Indomethacin 25mg Capsules

Manufacturer CAMBER Active Ingredient Indomethacin Capsules(in doe METH a sin) Pronunciation in doe METH a sin
WARNING: This drug may raise the risk of heart and blood vessel problems like heart attack and stroke. These effects can be deadly. The risk may be greater if you have heart disease or risks for heart disease. However, it can also be raised even if you do not have heart disease or risks for heart disease. The risk can happen within the first weeks of using this drug and may be greater with higher doses or long-term use. Do not use this drug right before or after bypass heart surgery.This drug may raise the chance of severe and sometimes deadly stomach or bowel problems like ulcers or bleeding. The risk is greater in older people, and in people who have had stomach or bowel ulcers or bleeding before. These problems may occur without warning signs. @ COMMON USES: It is used to treat some types of arthritis.It is used to treat ankylosing spondylitis.It is used to manage pain.It may be given to you for other reasons. Talk with the doctor.
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Drug Class
Nonsteroidal Anti-inflammatory Drug (NSAID)
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Pharmacologic Class
Cyclooxygenase (COX) Inhibitor
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Pregnancy Category
Not available (FDA changed to Risk Summary; avoid in 3rd trimester)
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FDA Approved
Jan 1965
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Indomethacin is a medicine called a nonsteroidal anti-inflammatory drug (NSAID). It works by reducing substances in the body that cause pain, fever, and inflammation (swelling and redness). It is used to treat moderate to severe pain, swelling, and stiffness caused by conditions like arthritis, gout, and bursitis.
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How to Use This Medicine

Taking Your Medication

To use this medication correctly, follow your doctor's instructions and read all the information provided. Take your medication with food to help prevent stomach upset, and swallow it with a full glass of water.

Storing and Disposing of Your Medication

Keep your medication at room temperature, away from light and moisture. Avoid storing it in a bathroom. Store all medications in a safe location, out of the reach of children and pets. When you're finished with your medication or it expires, dispose of it properly. Do not flush it down the toilet or pour it down the drain unless instructed to do so. If you're unsure about how to dispose of your medication, consult your pharmacist. You may also want to check if there are any drug take-back programs in your area.

Missing a Dose

If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next dose, skip the missed dose and resume your regular schedule. Do not take two doses at the same time or take extra doses to make up for a missed one.
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Lifestyle & Tips

  • Take with food, milk, or an antacid to reduce stomach upset.
  • Do not lie down for at least 10 minutes after taking to prevent esophageal irritation.
  • Avoid alcohol, as it can increase the risk of stomach bleeding.
  • Do not take other NSAIDs (like ibuprofen or naproxen) concurrently without consulting your doctor.
  • Stay well-hydrated, especially if you have kidney problems.

Dosing & Administration

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Adult Dosing

Standard Dose: 25 mg 2-3 times daily
Dose Range: 25 - 200 mg

Condition-Specific Dosing:

moderate to severe rheumatoid arthritis, osteoarthritis, ankylosing spondylitis: 25 mg 2-3 times daily, may increase by 25-50 mg/day weekly up to 150-200 mg/day in divided doses.
acute gouty arthritis: 50 mg 3 times daily until pain is tolerable, then rapidly reduce dose.
acute painful shoulder (bursitis/tendinitis): 75-150 mg/day in 3-4 divided doses for 7-14 days.
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Pediatric Dosing

Neonatal: Not established for general pain/inflammation; used for patent ductus arteriosus (PDA) closure (IV formulation).
Infant: Not established
Child: Not established
Adolescent: Not established (safety and efficacy not established for general use; adult dosing may be considered for specific conditions under specialist supervision, but generally avoided).
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Dose Adjustments

Renal Impairment:

Mild: Use with caution; monitor renal function.
Moderate: Use with caution; consider lower doses and monitor renal function closely.
Severe: Contraindicated (CrCl < 30 mL/min) due to risk of renal failure.
Dialysis: Not significantly removed by hemodialysis; contraindicated in severe renal impairment.

Hepatic Impairment:

Mild: Use with caution; monitor liver function.
Moderate: Use with caution; monitor liver function closely; consider lower doses.
Severe: Use with caution; monitor liver function closely; consider lower doses. Not specifically contraindicated but increased risk of adverse effects.

