⚡ Quick Answer — What is Acigene?
Acigene is a chewable antacid combining aluminium hydroxide + magnesium hydroxide + simethicone + magnesium aluminium silicate, made by Cipla. It is supplied as mint or orange flavoured chewable tablets and works by directly neutralising stomach acid that has already been secreted (chemical neutralisation of HCl), physically coating the gastric and oesophageal mucosa (Mg-Al-silicate clay), and reducing intra-gastric gas (simethicone defoams trapped gas bubbles). Onset is within minutes — faster than any prescription acid medicine. Duration is short (30–60 minutes), so antacids are best for occasional or breakthrough symptoms rather than as a substitute for a PPI or H2 antagonist in chronic disease. Standard adult dose: 1–2 chewable tablets up to four times daily after meals and at bedtime, as needed. Separate by at least 2 hours from other oral medicines (the antacid binds many drugs and reduces their absorption). Avoid prolonged daily use in chronic kidney disease.
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What Acigene Is
Acigene is a Cipla chewable antacid tablet (mint or orange flavour) that combines four functional ingredients in one tablet:
- Aluminium hydroxide — an alkaline salt that neutralises gastric HCl, with mild constipating effect
- Magnesium hydroxide — a faster-acting alkaline salt with mild laxative effect — balances the constipating effect of aluminium so bowel pattern is unchanged
- Simethicone — an inert silicone polymer that defoams trapped gas bubbles in the gut, reducing bloating and flatulence
- Magnesium aluminium silicate — a clay-like mineral that physically coats the gastric and oesophageal mucosa, providing a temporary protective layer
The combination is designed to address the three components of acid-indigestion symptoms in one tablet: too much acid, too much gas, and inadequate mucosal protection.
How Acigene Works
The mechanism is purely chemical and physical, not pharmacological in the receptor-binding sense:
- Neutralisation: Al(OH)3 + 3 HCl → AlCl3 + 3 H2O. Mg(OH)2 + 2 HCl → MgCl2 + 2 H2O. Each molecule of antacid neutralises 2–3 molecules of stomach acid; the buffer capacity of one chewable tablet is in the range of 10–15 mEq HCl.
- Physical coating: Magnesium aluminium silicate is a clay-like mineral that swells in water to form a viscous gel. As the tablet is chewed and swallowed, the gel coats the oesophagus and stomach lining, providing a temporary mechanical barrier.
- Defoaming: Simethicone reduces the surface tension of small gas bubbles trapped in the gut, allowing them to coalesce into larger bubbles that are expelled. This relieves bloating and flatulence.
Onset is within 5–15 minutes — magnesium hydroxide acts within minutes; aluminium hydroxide is slower but more sustained. Total duration is 30–60 minutes, occasionally up to 90 minutes if taken after food (food in the stomach prolongs the effect). The drug does not affect future acid secretion, so antacids are best for occasional or breakthrough symptoms rather than as long-term therapy for chronic GERD.
Indications — What Acigene Is For
1. Occasional heartburn and acid indigestion
The classic antacid indication. Effective and fast for after-meal heartburn, especially after a known trigger food. Antacids are not appropriate for daily long-term use — for that pattern of symptoms, an H2 antagonist or PPI is more appropriate.
2. Breakthrough symptoms during PPI or H2-antagonist therapy
While a PPI is taking 3–5 days to reach full effect, an antacid bridges the gap. Once on chronic acid suppression, an antacid is useful for occasional break-through symptoms.
3. Functional dyspepsia — meal-related discomfort
For meal-related discomfort, bloating, and post-prandial fullness, the simethicone component plus the mucosal coating addresses the symptoms more effectively than a pure neutralisation antacid.
4. Pregnancy reflux (after lifestyle measures)
Antacids are first-line for pregnancy heartburn after lifestyle measures (head-of-bed elevation, smaller meals, late-meal avoidance). Avoid sodium-bicarbonate antacids in pregnancy (excess sodium); aluminium-magnesium combinations like Acigene are preferred.
5. Trapped wind / flatulence
The simethicone component is effective for symptomatic relief of bloating and flatulence due to swallowed air or gas-producing foods.
Dosering
| Patiënt | Dosering | Opmerkingen |
|---|---|---|
| Adults — standard dose | 1–2 chewable tablets, chewed thoroughly, up to four times daily after meals and at bedtime as needed | short courses (1–2 weeks) |
| Maximale dagelijkse dosis | Generally 8 tablets in 24 hours | do not exceed without medical advice |
| Duration without medical review | Up to 2 weeks of regular use | persisting symptoms need investigation |
| Children 6–12 years | Half adult dose, paediatric supervision | short courses only |
| Children < 6 years | Avoid — specialist advice only | aluminium concerns |
| Renal impairment (CrCl < 30 ml/min) | Avoid prolonged daily use — aluminium and magnesium accumulation | use calcium carbonate alternative |
| Zwangerschap | Standaard dosis voor volwassenen | short courses; avoid sodium-bicarbonate alternatives |
Chew the tablet thoroughly — do not swallow whole. Taking with a small amount of water after chewing helps the magnesium-aluminium silicate coating component reach the oesophagus. Best taken after meals and at bedtime when reflux is most likely.
CRITICAL: Drug Timing Rule
Bijwerkingen
Common (1–5%):
- Mild diarrhoea (from magnesium) or constipation (from aluminium) — the combination is usually balanced, but bowel pattern can shift one way
- Belching or bloating from neutralisation (CO2 generation in some formulations — less with hydroxide-based products)
- Chalky taste; dry mouth
Uncommon but important on prolonged use:
- Aluminium accumulation in chronic kidney disease — encephalopathy, osteomalacia, microcytic anaemia. Avoid prolonged daily use in CKD.
