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- Pharmacology For Ranitidine + Domperidone + Simethicone
Ranitidine + Domperidone + Simethicone Pharmacology
Ranitidine + Domperidone + Simethicone
About Ranitidine + Domperidone + SimethiconeN/AMechanism of Action of Ranitidine + Domperidone + SimethiconeN/APharmacokinets of Ranitidine + Domperidone + SimethiconeN/AOnset of Action for Ranitidine + Domperidone + SimethiconeN/ADuration of Action for Ranitidine + Domperidone + SimethiconeN/AHalf Life of Ranitidine + Domperidone + SimethiconeN/ASide Effects of Ranitidine + Domperidone + SimethiconeN/AContra-indications of Ranitidine + Domperidone + SimethiconeN/ASpecial Precautions while taking Ranitidine + Domperidone + SimethiconeN/APregnancy Related InformationN/AOld Age Related InformationN/ABreast Feeding Related InformationN/AChildren Related InformationN/AIndications for Ranitidine + Domperidone + SimethiconeN/AInteractions for Ranitidine + Domperidone + SimethiconeN/ATypical Dosage for Ranitidine + Domperidone + SimethiconeN/ASchedule of Ranitidine + Domperidone + SimethiconeN/AStorage Requirements for Ranitidine + Domperidone + SimethiconeN/AEffects of Missed Dosage of Ranitidine + Domperidone + SimethiconeN/AEffects of Overdose of Ranitidine + Domperidone + SimethiconeN/ARanitidine
About RanitidineA histamine H2-receptor antagonist, Furan derivative, Anti-secretory G.I agent,Anti ulcer.Mechanism of Action of RanitidineRanitidine is a H2 (Histamine) receptor antagonist. Histamine is the most potent stimulus of acid secretion and acts as the common mediator. H2 receptor is a G-protein coupled receptor. It induces adenylate cyclase which converts ATP to cyclic AMP. This cyclic AMP acts on proton pump and exchange extracellular potassium ion for intracellular hydrogen ion across the parietal cell membrane. Ranitidine reversibly competes with Histamine for binding to H2 receptors on the parietal cells and predominantly inhibits basal acid secretion.
Anaesthetic adjuncts: It is used in patients undergoing prolonged operations, caesarian section,obese patients those are at increased risk of gastric regurgitation and aspiration pneumonia. It raises pH of gastric juice and also reduces its volume and thus chances of regurgitation. It is now routinely used before prolonged surgery.
Pharmacokinets of RanitidineAbsorption: Ranitidine is 50 % absorbed after oral administration. Distribution: Distributed mainly to body tissues in unbound form. Metabolism: Ranitidine undergoes metabolism in the liver. Excretion: It is excreted mainly in urine and in the faeces.Onset of Action for Ranitidine60 minutesDuration of Action for Ranitidine13hoursHalf Life of Ranitidine1.6- 2.4 hoursSide Effects of Ranitidine1. Headache
2. Dizziness
3. Constipation
4. Vertigo
5. Confusion
6. Rash
7. Blurred vision
8. Thrombocytopenia
9. Leukopenia
Contra-indications of Ranitidine1. Hypersensitivity to RanitidineSpecial Precautions while taking Ranitidine1. Hepatic impairment
2. Renal impairment
3. Acute Porphyria
Pregnancy Related InformationUse with cautionOld Age Related InformationUse with cautionBreast Feeding Related InformationUse with cautionChildren Related InformationUse with caution
NEONATES: Contraindicated
Indications for Ranitidine1. Duodenal ulcer
2. Benign gastric ulcer
3. Zollinger- Ellison syndrome
4. Gastroesophageal reflux
5. Acid indigestion
6. Heart burn
7. Sour stomach
8. Stress ulcers
9. Oesophagitis
10.Preanaesthetic medication
Interactions for RanitidineAntacids: Ranitidine absorption may be decreased.
Diazepam: Efficacy of diazepam decreased.
Procainamide: Renal clearance of procainamide decreased.
