Module 10 part 1- Drugs Impacting the Gastrointestinal System

Classes of Antiulcer Drugs

There are 5 major classes of antiulcer drugs:

• Antibiotics – Eradicate Helicobacter pylori (H. pylori), a common cause of peptic ulcers.

• Antisecretory agents – Reduce gastric acid secretion (primarily Proton Pump Inhibitors [PPIs]).

• Mucosal protectants – Form a protective barrier over the ulcer to shield it from stomach acid (e.g., sucralfate and bismuth subsalicylate).

• Antisecretory agents that enhance mucosal defenses – Reduce acid while strengthening the stomach's protective lining (e.g., misoprostol, a prostaglandin analog).

• Antacids – Weak bases that neutralize existing stomach acid (e.g., Tums and Maalox).

Standard Treatment for H. pylori Peptic Ulcers (Bismuth Quadruple Therapy)

Bismuth quadruple therapy is the current standard treatment for peptic ulcers caused by H. pylori.

It consists of:

• 2 antibiotics:

  • Metronidazole

  • Tetracycline

• 1 Proton Pump Inhibitor (PPI)

• Bismuth subsalicylate

Remember:
2 antibiotics + PPI + Bismuth = Bismuth Quadruple Therapy

Triple Therapy vs. Bismuth Quadruple Therapy

• Old standard: Triple therapy with clarithromycin.

• Current standard: Bismuth quadruple therapy.

• Reason for the change: Higher rates of clarithromycin resistance have developed, making triple therapy less effective.

Antisecretory Agents vs. Antisecretory Agents that Enhance Mucosal Defenses

Antisecretory agents

• Primarily refers to Proton Pump Inhibitors (PPIs).

• Main action: Decrease gastric acid secretion.

Antisecretory agents that enhance mucosal defenses

• Misoprostol is the main drug.

• It is a prostaglandin analog.

• Actions:

  • Decreases gastric acid secretion.

  • Enhances the stomach's natural protective (mucosal) defenses.

Mucosal Protectants

Pure mucosal protectants work by creating a protective barrier between stomach acid and the gastric mucosa/ulcer.

Examples:

• Sucralfate

• Bismuth subsalicylate

Key concept: They protect the ulcer rather than significantly reducing acid production.

Antacids

• Antacids are weak bases.

• They provide mild neutralization of stomach acid.

• They work by neutralizing acid that is already present in the stomach rather than preventing acid production.

Examples:

• Tums

• Maalox

Memory tip:
Antacids = Acid already there → Neutralize it.

Antibiotics for H. pylori-Associated Peptic Ulcers

Eradicate Helicobacter pylori (H. pylori) to promote ulcer healing and prevent recurrence.

Common antibiotics used:

• Clarithromycin

• Amoxicillin

• Tetracycline

• Metronidazole

• Tinidazole

Other medication used:

• Bismuth compounds (included in bismuth quadruple therapy)

Key point: A minimum of two antibiotics is prescribed, and up to three antibiotics may be used to reduce the risk of antibiotic resistance.

Choosing Antibiotics for H. pylori: Resistance & Current Recommendations

• Clarithromycin was once the first-choice antibiotic, but it is no longer preferred because clarithromycin resistance is now common.

• The most common antibiotic combination is:

  • Metronidazole

  • Tetracycline

• Goal of therapy: Minimize the emergence of antibiotic resistance by using at least two antibiotics, with three antibiotics preferred when appropriate.

Complete Drug Therapy for H. pylori-Associated Ulcers

Treatment for H. pylori ulcers includes more than just antibiotics.

Recommended regimen:

• At least two antibiotics (preferably three)

• An antisecretory agent, which should be either:

  • Proton Pump Inhibitor (PPI) or

  • Histamine-2 Receptor Antagonist (H2RA)

Treatment duration:

• 10-day course: Good eradication rates.

• 14-day course: Slightly better eradication rates than 10 days.

Overall goal: Completely eradicate H. pylori, heal the ulcer, and reduce the development of antibiotic resistance.

Metronidazole (Flagyl): H. pylori Uses, Mechanism, Adverse Effects, Nursing Considerations, & Patient Teaching

Classification

• Antiprotozoal antibiotic

Role in H. pylori Treatment

• First-line choice for H. pylori treatment despite increasing resistance.

• When combined with bismuth subsalicylate, resistance is overcome (similar concept to combination antibiotics like Zosyn), making it effective as part of bismuth quadruple therapy.