- Magnesium accumulation in renal impairment — hypermagnesaemia presenting as muscle weakness, lethargy, bradycardia, hypotension.
- Phosphate depletion — aluminium binds dietary phosphate; prolonged daily use can produce hypophosphataemia, particularly in patients on poor diet.
- Acid rebound — very high antacid doses transiently stimulate gastrin secretion, with mild rebound acid output 1–3 hours later. Not clinically important at standard doses.
Contra-indicaties en voorzorgsmaatregelen
- Known hypersensitivity to any component
- Severe chronic kidney disease (CKD stage 4–5) and dialysis — avoid prolonged use
- Severe hypophosphataemia
- Children < 6 years — specialist advice only
- Acid-related symptoms with alarm features (weight loss, dysphagia, GI bleeding, anaemia, age > 55 with new symptoms) — require investigation, not chronic antacid self-treatment
Pregnancy, Breastfeeding, and Children
Zwangerschap: Aluminium-magnesium hydroxide antacids are generally considered safe in pregnancy and are preferred over sodium bicarbonate (excess sodium). Useful for pregnancy heartburn after lifestyle measures.
Borstvoeding: Compatible — minimal absorption, no observed effects on the infant.
Kinderen: Avoid in children < 6 years without paediatric supervision because of aluminium concerns. Half adult dose for 6–12 years, short courses only.
Opslag
Store at 15–30 °C in the original blister or bottle, protected from light and moisture. Keep out of reach of children — the chewable form looks like sweets but contains aluminium and magnesium. Do not use beyond expiry date.
Veelgestelde vragen
When does Acigene start working?
Within 5–15 minutes — faster than any prescription acid medicine. The magnesium hydroxide acts within minutes; the aluminium hydroxide is slower but the effect is more sustained.
How long does each dose last?
30–60 minutes on an empty stomach; up to 90 minutes if taken after a meal (food in the stomach prolongs the effect). For symptoms that recur multiple times a day or every day, a PPI or H2 antagonist provides longer, deeper acid control and is more appropriate than repeated antacid dosing.
Can I take Acigene with my PPI?
Yes — antacids are useful while PPIs are taking 3–5 days to reach full effect, and as as-needed cover for occasional break-through episodes once on chronic PPI maintenance. Take the antacid at least 1–2 hours away from the PPI dose so it does not interfere with PPI absorption.
Why must I separate it from other medicines?
Antacids bind several drugs in the gut and raise local pH, reducing absorption. Important examples: levothyroxine (thyroid replacement), tetracyclines and fluoroquinolones (antibiotics), ketoconazole (antifungal), oral iron, bisphosphonates (osteoporosis), digoxin, phenytoin, and HIV antivirals. Take all of these at least 2 hours before, or 4 hours after, Acigene.
Is Acigene safe in pregnancy?
Yes — aluminium-magnesium hydroxide antacids are generally considered safe in pregnancy. They are preferred over sodium bicarbonate antacids because the latter add a substantial sodium load. For occasional pregnancy heartburn that does not respond to head-of-bed elevation and small frequent meals, Acigene is a reasonable first choice.
Why does the tablet have simethicone?
Simethicone is an inert silicone defoamer that reduces the surface tension of small gas bubbles trapped in the gut, allowing them to coalesce and pass. It treats the bloating and flatulence component of indigestion, which pure neutralisation antacids do not address.
Why does the tablet have magnesium aluminium silicate?
Magnesium aluminium silicate is a clay-like mineral that swells in water to form a gel. As the chewed tablet passes through the oesophagus and stomach, the gel coats the lining, providing a temporary mechanical barrier. This adds mucosal protection on top of the chemical neutralisation provided by the hydroxide salts.
Why is it not for daily long-term use?
Two reasons. First, aluminium and magnesium accumulate in patients with reduced kidney function over weeks to months — aluminium causes encephalopathy and bone disease; magnesium causes muscle weakness and bradycardia. Second, daily long-term antacid use is a sign of chronic acid disease that should be evaluated and treated with an H2 antagonist or PPI rather than masked with repeated dosing. Limit Acigene to 2 weeks of regular use without medical review.
Can I take it for a stomach ulcer?
Antacids relieve ulcer pain symptomatically but do not heal ulcers and do not eradicate H. pylori (the underlying cause of most non-NSAID ulcers). Definitive ulcer treatment requires PPI ± antibiotic eradication regimen. Use Acigene only as short-term symptom relief while awaiting medical assessment.
Can children take Acigene?
Children 6–12 years can take half the adult dose under paediatric supervision for short courses. Avoid in children under 6 because of aluminium concerns and because alarm symptoms in young children always need diagnosis rather than empirical treatment.
What if I have kidney disease?
Avoid prolonged or daily use. The aluminium and magnesium load that healthy kidneys clear easily can accumulate in chronic kidney disease (CKD stages 4–5 and on dialysis), producing aluminium-related encephalopathy and hypermagnesaemia. Calcium carbonate antacids are a safer alternative in CKD — talk to your renal physician.
Other Acid Reflux Medications at MedsBase
- Famocid — famotidine 20/40 mg — H2 antagonist; the safe modern substitute for ranitidine; useful for nocturnal acid breakthrough
- Omez — omeprazole 10/40 mg — broad strength range; lower 10 mg dose useful for step-down
- Pantodac — pantoprazole 40 mg — standard once-daily PPI; minimal CYP impact
- Esoprol — esomeprazole 20/40 mg — S-isomer of omeprazole; ~30% AUC advantage with less inter-individual variability
- Macralfaat Suspensie — sucralfate 1 g per 10 mL suspension — topical mucosal-coating ulcer healer; pairs with PPI for refractory disease































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