Aspirin

Description

Aspirin is a nonsteroidal anti-inflammatory drug (NSAID) with the chemical name acetylsalicylic acid. Its molecular formula is C9H8O4, and it has a molecular weight of 180.16 g/mol. Aspirin is typically presented in tablet form for oral administration. The tablets are white, round, and may be coated to facilitate swallowing and enhance stability. Aspirin exhibits analgesic, antipyretic, and anti-inflammatory properties, making it a widely used medication for the relief of pain, reduction of fever, and management of inflammatory conditions.

Uses and Indications

This drug is indicated for the temporary relief of various types of pain and discomfort, including headache, toothache, muscle pain, menstrual pain, and minor pain associated with arthritis. Additionally, it is effective in alleviating pain and fever associated with colds.

There are no teratogenic or nonteratogenic effects mentioned in the available data.

Dosage and Administration

Patients should adhere strictly to the recommended dosage and administration guidelines. It is imperative not to exceed the directed dosage.

For adults and children aged 12 years and older, the recommended dosage is as follows: take 1 or 2 tablets every 4 hours, or 3 tablets every 6 hours. The total daily dosage must not exceed 12 tablets within a 24-hour period unless specifically directed by a healthcare professional.

Patients are advised to consume a full glass of water with each dose to ensure proper administration and absorption.

For children under 12 years of age, the use of this medication is not recommended unless directed by a healthcare provider.

Contraindications

Use of this product is contraindicated in individuals with a known allergy to aspirin or any other pain reliever or fever reducer. Additionally, it should not be used in patients who have a history of allergic reactions to this product or any of its components.

Warnings and Precautions

Children and teenagers who are experiencing or recovering from chickenpox or flu-like symptoms should not use this product due to the risk of Reye’s syndrome. If any changes in behavior accompanied by nausea and vomiting occur while using this product, it is imperative to consult a healthcare professional, as these symptoms may indicate the onset of this rare but serious illness.

Aspirin may provoke severe allergic reactions in some individuals. Symptoms of such reactions can include facial swelling, shock, hives, and asthma-related wheezing. Immediate medical attention should be sought if any of these symptoms occur.

This product contains a nonsteroidal anti-inflammatory drug (NSAID), which carries a risk of severe stomach bleeding. The likelihood of this adverse effect is increased in individuals who are 60 years of age or older, those taking anticoagulants or steroid medications, individuals using other NSAIDs (including aspirin, ibuprofen, or naproxen), and those with a history of stomach ulcers or bleeding disorders. Additionally, the risk is heightened for individuals consuming three or more alcoholic beverages daily while using this product or those who exceed the recommended dosage or duration of use.

Healthcare professionals should advise patients to consult a doctor prior to using this product if they have a history of asthma, stomach bleeding, or other gastrointestinal issues such as heartburn. Caution is also warranted for patients taking diuretics or those with high blood pressure, heart disease, liver cirrhosis, or kidney disease.

In the event of an accidental overdose, it is crucial to seek emergency medical assistance or contact a Poison Control Center immediately.

Patients should discontinue use and contact their healthcare provider if they experience any signs of an allergic reaction or symptoms indicative of stomach bleeding, which may include feeling faint, vomiting blood, passing bloody or black stools, or experiencing persistent stomach pain. Additional warning signs include ringing in the ears or hearing loss, worsening pain lasting more than 10 days, fever that persists or worsens beyond three days, visible redness or swelling, or the emergence of new symptoms, as these may signal a serious condition requiring medical evaluation.

Side Effects

Patients using this product may experience a range of adverse reactions, some of which can be serious.

Serious adverse reactions include the potential for Reye’s syndrome, particularly in children and teenagers who have or are recovering from chickenpox or flu-like symptoms. If patients exhibit changes in behavior accompanied by nausea and vomiting, they should consult a healthcare professional immediately, as these may be early signs of this rare but serious illness.

Allergic reactions to aspirin can also occur, which may manifest as severe symptoms including facial swelling, shock, hives, and asthma (wheezing). Patients experiencing any signs of an allergic reaction should seek medical attention promptly.

Additionally, this product contains a nonsteroidal anti-inflammatory drug (NSAID), which carries a risk of severe stomach bleeding. The likelihood of this adverse reaction is increased in patients who are 60 years of age or older, those taking blood thinners or steroid medications, individuals using other NSAIDs (including aspirin, ibuprofen, or naproxen), and patients with a history of stomach ulcers or bleeding problems. Consumption of three or more alcoholic drinks daily while using this product may further elevate this risk. Patients are advised to discontinue use and consult a doctor if they experience symptoms indicative of stomach bleeding, such as feeling faint, vomiting blood, having bloody or black stools, or persistent stomach pain.