Effectiveness

• Very effective against sensitive strains of H. pylori.

• Over 40% of strains are now resistant, which is why combination therapy is recommended.

Common Adverse Effects

• Nausea

• Vomiting

• Diarrhea

• Headache

Alcohol Interaction (Very Important!)

• DO NOT drink alcohol while taking metronidazole and for at least 3 days after the last dose.

• Metronidazole prevents the metabolism of alcohol, causing a disulfiram-like reaction, which may include:

  • Severe nausea and vomiting

  • Throbbing headache

  • Tachycardia

  • Chest pain

• Check for hidden sources of alcohol, including:

  • Mouthwash

  • Cough syrup

Drug Interactions

• May increase INR in patients taking warfarin, increasing the risk of bleeding.

Pregnancy

• Avoid during pregnancy, especially during the first trimester, because it is teratogenic.

Key Nursing & Patient Teaching

• Teach patients to avoid all alcohol during therapy and for 3 days after the final dose.

• Instruct patients to read labels for hidden alcohol-containing products.

• Monitor patients on warfarin for increased INR and signs of bleeding.

• Explain that metronidazole is commonly used in combination with other medications for successful eradication of H. pylori.

Tetracycline: H. pylori Uses, Adverse Effects, Contraindications, Nursing Considerations, & Patient Teaching

Role in H. pylori Treatment

• Used as part of bismuth quadruple therapy.

• Very effective against sensitive strains of H. pylori when combined with metronidazole.

• Resistance is <1%, making it an excellent choice for H. pylori treatment.

Common Adverse Effects

• Nausea

• Vomiting

• Diarrhea

• Photosensitivity (increased sensitivity to sunlight)

• Esophageal ulceration

• Yellow or brown tooth discoloration, especially in developing teeth

Serious Adverse Effects

• Superinfection (enterocolitis) – rare but serious

  • Caused by rapid overgrowth of Staphylococcus in the bowel

  • If diarrhea develops, determine the cause before treating because it may indicate superinfection rather than a routine medication side effect.

• Hepatotoxicity

• Nephrotoxicity

Contraindications

• Pregnancy

• Children (can permanently discolor developing teeth)

Nursing Considerations & Patient Teaching

• Take with a full glass of water to reduce the risk of esophageal ulceration.

• Take at bedtime with lots of water (per your notes) to help reduce esophageal irritation/ulceration.

• Avoid excessive sun exposure and use sunscreen/protective clothing because of photosensitivity.

• Monitor for severe or persistent diarrhea, which may indicate enterocolitis (superinfection) rather than a common side effect.

• Do not use during pregnancy or childhood because of the risk of permanent tooth discoloration and effects on developing teeth.

Clarithromycin (Biaxin): Class, Mechanism, H. pylori Uses, Adverse Effects, Nursing Considerations, & Patient Teaching

Classification

• Macrolide antibiotic

• Same drug class as:

  • Azithromycin

  • Erythromycin

Mechanism of Action

• Suppresses the growth of H. pylori by inhibiting protein synthesis.

Role in H. pylori Treatment

• In the absence of resistance, clarithromycin is highly effective against H. pylori.

• Resistance is increasing, exceeding 20% in some areas, which is why clarithromycin is no longer the first-choice antibiotic in many treatment guidelines.

Common Adverse Effects

• Nausea

• Vomiting

• Diarrhea

• Metallic taste (distortion of taste) – a common patient complaint

• Photosensitivity

Serious Adverse Effects

• QT interval prolongation

• Hepatotoxicity

Nursing Considerations

• Routine ECGs are NOT necessary for routine short courses of clarithromycin, despite the risk of QT prolongation.

• Monitor for signs of liver toxicity if therapy is prolonged or symptoms develop.

Patient Teaching

• Teach patients to wear extra sunscreen and protective clothing because photosensitivity is common.

• Inform patients that a metallic taste is a common side effect and is usually temporary.

• Advise patients to report symptoms of liver problems (e.g., jaundice, dark urine, severe fatigue) or symptoms of arrhythmias (e.g., palpitations, dizziness, fainting).

Amoxicillin: Class, Mechanism, H. pylori Uses, Adverse Effects, Nursing Considerations, & Patient Teaching

Classification

• Penicillin (PCN) derivative antibiotic

Mechanism of Action

• Kills bacteria by disrupting the bacterial cell wall.