Pharmacology

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Mechanism of Action

Indomethacin is a nonsteroidal anti-inflammatory drug (NSAID) that exhibits anti-inflammatory, analgesic, and antipyretic activities. Its primary mechanism of action is the inhibition of prostaglandin synthesis, largely through the inhibition of cyclooxygenase (COX-1 and COX-2) enzymes. This reduces the formation of prostaglandin precursors, which are involved in inflammation, pain, and fever.
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Pharmacokinetics

Absorption:

Bioavailability: Approximately 90-100%
Tmax: 1-2 hours (capsules)
FoodEffect: Food may delay absorption but does not significantly affect the extent of absorption. Taking with food or milk may reduce GI upset.

Distribution:

Vd: 0.34-1.57 L/kg
ProteinBinding: >90% (primarily to albumin)
CnssPenetration: Limited, but sufficient to cause CNS side effects (e.g., headache, dizziness).

Elimination:

HalfLife: 4.5 hours (range 2.6-11.2 hours)
Clearance: Not available (variable)
ExcretionRoute: Approximately 60% via urine (as metabolites and unchanged drug) and 33% via feces (as metabolites and unchanged drug).
Unchanged: Approximately 10-20% in urine, 1.5% in feces.
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Pharmacodynamics

OnsetOfAction: Within 30 minutes (analgesic effect), several days to weeks for full anti-inflammatory effect.
PeakEffect: 1-2 hours (analgesic), 1-2 weeks (anti-inflammatory).
DurationOfAction: 4-6 hours (analgesic).

Safety & Warnings

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BLACK BOX WARNING

CARDIOVASCULAR THROMBOTIC EVENTS: NSAIDs, including indomethacin, cause an increased risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke, which can be fatal. This risk may occur early in treatment and may increase with duration of use. Indomethacin is contraindicated in the setting of coronary artery bypass graft (CABG) surgery. GASTROINTESTINAL RISK: NSAIDs, including indomethacin, cause an increased risk of serious gastrointestinal adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly patients and patients with a prior history of peptic ulcer disease and/or GI bleeding are at greater risk for serious GI events.
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Side Effects

Urgent Side Effects: Seek Medical Help Right Away

Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you experience any of the following symptoms, contact your doctor or seek medical attention immediately:

Allergic Reaction: Rash, hives, itching, red, swollen, blistered, or peeling skin with or without fever, wheezing, tightness in the chest or throat, trouble breathing, swallowing, or talking, unusual hoarseness, or swelling of the mouth, face, lips, tongue, or throat.
Bleeding: Vomiting or coughing up blood, vomit that resembles coffee grounds, blood in the urine, black, red, or tarry stools, bleeding from the gums, abnormal vaginal bleeding, unexplained bruises or bruises that enlarge, or uncontrollable bleeding.
Kidney Problems: Inability to urinate, changes in urine output, blood in the urine, or sudden weight gain.
High Potassium Levels: Abnormal heartbeat, confusion, weakness, lightheadedness, dizziness, feeling faint, numbness or tingling, or shortness of breath.
High Blood Pressure: Severe headache or dizziness, fainting, or changes in vision.
Respiratory Issues: Shortness of breath, sudden weight gain, or swelling in the arms or legs.
Cardiovascular Issues: Chest pain or pressure.
Neurological Issues: Weakness on one side of the body, speech or thinking difficulties, balance changes, drooping on one side of the face, or blurred vision.
Vision Changes: Changes in eyesight.
Other Symptoms: Ringing in the ears, depression, flu-like symptoms.
Liver Problems: Dark urine, fatigue, decreased appetite, stomach pain or upset, light-colored stools, vomiting, or yellow skin and eyes. Liver problems can be life-threatening, so seek medical help immediately if you experience any of these symptoms.
Severe Skin Reactions: These can include Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and other serious reactions, which can affect internal organs and be life-threatening. Seek medical help immediately if you experience red, swollen, blistered, or peeling skin; red or irritated eyes; sores in your mouth, throat, nose, eyes, genitals, or skin; fever; chills; body aches; shortness of breath; or swollen glands.

Other Possible Side Effects

While many people may not experience side effects or may only have mild side effects, it's essential to be aware of the following:

Headache
Constipation, diarrhea, stomach pain, upset stomach, or vomiting
Heartburn
Gas
* Dizziness, drowsiness, fatigue, or weakness

If any of these side effects or other symptoms bother you or persist, contact your doctor or seek medical attention.