Sulfonylureas: Hypoglycemic effects of glipizide enhanced.
Theophyllines: Increased efficacy of theophyllines with possible toxicity.
Warfarin: Increased hypoprothrombinemic effects.
Lab tests: False positive tests for urine proteins with multistix may occur.Typical Dosage for RanitidineAdult: 300mg / day
Duodenal ulcer, benign gastric ulcer: 300 mg /day as single dose at bed time or in 2 divided dose (morning and bed time) for minimum of 4 weeks.
Maintenance dose: 150 mg / day at bed time.
Zollinger- Ellison syndrome: 300 - 450 mg / day in 2 - 3 divided doses; dose can be increased if necessary to a maximum up to 6g / day .
Gastroesophageal reflux: 300 mg / day as single dose at bed time or in 2 divided doses (morning and bed time) for maximum 2 months. In severe conditions dose can be increased to 600 mg / day in 4 divided doses for 3 months
Acid indigestion, Heart burn, Sour stomach: Dose: 75 mg once daily to a maximum up to 150 mg / day.
Oesophagitis: 150 mg/ day.
Dyspepsia: 75 - 300 mg / day depending on the severity of disease.
PAM: 150mg given night and in the morning before surgical procedures.
Children:
Duodenal ulcer, benign gastric ulcer: 4 - 8 mg / kg body weight / day in 2 divided doses.
Maximum dose: 300 mg / day
Schedule of RanitidineHStorage Requirements for RanitidineStore at 15 - 30 degree C in a tightly closed container. Protect from light.Effects of Missed Dosage of RanitidineTake the missed dose as soon as noticed and if it is the time for next dose then skip the missed dose. Continue the regular schedule. Do not double the dose.Effects of Overdose of RanitidineGive supportive measures and symptomatic treatment. Drug can be removed from the body by inducing emesis and or by gastric lavage. Activated charcoal is given to reduce the absorption of the drug. Haemodialysis can be done if necessary.Domperidone
About DomperidoneAntidopaminergic, Motility stimulant,Piperidine derivative, Antiemetic, anti-vertigo.Mechanism of Action of DomperidoneDomperidone is a potent dopamine receptor antagonist. It acts centrally and blocks the Dopamine receptor in the Chemoreceptor trigger zone and produces Antiemetic effect.
Domperidone acts peripherally in the gastrointestinal system and increases oesophageal peristalsis, oesophageal sphincter pressure and gastric motility. These all facilitates gastric emptying. Domperidone is used in migraine to relieve nausea and vomiting.
Anaesthetic adjuncts: It is used preoperatively in order to reduce the post operative vomiting.
Pharmacokinets of DomperidoneAbsorption: Domperidone is rapidly absorbed after oral administration. Since it undergoes first pass metabolism oral bioavailability is only 15 %. Distribution: It is widely distributed in the body in protein bound form. Metabolism: Domperidone undergoes metabolism in the liver. Excretion: It is excreted mainly in the faeces and also in the urine.Onset of Action for Domperidone30 - 60 minutesDuration of Action for Domperidone6 - 8 hoursHalf Life of Domperidone7.5 hoursSide Effects of Domperidone1.Diarrhoea
2.Dry mouth
3.Galactorrhoea
4.Gynaecomastia
5.Skin rash
6.Abdominal discomfort
7.Dystonic reactions
Contra-indications of Domperidone1.Hypersensitivity to Domperidone
2.Prolactin releasing pituitary tumour(prolactinoma)
3.Gastrointestinal obstruction
Special Precautions while taking Domperidone1.Hepatic impairment
2.Renal impairment
Pregnancy Related InformationContraindicatedOld Age Related InformationUse with cautionBreast Feeding Related InformationUse with cautionChildren Related InformationUse with caution
NEONATES: contraindicatedIndications for Domperidone1.Nausea and vomiting associated with gastrointestinal disorder and migraine.