Role in H. pylori Treatment

• H. pylori is highly sensitive to amoxicillin.

• Resistance is low (about 3%), although reinfection rates are increasing.

• Poorly effective when used alone, so it is used in combination with other antibiotics and an antisecretory agent as part of H. pylori treatment.

Effect of Gastric pH

• Antibacterial activity is highest at a neutral pH.

• Effectiveness is enhanced by reducing stomach acid with an antisecretory agent, such as:

  • Omeprazole (a Proton Pump Inhibitor [PPI])

Adverse Effects

• Most common side effect: Diarrhea

• Generally very well tolerated

Nursing Considerations & Patient Teaching

• Explain that amoxicillin is not effective by itself for H. pylori and should be taken with the other prescribed medications for the full course of therapy.

• Taking it with a PPI (e.g., omeprazole) helps improve its effectiveness by creating a less acidic (more neutral) environment.

• Monitor for diarrhea and assess for signs of antibiotic-associated diarrhea if it becomes severe or persistent.

• Assess for a penicillin allergy before administering because amoxicillin is a penicillin derivative.

Bismuth Compounds (Bismuth Subsalicylate/Pepto-Bismol): Mechanism, Uses, Adverse Effects, Nursing Considerations, & Patient Teaching

Primary Drug

• Bismuth subsalicylate (Pepto-Bismol)

Mechanism of Action

• Acts topically to disrupt the cell wall of H. pylori, causing bacterial lysis and death.

• May inhibit urease activity and prevent H. pylori from adhering to the gastric surface.

• Coats the stomach, creating a physical protective barrier over raw and irritated tissues to protect them from stomach acid and promote healing.

Role in H. pylori Treatment

• Used as part of bismuth quadruple therapy for H. pylori eradication.

Adverse Effects

• Harmless black discoloration of the tongue

• Harmless black stools

• Long-term therapy: Possible risk of neurologic injury due to bismuth bioaccumulation, which can lead to encephalopathy.

Nursing Considerations

• Bismuth can bioaccumulate, increasing the risk of encephalopathy with prolonged use.

• Outside of specific situations (such as H. pylori treatment), bismuth compounds should not be taken for more than 2 days.

Patient Teaching

• Explain that black stools and a black tongue are expected, harmless side effects and do not indicate bleeding.

• Take exactly as prescribed when used for H. pylori treatment.

• Do not use Pepto-Bismol for longer than 2 days unless specifically directed by the provider (exception: prescribed H. pylori treatment).

• Report any signs of neurologic changes (confusion, altered mental status, difficulty thinking), especially with prolonged use, as these may indicate bismuth accumulation/encephalopathy.

Proton Pump Inhibitors (PPIs): Mechanism, Uses, Adverse Effects, Nursing Considerations, & Patient Teaching

Mechanism of Action

• Most effective drugs for suppressing gastric acid secretion.

• Decrease gastric acid production by inhibiting the proton pump (H⁺/K⁺-ATPase) in the stomach.

Therapeutic Uses (Primarily Short-Term)

• Gastric ulcers

• Duodenal ulcers

• Gastroesophageal reflux disease (GERD)

• Used as the antisecretory agent in H. pylori treatment regimens

Selection of a PPI

• PPIs are generally well tolerated.

• Choice of a specific PPI is usually based on:

  • Cost

  • Prescriber's preference

Adverse Effects & Risks

• Decreased absorption of minerals and vitamins, including:

  • Calcium

  • Magnesium

  • Vitamin B12

• Reduced absorption of calcium may increase the risk of fractures.

• Less stomach acidity allows bacteria to survive more easily in the GI tract, increasing the risk of:

  • Pneumonia

  • Clostridioides difficile (C. diff) intestinal infection

• Gastric acid rebound can occur after stopping therapy due to increased gastrin production, causing a temporary increase in stomach acid secretion.

Nursing Considerations

• PPIs are intended primarily for short-term therapy when appropriate.

• Monitor for signs of:

  • Vitamin B12 deficiency

  • Hypomagnesemia

  • Fractures with long-term use

  • Pneumonia

  • C. difficile infection (persistent or severe diarrhea)

Patient Teaching

• Take the medication exactly as prescribed.

• Report persistent diarrhea, which may indicate C. difficile infection.

• Do not stop PPIs abruptly without provider guidance because acid rebound may occur.

• If taking PPIs long term, discuss monitoring for calcium, magnesium, and vitamin B12 deficiencies with the healthcare provider.