Reporting Side Effects

If you have questions or concerns about side effects, contact your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
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Seek Immediate Medical Attention If You Experience:

  • Severe stomach pain, black or tarry stools, vomiting blood or material that looks like coffee grounds (signs of stomach bleeding)
  • Chest pain, shortness of breath, sudden weakness or numbness on one side of the body, slurred speech (signs of heart attack or stroke)
  • Swelling in your hands or feet, unexplained weight gain, decreased urination (signs of kidney problems)
  • Yellowing of the skin or eyes, dark urine, persistent nausea or vomiting, unusual tiredness (signs of liver problems)
  • Skin rash, hives, itching, difficulty breathing or swallowing, swelling of the face/lips/tongue/throat (signs of allergic reaction)
  • Unusual bruising or bleeding
  • Severe or persistent headache, dizziness, confusion
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Before Using This Medicine

Before Taking This Medication: Important Information to Share with Your Doctor

It is crucial to inform your doctor about the following:

Any allergies you have, including allergies to this drug, its components, or other substances, such as foods or medications. Describe the allergic reaction and its symptoms.
Allergies to aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen.
A history of asthma triggered by salicylate drugs, such as aspirin, or NSAIDs.
Existing health conditions, including:
+ Dehydration
+ Gastrointestinal (GI) bleeding
+ Heart failure (weak heart)
+ Kidney disease
+ Liver disease
Recent heart attack.
Current use of other NSAIDs, salicylate drugs (e.g., aspirin or diflunisal), triamterene, or pemetrexed.
Fertility issues or ongoing fertility evaluation.
Pregnancy, planned pregnancy, or pregnancy during treatment with this medication. This drug may harm an unborn baby if taken after 20 weeks of pregnancy. If you are between 20 and 30 weeks pregnant, only take this medication under your doctor's guidance. Do not take this medication if you are more than 30 weeks pregnant.

To ensure safe treatment, it is essential to disclose all your medications (prescription, over-the-counter, natural products, and vitamins) and health issues to your doctor and pharmacist. Verify that it is safe to take this medication with your other medications and health conditions. Never start, stop, or adjust the dosage of any medication without consulting your doctor.
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Precautions & Cautions

It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication. Adhere strictly to the dosage instructions provided by your doctor, as taking more than prescribed may increase your risk of experiencing severe side effects. Do not exceed the recommended treatment duration without consulting your doctor.

Until you understand how this medication affects you, avoid driving and other activities that require alertness. Be aware that you may experience easier bleeding, so it is crucial to be cautious and avoid injuries. To minimize the risk of bleeding, use a soft toothbrush and an electric razor for shaving.

This medication may interfere with certain laboratory tests, so it is vital to inform all your healthcare providers and laboratory personnel that you are taking this drug. Before consuming alcohol, discuss the potential risks with your doctor. If you smoke, consult with your doctor about the possible implications. Long-term use of this medication may require regular blood tests, so discuss this with your doctor.

There is a potential risk of developing high blood pressure with this type of medication. Ensure that your blood pressure is monitored as advised by your doctor. If you have asthma, consult with your doctor, as you may be more sensitive to this medication.

The use of drugs like this one may increase the risk of heart failure. If you already have heart failure, the risk of heart attack, hospitalization for heart failure, and death may be higher. Discuss these risks with your doctor. Additionally, people taking this type of medication after a recent heart attack may have a higher risk of heart attack and heart-related death. There is also an increased risk of death in the year following a first heart attack compared to those not taking this medication. Consult with your doctor about these risks.

If you are taking aspirin to prevent heart attacks, discuss the potential interactions with your doctor. This medication may worsen depression, mood problems, seizures, and conditions like Parkinson's disease. Inform your doctor if you have any of these conditions and if your symptoms deteriorate.

If you are 65 years or older, use this medication with caution, as you may be more susceptible to side effects. NSAIDs like this medication may affect ovulation, potentially impacting fertility. However, this effect is reversible when the medication is stopped. Discuss this with your doctor if you are planning to conceive.

