Al/Mg antacid
MAALOX / MYLANTA
What it isA combination antacid pairing aluminum hydroxide with magnesium hydroxide to neutralize gastric acid.
Why this oneCombining the two balances aluminum's constipating effect against magnesium's laxative effect for better GI tolerability than either alone.
What limits itLike other polyvalent-cation antacids it binds fluoroquinolones, tetracyclines, and other drugs, and both cations can accumulate dangerously in renal impairment.
FDA label
Read the full label on DailyMed ↗
| FDA dosing | Population | Start | Target | Max |
|---|---|---|---|---|
| Antacid / antigas (per Drug Facts Purpose) | Adults and children >=12 y | 2-4 tsp (10-20 mL) QID, or as directed by a physician | 2-4 tsp (10-20 mL) QID | 16 tsp (80 mL)/24 h; do not use maximum dosage >2 weeks |
| Antacid / antigas (per Drug Facts Purpose) | Children <12 y | Consult a physician | Consult a physician | Not stated |
Renal Ask a doctor before use if you have kidney disease (OTC label; no dose adjustment given)
Hepatic Undefined
Do not exceed 16 teaspoonfuls in 24 h, or use the maximum dosage for more than 2 weeks, except under physician supervision
Instructions
- Shake well before using
- Each 5 mL (1 teaspoonful) = aluminum hydroxide 200 mg + magnesium hydroxide 200 mg + simethicone 20 mg
Available strengths
- susp 800/800/80 mg/10 mL
- susp 1200/1200/120, 2400/2400/240 mg/30 mL
- susp 200/200/20, 400/400/40 mg/5 mL
- sol 12.38/40/400 g/20 g
- sol 400/400/40, 800/800/80 mg/10 mL
- sol 200/200/20 mg/5 mL
Cautions
- Ask a doctor before use if you have kidney disease or are on a magnesium-restricted diet
- Ask a doctor or pharmacist before use if taking a prescription drug - antacids may interact with certain prescription drugs
- Stop use and ask a doctor if symptoms last more than 2 weeks
- Do not use maximum dosage for more than 2 weeks except under physician supervision
- Keep out of reach of children
Pregnancy Undefined
Lactation Undefined
Cost
| Strength | #/mo | generic $/unit | CostPlus | |
|---|---|---|---|---|
| 800/800/80 mg/10 mL | susp | per unit | $0.01/mL | not offered |
| 1200/1200/120 mg/30 mL | susp | per unit | not offered | |
| 2400/2400/240 mg/30 mL | susp | per unit | not offered | |
| 200/200/20 mg/5 mL | susp | per unit | $0.01/mL | not offered |
| 400/400/40 mg/5 mL | susp | per unit | $0.01/mL | not offered |
NO BOXED WARNINGS
Principal riskNo FDA boxed warning.