, Headache & Body Ache, Sore Throat, Runny Nose & Sneezing, Cough.

adults and children 12 years and over: take 2 capsules with water every 4 hours. Do not exceed 12 capsules in 24 hours or as directed by a doctor.

This combination medication is used to temporarily treat cough, stuffy nose, body aches, and other symptoms (such as fever, headache, sore throat) caused by the common cold, flu, or other breathing illnesses (such as sinusitis, bronchitis).

See also Warning section. Dizziness, drowsiness, headache, nausea, nervousness, or trouble sleeping may occur. If any of these effects last or get worse, contact your doctor or pharmacist promptly.

Drowsiness, dizziness, blurred vision, upset stomach, nausea, nervousness, constipation, or dry mouth/nose/throat may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

Directions. adults and children 12 years and over: take 2 tablets fully dissolved in 4 oz of water every 4 hours. Do not exceed 8 tablets in 24 hours or as directed by a doctor.

Official answer. 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.

Many people who use these products are not aware that they contain aspirin, but they do. Actually, Alka Seltzer Original contains 324mg of aspirin, which is the equivalent of a full-dose aspirin tablet. Taking this on a regular basis can lead to stomach ulcers and bleeding.

Alka-Seltzer Plus Cold has a high amount of sodium, which is table salt. Since this medication can add a lot of sodium to your diet, it can worsen certain health conditions like high blood pressure. Alka-Seltzer Plus Cold also contains phenylephrine (a decongestant), which might also raise blood pressure.

Because Alka-Seltzer contains aspirin, there's a chance this medication can raise your risk for stomach bleeds. Get medical help right away if you feel faint, vomit blood, have bloody or black stools, or have stomach pain that doesn't get better. These might be symptoms of stomach bleeds.

Dilated blood vessels can cause nasal congestion (stuffy nose). Alka-Seltzer Cold and Sinus is a combination medicine used to treat headache, fever, body aches, stuffy nose, and sinus congestion caused by allergies, the common cold, or the flu.

Actually, Alka Seltzer Original contains 324mg of aspirin, which is the equivalent of a full-dose aspirin tablet. Taking this on a regular basis can lead to stomach ulcers and bleeding.