Omeprazole (Prilosec): Class, Uses, Adverse Effects, Nursing Considerations, & Patient Teaching

Classification

• Proton Pump Inhibitor (PPI)

• First available PPI

Mechanism of Action

• Inhibits gastric acid secretion by blocking the proton pump in the stomach.

Therapeutic Uses

• FDA-approved for H. pylori treatment (used in combination therapy).

• Used for short-term therapy of:

  • Gastric ulcers

  • Duodenal ulcers

  • GERD

Characteristics

• Short half-life

• Ulcer prophylaxis is indicated only for ICU patients who have an additional risk factor, such as:

  • Multiple trauma

  • Spinal cord injury

  • Prolonged mechanical ventilation (>48 hours)

Adverse Effects

Usually inconsequential with short-term use, but possible adverse effects include:

• Headache

• GI effects

• Pneumonia

• Fractures

• Hypomagnesemia

• Rebound acid hypersecretion

• Clostridioides difficile (C. difficile) infection

Nursing Considerations

• Monitor for long-term complications if therapy is prolonged:

  • Low magnesium

  • Fracture risk

  • C. difficile infection

• Use stress ulcer prophylaxis only when indicated (ICU patients with additional risk factors).

Patient Teaching

• Take exactly as prescribed.

• Report persistent diarrhea, which could indicate C. difficile infection.

• Do not stop the medication abruptly without provider guidance because rebound acid hypersecretion may occur.

• Report symptoms of hypomagnesemia (muscle cramps, weakness, irregular heartbeat) if taking long term.

Nondrug Therapy for Peptic Ulcer Disease (PUD): Diet & Lifestyle Modifications

Diet

• The traditional "ulcer diet" (bland, soft, low-fiber diet) was previously recommended to reduce acid production but is not evidence-based and does not accelerate ulcer healing.

• There is no convincing evidence that caffeinated beverages cause ulcers or delay healing.

• Eating 5–6 small meals per day helps reduce gastric pH fluctuations, which may improve symptom control.

Avoid

These substances irritate the gastric mucosa and delay ulcer healing:

• Smoking (tobacco)

• Alcohol

• Aspirin (ASA)

• Nonsteroidal anti-inflammatory drugs (NSAIDs)

Stress

• Stress is directly associated with increased gastric acid production.

• Stress reduction is an important nonpharmacologic intervention for patients with peptic ulcer disease.

Key Nursing & Patient Teaching

• Encourage patients to eat smaller, more frequent meals rather than relying on a restrictive "ulcer diet."

• Teach patients to avoid smoking, alcohol, aspirin, and NSAIDs because they slow ulcer healing and increase mucosal irritation.

• Encourage stress-management techniques (e.g., relaxation, exercise as appropriate, adequate sleep) to help reduce acid production and improve symptoms.

NSAID-Induced Ulcers: Prophylaxis, Treatment, Evaluation, Nursing Considerations, & Patient Teaching

Overview

• NSAID-induced ulcers are more of a straightforward gastrointestinal bleed (GIB).

• They have a lower risk of recurrence than H. pylori-associated ulcers once the NSAID is discontinued.

Risk Factors for Ulcer Development

• Age >60 years

• History of peptic ulcers

• High-dose NSAID therapy

Prophylaxis (Prevention)

• Proton Pump Inhibitors (PPIs) (e.g., omeprazole) are the preferred drugs for ulcer prevention in high-risk patients taking NSAIDs.

• Misoprostol is also effective but commonly causes diarrhea.

Treatment

• First step: Remove the cause by discontinuing NSAIDs whenever possible.

• Histamine-2 receptor antagonists (H2 blockers) and PPIs are the preferred medications for treatment.

• During an acute GI bleed, blood thinners (including aspirin [ASA]) are often stopped temporarily, if clinically appropriate.

Evaluation of Treatment

Treatment is considered successful when there is:

• Resolution of symptoms

• Stabilization of laboratory values (indicating the bleeding has stopped and healing is occurring)

Patient Teaching

• Do not combine aspirin (ASA) with other NSAIDs, as this significantly increases the risk of ulcer formation and GI bleeding.

• If long-term pain control is needed, discuss alternative therapies with the healthcare provider.

• Take ulcer-prevention medications exactly as prescribed if continued NSAID therapy is necessary.