2.Delayed gastric emptying of functional origin
3.As an Antiemetic in patient receiving cytotoxic drugs
4.Preanaesthetic medication
Interactions for DomperidoneDigoxin: Oral dose of digoxin needs to be reduced.
Aspirin, Paracetamol & Oral Diazepam: Increases absorption of these agents.
Anticholinergic agents: Antagonize the effects of domperidone.
Phenothiazines: CNS depression enhanced by domperidone.
Antimuscarinic agents and opioids: Antagonize GI effects of domperidone.
Suxamethonium: Neuromuscular blockade enhanced by domperidone.Typical Dosage for DomperidoneAdults: 30 - 40 mg / day in 3 - 4 divided doses 30 minutes before meals and at bed time if required. After 2 weeks dose can be increased to 60 - 80 mg / day if needed.
Migraine: 20 mg by mouth may be taken up to every 4 hours with Paracetamol, as required up to a maximum of 4 doses in 24 hours.
Children: 300 mcg / kg body weight 3 - 4 times daily 30 minutes before meals and at bed time if required
Schedule of DomperidoneHStorage Requirements for DomperidoneStore at room temperature (15 - 30 degree C). Protect from direct sun light and moistureEffects of Missed Dosage of DomperidoneTake the missed dose as soon as noticed and if it is the time for next dose then skip the missed dose. Continue the regular schedule. Do not double the dose.Effects of Overdose of DomperidoneGive supportive measures and symptomatic treatment. Drug can be removed from the body by gastric lavage and absorption of the drug can be reduced by administration of activated charcoal. To control Extrapyramidal reactions give antiparkinsonian or anticholinergic agents. Simethicone
About SimethiconeOral anti-foaming agent, Silicones, Antiflatulent.Mechanism of Action of SimethiconeThis anti-gas (anti-flatulence) medication acts in the stomach and intestines to change the surface tension of gas bubbles, enabling smaller bubbles to join together into bigger bubbles. It results elimination of gas more easily by belching or passing flatus.Pharmacokinets of SimethiconeExcretion- Excreted through feces.Onset of Action for SimethiconeN/ADuration of Action for SimethiconeN/AHalf Life of SimethiconeN/ASide Effects of Simethicone1. Bloating
2. Constipation
3. Diarrhea
4. Gas
5. Heartburn
Contra-indications of Simethicone1. Hypersensitivity to the drug
2. Liver disease
3. Kidney disease
4. Serious illness
Special Precautions while taking Simethicone1.Swallow the tablets and capsules with a full glass of water.
2.Chew the chewable tablets thoroughly before swallowing.
3.Shake the drops well before using them.
4.To make administration easier, the drops can be mixed with 30 ml (2 tablespoons) of water or another liquid.
Pregnancy Related InformationUse with cautionOld Age Related InformationUse with cautionBreast Feeding Related InformationUse with cautionChildren Related InformationUse with cautionIndications for Simethicone1. Abdominal pain which is due to excessive gas in the digestive tract
2. Before gastroscopy or radiography of the bowel
Interactions for SimethiconeN/ATypical Dosage for SimethiconeOral-
Adults and teenagers-
60 -125mg four times a day, after meals and at bedtime. Not more than 500 mg should be taken in twenty-four hours.
Chewable tablets:
Adults and teenagers-
40 -125 mg four times a day, after meals and at bedtime or 150 mg three times a day, after meals. Not more than 500 mg should be taken in twenty-four hours.
Suspension:
Adults and teenagers-
40 -95 mg four times a day, after meals and at bedtime. Not more than 500 mg should be taken in twenty-four hours.
Schedule of SimethiconeN/AStorage Requirements for SimethiconeStored at room temperature (15-30?C) away from moisture and heat.Effects of Missed Dosage of SimethiconeTake the missed dose as soon as noticed and if it is the time for next dose then skip the missed dose. Continue the regular schedule. Do not double the dose.Effects of Overdose of SimethiconeGive symptomatic and supportive treatment.Home Delivery for Ranitidine + Domperidone + Simethicone in Your City
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