Finally, if you are breastfeeding, consult with your doctor to discuss the potential risks to your baby.
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Overdose Information

Overdose Symptoms:

  • Nausea
  • Vomiting
  • Stomach pain
  • Lethargy
  • Drowsiness
  • Headache
  • Dizziness
  • Disorientation
  • Convulsions
  • Coma (rare)
  • Acute renal failure (rare)
  • GI bleeding (rare)

What to Do:

Seek immediate medical attention. Call 911 or Poison Control at 1-800-222-1222. Treatment is supportive and symptomatic. May involve gastric lavage, activated charcoal, and monitoring of vital signs and renal function.

Drug Interactions

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Contraindicated Interactions

  • Coronary Artery Bypass Graft (CABG) surgery (peri-operative pain)
  • History of asthma, urticaria, or other allergic-type reactions after aspirin or other NSAIDs
  • Severe renal impairment (CrCl < 30 mL/min)
  • Active gastrointestinal bleeding or ulceration
  • Late pregnancy (third trimester)
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Major Interactions

  • Anticoagulants (e.g., warfarin, heparin): Increased risk of bleeding.
  • Antiplatelet agents (e.g., aspirin, clopidogrel): Increased risk of bleeding.
  • Corticosteroids: Increased risk of GI ulceration and bleeding.
  • Lithium: Increased lithium plasma concentrations and toxicity.
  • Methotrexate: Increased methotrexate plasma concentrations and toxicity.
  • Cyclosporine: Increased nephrotoxicity.
  • Diuretics (e.g., furosemide, thiazides): Reduced diuretic and antihypertensive effects, increased risk of renal impairment.
  • ACE inhibitors/ARBs: Reduced antihypertensive effect, increased risk of renal impairment.
  • SSRIs/SNRIs: Increased risk of GI bleeding.
  • Digoxin: Increased digoxin plasma concentrations.
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Moderate Interactions

  • Beta-blockers: Reduced antihypertensive effect.
  • Hydralazine: Reduced antihypertensive effect.
  • Probenecid: Increased indomethacin plasma concentrations and half-life.
  • Triamterene: Increased risk of renal failure.
  • Potassium-sparing diuretics: Increased risk of hyperkalemia.
  • Phenytoin: Possible increased phenytoin levels.
  • Oral hypoglycemics: Possible potentiation of hypoglycemic effect.
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Minor Interactions

  • Antacids: May delay absorption but not significantly affect extent.
  • Cholestyramine: May reduce absorption.

Monitoring

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Baseline Monitoring

Complete Blood Count (CBC)

Rationale: To assess for anemia, leukopenia, or thrombocytopenia, which can be adverse effects of NSAIDs.

Timing: Prior to initiation.

Renal Function (BUN, Creatinine, eGFR)

Rationale: To assess baseline kidney function, as NSAIDs can cause renal impairment.

Timing: Prior to initiation.

Liver Function Tests (ALT, AST, Bilirubin)

Rationale: To assess baseline liver function, as NSAIDs can cause liver enzyme elevations or rare liver injury.

Timing: Prior to initiation.

Blood Pressure

Rationale: NSAIDs can cause new onset hypertension or worsen pre-existing hypertension.

Timing: Prior to initiation.

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Routine Monitoring

Renal Function (BUN, Creatinine, eGFR)

Frequency: Periodically, especially in patients with risk factors for renal impairment (e.g., elderly, heart failure, diuretic use) or on long-term therapy.

Target: Within normal limits or stable from baseline.

Action Threshold: Significant increase in creatinine (>20% from baseline) or decrease in eGFR; consider dose reduction or discontinuation.

Liver Function Tests (ALT, AST)

Frequency: Periodically, especially in patients on long-term therapy.

Target: Within normal limits or stable from baseline.

Action Threshold: Significant elevation (e.g., >3x ULN); consider discontinuation.

Blood Pressure

Frequency: Regularly, especially in hypertensive patients.

Target: Individualized target.

Action Threshold: Sustained elevation; consider antihypertensive adjustment or NSAID discontinuation.

Complete Blood Count (CBC)

Frequency: Periodically for long-term therapy (e.g., annually or as clinically indicated).

Target: Within normal limits.

Action Threshold: Significant changes (e.g., unexplained anemia, leukopenia, thrombocytopenia); investigate and consider discontinuation.