Histamine-2 Receptor Antagonists (H2RAs): Drugs, Mechanism, Uses, Adverse Effects, Nursing Considerations, & Patient Teaching

Drugs

• Cimetidine (Tagamet)

• Ranitidine (Zantac) – withdrawn from the market

• Famotidine (Pepcid)

• Nizatidine (Axid)

Mechanism of Action

• Histamine stimulates H2 receptors in the stomach, increasing gastric acid secretion.

• H2 receptor antagonists selectively block H2 receptors in the stomach (rather than H1 receptors throughout the body like traditional antihistamines).

• Suppress gastric acid secretion, especially:

  • Basal acid production

  • Nocturnal (nighttime) acid production

• They do NOT completely stop acid secretion, because the stomach can still produce increased acid in response to food.

Therapeutic Uses

• First-choice drugs for treating gastric and duodenal ulcers

• Promote ulcer healing by suppressing gastric acid secretion.

• GERD treatment

Adverse Effects

• Serious adverse effects are uncommon.

Nursing Considerations

• Most effective for reducing basal and nighttime acid secretion.

• Less effective at suppressing meal-stimulated acid secretion than Proton Pump Inhibitors (PPIs).

Patient Teaching

• Take as prescribed to promote ulcer healing and control GERD symptoms.

• Understand that these medications reduce stomach acid but do not completely eliminate acid production, especially after meals.

• Ranitidine (Zantac) is no longer available because it has been withdrawn from the market.

Cimetidine (Tagamet): Mechanism, Pharmacokinetics, Therapeutic Uses, Adverse Effects, Drug Interactions, Nursing Considerations, & Patient Teaching

Classification

• Histamine-2 Receptor Antagonist (H2RA)

Mechanism of Action

• Blocks H2 receptors in the stomach, reducing gastric acid secretion.

Pharmacokinetics

• Absorption is slowed if taken with meals.

• Crosses the blood-brain barrier with difficulty, but can still produce CNS side effects.

Therapeutic Uses

• Gastric ulcers

• Duodenal ulcers

• Gastroesophageal reflux disease (GERD)

• Zollinger-Ellison syndrome

• Relief of:

  • Heartburn

  • Acid indigestion

  • Sour stomach

Adverse Effects

• Antiandrogenic effects

• CNS effects:

  • Confusion

  • Agitation

  • Drowsiness

• Pneumonia, due to reduced stomach acid allowing bacterial overgrowth (loss of the stomach's protective bacterial barrier)

Drug Interactions

• Can interact with:

  • Warfarin

  • Phenytoin

  • Theophylline

  • Lidocaine

• Antacids decrease the absorption of cimetidine.

  • Administer cimetidine and antacids at least 1 hour apart.

Current Role in Therapy

• No longer considered first-line therapy.

• Proton Pump Inhibitors (PPIs) generally provide equal or better ulcer healing with fewer adverse effects.

Nursing Considerations

• Monitor for confusion or drowsiness, especially in older adults.

• Assess for potential drug interactions, particularly in patients taking warfarin, phenytoin, theophylline, or lidocaine.

• Separate administration from antacids by at least 1 hour.

Patient Teaching

• Take antacids at least 1 hour before or after cimetidine.

• Report confusion, excessive drowsiness, or other CNS changes.

• Inform the healthcare provider of all medications being taken because cimetidine has multiple drug interactions.

• Explain that PPIs are now generally preferred because they have fewer side effects and similar or greater effectiveness.

Misoprostol (Cytotec): Class, Mechanism, Therapeutic Uses, Adverse Effects, Contraindications, Nursing Considerations, & Patient Teaching

Classification

• Synthetic prostaglandin (Prostaglandin analog)

• "Rest and digest" drug

Mechanism of Action

Misoprostol enhances the stomach's natural defenses by:

• Helping rebuild the stomach lining (gastric mucosa)

• Increasing blood flow to the gastric mucosa

• Stimulating bicarbonate production, which helps neutralize stomach acid

• Reducing gastric acid secretion while enhancing mucosal protection

Therapeutic Uses

• Only FDA-approved GI indication: Prevention of gastric ulcers caused by long-term NSAID therapy

Most Common Adverse Effects

• Dose-related diarrhea

• Abdominal pain

• Abdominal cramping

• Nausea

• Vomiting

Serious Adverse Effects

• Can cause cervical cramping

• Can stimulate uterine contractions (rare but clinically significant)

Contraindications

• Pregnancy

  • Misoprostol can stimulate uterine contractions and may cause miscarriage.

