Drug Identity
Active Ingredient
Magnesium Trisilicate
Chemical Class
Aluminium salts
What is Threesil?
Uses
Aluminum hydroxide is an antacid. It neutralizes and reduces stomach acidity and relieves heartburning and indigestion. Aluminium Hydroxi...
How It Works
Chemical Class
Aluminium salts
It is of Synthetic origin and belongs to Aluminium salts. It belongs to Antacids pharmacological group.The Molecular Weight of Aluminium Hydroxide and Oxide is 78.00.
How to Take It
1
Adult · PO
250 to 1500 mg — 8 hourly
Safety Alerts
Aluminium Hydroxide and Oxide is contraindicated in conditions like Renal failure,Osteomalacia,Partial intestinal obstruction
Important Warnings
Aluminium hydroxide and oxide should be used with caution in patients with stomach disorders, allergies
Use in pregnancy if clearly needed
Side Effects
The severe or irreversible adverse effects of Aluminium Hydroxide and Oxidewhich give rise to further complications include Proximal myopathyEncephalopathyDementia.The signs and symptoms that are produced after the acute overdosage of Aluminium Hydroxide and Oxide include Chronic constipation.The symptomatic adverse reactions produced by Aluminium Hydroxide and Oxide are more or less tolerable and if they become severethey can be treated symptomaticallythese include DiarrheaConstipationChalky tasteFecal ImpactionStomach crampsOsteomalacia
Drug Interactions
Aluminium Hydroxide and Oxide is known to interact with other drugs
the details of drug interactions is as follows:DrugDetailsSeverityOnsetManagementAlfacalcidolit increases or potentiate hypercalcemiaAzithromycinPeak serum drug concentration of azithromycin is decreased.Azithromycin should be given 1 hour before or after 2 hour of antacid.CalcitriolCarbenoxolone (Na)CefpodoximeCeftibutenTake antacid a part from the doses of ceftibutin.Chenodeoxycholic AcidChlordiazepoxide (HCl)ChloroquineCimetidine (HCl)Citric AcidClopidogrelAluminium Hydroxide and Oxide do not appear to affect serum concentration of Clopidogrel. N/ANo action required.DeferasiroxDeflazacortDiacereinDecreased absorption with aluminium and/or magnesium hydroxide antacids. Take with at least two hours difference.DiflunisalDiflunisalDigoxinAluminium hydroxide may decrease the serum concentration of digoxin.MinorNo action required.Ethambutol (HCl)Etidronate (Disodium)FluorideHydroxychloroquine (Sulphate)IndomethacinIron SaltsIsoniazidKetoconazoleLevofloxacinAluminium and magnesium hydroxide containing antacids
and products containing calcium
ion and zinc salts reduce the absorption of levofloxacin.MeclofenamateConcomitant administration of aluminum hydroxides does not interfere with absorption of meclofenamate sodium.NaproxenNorfloxacinOfloxacinOlanzapineOxethazaine The use of aluminum containing antacids is contraindicated in patients with symptoms of appendicitis since these products may increase the danger of perforation or rupture due to their constipating or laxative effects.Phenylbutazone Prednisolone and Prednisone Aluminium Hydroxide and Oxide impair absorption of prednisolone and prednisonePropranolol (HCl)Pseudoephedrine (HCl)aluminium hydroxide incerases the absorbtion of Pseudoephedrine (HCl)RanitidineRifampicinRisedronate (Na)Aluminium Hydroxide and Oxide will interfere with the absorption of Risedronate (Na).SimethiconeThis interaction is sometimes beneficial and sometimes may pose threats to life. Always consult your physician for the change of dose regimen or an alternative drug of choice that may strictly be required. Sodium ClodronateSodium Polystyrene SulphonateSTRONTIUM RANELATEA 20-25% decrease in the extent of oral strontium ranelate absorption is documented with aluminium/magnesium hydroxide
when given simultaneously or two hours before strontium. Absorption was negligibly affected with administration of the antacid two hours after strontium.MinorAdminister antacids two hours after strontium ranelate. Strontium ranelate is best taken at bedtime. Strontium-89 ChlorideSaturation of bone-binding sites by calcium may reduce uptake of strontium-89 chloride. ModerateSulfolaxSulfolax docusate may increase the toxicity of Aluminium Hydroxide and Oxide by increasing intestinal absorption of the drug. ModerateConcurrent use should be avoided.TadalafilSimultaneous administration of an antacid aluminium hydroxide and oxide and tadalafil reduced the apparent rate of absorption of tadalafil without altering exposure (AUC) to tadalafil.Technetium Tc-99m OxidronateHigh blood concentrations of aluminum ion
which may occur in patients with gastrointestinal obstruction or impaired renal function
may cause localization of technetium Tc 99m oxidronate in the liver.Tetracycline (HCl)Tetracycline (HCl)Thiamine HCl (Vitamin B1)Antacids may lower thiamin levels in the body by decreasing absorption and increasing excretion or metabolism.Zalcitabine These interactions are sometimes beneficial and sometimes may pose threats to life. Always consult your physician for the change of dose regimen or an alternative drug of choice that may strictly be required.
Storage
Tab, Susp Store in a well closed container, Below 40°C. Protect from Sunlight, Moisture and Heat.
Price Intelligence
Rs 162.96
DRAP approved maximum price · 1x1000 jar pack · approved 01 Jul, 2025
No retail price observed for this pack. Retailers may not exceed the approved maximum.
Prices across sources
DRAP1x1000 jar packRs 162.96
Should you consider an alternative?
Other options containing Magnesium Trisilicate, and what they are not.
These contain this ingredient plus others. They are different medicines — do not swap.
Trisil
250mg 500mg
+ Aluminium Hydroxide
Rs 47.5Rs 4.75/unit
Efroze Chemicals Industries Private Ltd
Trisil
250mg
+ Aluminium Hydroxide
Rs 47.5
EFROZE CHEMICAL INDUSTRIES (PVT) LTD.
Trisil
+ Aluminium Hydroxide
Rs 57Rs 5.7/unit
Efroze Chemicals Industries Private Ltd
Omezac
20mg
+ Alum Hydroxide Gel
Rs 933.02
HILTON PHARMA (PVT) LIMITED
Omezac
500mg
+ Alum Hydroxide Gel
Rs 933.02 ceiling
HILTON PHARMA (PVT) LIMITED
Dijex Mp Carminative
120Ml
+ Magnesium Oxides And Hydroxides, Simethicone
Rs 180.5Rs 180.5/unit
ABBOTT LABORATORIES (PAK) LTD
Dijex Mp Mixed Fruit
120Ml
+ Magnesium Oxides And Hydroxides, Simethicone
Rs 180.5Rs 180.5/unit
ABBOTT LABORATORIES (PAK) LTD
Gaviscon
240ml
+ Calcium Carbonate, Sodium Alginate, Sodium Bicarbonate
Rs 168.48
RECKITT BENCKISER
Ordered by lowest price per unit where a pack size is known, then by price. Order is never affected by sponsorship. Not medical advice — confirm any change with your pharmacist or doctor.
For pharma professionalsCompany, market and opportunity intelligence
Company
189
brands
195
molecules
0
alerts