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Symptom Monitoring

  • Signs of gastrointestinal bleeding (black, tarry stools; coffee-ground vomit; severe abdominal pain)
  • Symptoms of cardiovascular events (chest pain, shortness of breath, weakness on one side of the body, slurred speech)
  • Signs of renal dysfunction (decreased urine output, swelling in ankles/feet, unusual fatigue)
  • Symptoms of liver injury (yellowing of skin/eyes, dark urine, persistent nausea/vomiting, unusual fatigue)
  • Signs of allergic reaction (rash, itching, hives, swelling of face/lips/tongue/throat, difficulty breathing)
  • Unusual bruising or bleeding
  • Severe or persistent headache, dizziness, confusion

Special Patient Groups

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Pregnancy

Avoid use in the third trimester of pregnancy due to the risk of premature closure of the fetal ductus arteriosus and persistent pulmonary hypertension in the newborn. Use in the first and second trimesters should only be if the potential benefit justifies the potential risk to the fetus, and at the lowest effective dose for the shortest possible duration.

Trimester-Specific Risks:

First Trimester: Limited data, but potential for increased risk of miscarriage and cardiac malformations (though evidence is conflicting and not definitively established for all NSAIDs).
Second Trimester: Potential for oligohydramnios and fetal renal dysfunction, especially with prolonged use. Monitor amniotic fluid volume.
Third Trimester: Contraindicated due to significant risk of premature closure of the fetal ductus arteriosus, leading to pulmonary hypertension in the newborn, and potential for renal dysfunction in the fetus.
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Lactation

Indomethacin is excreted into breast milk in small amounts. While the amount is generally low, there is a potential for adverse effects in the infant (e.g., CNS effects, GI bleeding). Other NSAIDs with shorter half-lives or lower milk transfer may be preferred. Use with caution, monitor infant for adverse effects.

Infant Risk: L3 (Moderate risk - limited controlled studies in women; non-life-threatening adverse effects possible).
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Pediatric Use

Safety and efficacy for general pain and inflammation in pediatric patients (other than for PDA closure in neonates with IV formulation) have not been established. Use is generally not recommended due to potential for serious adverse effects, including CNS effects and GI bleeding. If used, it should be under strict specialist supervision.

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Geriatric Use

Elderly patients are at increased risk for serious adverse reactions to NSAIDs, including gastrointestinal bleeding, ulceration, and perforation, as well as renal impairment and cardiovascular events. Use the lowest effective dose for the shortest duration possible. Monitor closely for adverse effects, especially renal function and GI symptoms.

Clinical Information

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Clinical Pearls

  • Indomethacin is a potent NSAID often reserved for conditions unresponsive to less potent NSAIDs due to its higher incidence of CNS and GI side effects.
  • It is particularly effective for acute gouty arthritis due to its rapid onset and potent anti-inflammatory action.
  • Always advise patients to take indomethacin with food, milk, or antacids to minimize GI irritation.
  • Patients should be advised to remain upright for at least 10-15 minutes after taking the capsule to prevent esophageal irritation.
  • Due to its potential for CNS side effects (e.g., headache, dizziness, confusion), caution patients about driving or operating machinery until they know how the drug affects them.
  • Regular monitoring of blood pressure, renal function, and liver function is crucial, especially in elderly patients or those on long-term therapy.
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Alternative Therapies

  • Other NSAIDs (e.g., ibuprofen, naproxen, celecoxib, diclofenac)
  • Acetaminophen (for pain and fever, no anti-inflammatory effect)
  • Corticosteroids (for severe inflammation, short-term use)
  • Colchicine (for acute gout)
  • Allopurinol/Febuxostat (for chronic gout management)
  • Disease-modifying antirheumatic drugs (DMARDs) for chronic inflammatory conditions (e.g., methotrexate, biologics)
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Cost & Coverage

Average Cost: $15 - $50 per 30 capsules (25mg)
Generic Available: Yes
Insurance Coverage: Tier 1 or Tier 2 (Generic)
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General Drug Facts

If your symptoms or health issues persist or worsen, it is essential to contact your doctor promptly. To ensure safe use, never share your medication with others or take someone else's medication. This medication is accompanied by a Medication Guide, which provides crucial information for patients. Please read this guide carefully and review it again whenever you receive a refill of this medication. If you have any questions or concerns about this medication, consult your doctor, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately call your local poison control center or seek emergency medical attention. When reporting the incident, be prepared to provide details about the medication taken, the amount, and the time it occurred.