  • Significant precautions must be taken to ensure the patient is NOT pregnant before starting therapy and does not become pregnant while taking the medication.

Nursing Considerations

• Assess pregnancy status before initiating therapy.

• Monitor for dose-related GI effects (especially diarrhea and abdominal cramping).

• Used primarily for NSAID-induced ulcer prevention, not routine ulcer treatment.

Patient Teaching

• Do not use during pregnancy.

• Use effective contraception if pregnancy is possible while taking misoprostol.

• Report severe abdominal cramping or persistent diarrhea.

• Explain that diarrhea and abdominal pain are the most common side effects and are often dose related.

Sucralfate (Carafate): Class, Mechanism, Therapeutic Uses, Adverse Effects, Drug Interactions, Nursing Considerations, & Patient Teaching

Classification

• Mucosal protectant

Mechanism of Action

• Forms a thick, sticky protective coating over ulcers and the stomach lining.

• Creates a protective barrier that lasts up to 6 hours, shielding the ulcer from acid, pepsin, and bile to promote healing.

• Requires an acidic environment to work.

• Minimal systemic absorption, so most of its effects are local within the GI tract.

Therapeutic Uses

• Acute gastric and duodenal ulcers

• Maintenance therapy to prevent ulcer recurrence

Adverse Effects

• Most common: Constipation (caused by the viscosity/thickness of Carafate)

• Constipation occurs in about 2% of patients (per your lecture slide)

• May also cause:

  • Dry mouth

  • Nausea

Drug Interactions

• Minimal systemic drug interactions

• Antacids interfere with the action of sucralfate because an acidic environment is required for the medication to work.

• Separate antacids and sucralfate by at least 30 minutes.

Special Considerations

• Use caution in patients with renal impairment, as the aluminum contained in sucralfate may bioaccumulate.

Nursing Considerations

• Administer on an empty stomach, at least 1 hour before meals.

• Give at least 30 minutes apart from antacids.

• Monitor for constipation and encourage fluids/fiber if appropriate.

• Monitor patients with renal impairment for signs of aluminum accumulation if used long term.

Patient Teaching

• Take on an empty stomach at least 1 hour before meals.

• Do not take with antacids—separate doses by at least 30 minutes.

• Explain that sucralfate does not reduce stomach acid; instead, it forms a protective barrier over ulcers to allow healing.

• Increase fluids (if not contraindicated) and report persistent constipation.

• Patients with kidney disease should inform their provider before taking sucralfate because of the risk of aluminum accumulation.

Antacids: Mechanism, Uses, Adverse Effects, Drug Interactions, Nursing Considerations, & Patient Teaching

Classification

• Weak bases that neutralize existing stomach acid.

• Most antacids are metal-based (e.g., aluminum, magnesium, calcium compounds).

Mechanism of Action

• React with gastric acid to produce neutral salts or salts with low acidity, thereby:

  • Neutralizing stomach acid

  • Reducing destruction of the gastric mucosa (gut wall)

  • May also enhance mucosal protection by stimulating prostaglandin production

Effects on pH

• Except for sodium bicarbonate, antacids do not significantly alter systemic pH.

Therapeutic Uses

• Rapid relief of symptoms caused by excess stomach acid (e.g., heartburn, acid indigestion, sour stomach).

Adverse Effects

• Aluminum hydroxide → Constipation

• Magnesium hydroxide → Diarrhea

• Sodium-containing antacids → Sodium loading

Renal Considerations

• Use with caution in patients with renal impairment.

• Because antacids are metal-based, aluminum and magnesium can bioaccumulate in kidney disease.

Drug Interactions

Antacids decrease the effectiveness of medications that require an acidic environment, including:

• Cimetidine (Tagamet)

• Sucralfate (Carafate)

Nursing Considerations

• Assess kidney function before recommending frequent or long-term antacid use.

• Monitor for constipation or diarrhea depending on the type of antacid used.

• Be aware of sodium content in patients with conditions requiring sodium restriction.

Patient Teaching

• Antacids provide quick symptom relief by neutralizing acid already present; they do not reduce acid production.

• If you have kidney disease, consult your healthcare provider before using antacids because metal components can accumulate.

• Separate antacids from cimetidine and sucralfate because those medications require an acidic environment to work properly.

• Choose the type of antacid based on side effects:

  • Aluminum = Constipation

  • Magnesium = Diarrhea