Common adverse reactions may include ringing in the ears or loss of hearing, worsening pain lasting more than 10 days, fever that worsens or persists beyond three days, redness or swelling, and the emergence of new symptoms, which could indicate a serious condition.

Patients should also be cautious and consult a healthcare provider before using this product if they have asthma, a history of stomach problems (such as heartburn), or if they are taking diuretics, have high blood pressure, heart disease, liver cirrhosis, or kidney disease. Furthermore, it is advisable to seek guidance from a doctor or pharmacist if patients are currently taking prescription medications for gout, diabetes, or arthritis.

Drug Interactions

Patients taking anticoagulants or steroid medications may experience increased risk of bleeding or other adverse effects when combined with certain drugs. It is advisable to monitor for signs of bleeding and adjust dosages as necessary.

The concomitant use of nonsteroidal anti-inflammatory drugs (NSAIDs), including prescription and nonprescription options such as aspirin, ibuprofen, and naproxen, may enhance the risk of gastrointestinal irritation or bleeding. Caution is recommended, and monitoring for gastrointestinal symptoms is advised.

Diuretics may interact with other medications, potentially leading to alterations in fluid and electrolyte balance. Patients should be monitored for changes in blood pressure and electrolyte levels, and dosage adjustments may be required based on clinical response.

The use of prescription medications for gout, diabetes, or arthritis may also present interaction risks. It is essential to evaluate the therapeutic regimen for potential interactions and adjust dosages accordingly, ensuring close monitoring of the patient's clinical status.

No specific laboratory test interactions have been identified in the provided data.

Packaging & NDC

Below are the non-prescription pack sizes of Aspirin (aspirin 325 mg). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Pediatric Use

Pediatric patients, particularly those under 12 years of age, should not use this product unless directed by a healthcare professional. It is important to note that children and teenagers who have or are recovering from chickenpox or flu-like symptoms are at risk for Reye’s syndrome and should avoid this product.

In the event of behavioral changes accompanied by nausea and vomiting while using this product, it is crucial to consult a doctor, as these symptoms may indicate the onset of Reye's syndrome, a rare but serious condition.

For patients aged 12 years and older, the recommended dosage is 1 or 2 tablets every 4 hours or 3 tablets every 6 hours, with a maximum of 12 tablets in a 24-hour period unless otherwise directed by a healthcare provider.

Geriatric Use

Elderly patients, particularly those aged 60 and older, are at an increased risk for severe stomach bleeding. This heightened risk necessitates careful consideration when prescribing medications that may exacerbate this condition.

Healthcare providers should advise geriatric patients to consult with their physician if they have a history of stomach issues, such as heartburn, prior to initiating treatment. Monitoring for gastrointestinal symptoms is essential in this population to mitigate potential complications associated with stomach bleeding.

Pregnancy

Pregnant patients and those who are breastfeeding should consult a healthcare professional before using this medication. The use of aspirin during pregnancy, particularly at 20 weeks gestation or later, is associated with potential risks. Specifically, it may lead to adverse effects on the unborn child or complications during delivery. Therefore, it is crucial that pregnant patients only use aspirin under the guidance of a healthcare provider if deemed necessary.

Lactation

Lactating mothers are advised to consult a health professional before using this medication. It is particularly important to avoid the use of aspirin at 20 weeks of gestation or later, as it may pose risks to the unborn child or lead to complications during delivery. There is no specific data available regarding the excretion of this medication in breast milk or its effects on breastfed infants. Therefore, caution is recommended when considering its use during lactation.

Renal Impairment

Patients with renal impairment should consult a healthcare professional prior to use, particularly if they have comorbid conditions such as high blood pressure, heart disease, liver cirrhosis, or kidney disease. It is essential to assess renal function and consider potential dosing adjustments or monitoring requirements based on the degree of renal impairment.

Hepatic Impairment

Patients with hepatic impairment should consult a healthcare professional prior to use, particularly if they have conditions such as liver cirrhosis. It is essential to assess liver function and consider potential dosage adjustments or monitoring requirements based on the severity of hepatic impairment. Close monitoring of liver function tests may be warranted to ensure patient safety and therapeutic efficacy.

Overdosage

Overdosage of this product can lead to significant adverse effects. Healthcare professionals should be aware that symptoms associated with overdose may include nausea, vomiting, and abdominal pain.

In the event of an overdose, it is imperative to seek immediate medical attention. Additionally, contacting a Poison Control Center is strongly recommended to ensure appropriate management and intervention. Prompt action is crucial to mitigate potential harm and address any complications that may arise from the overdosage.

Nonclinical Toxicology

It is especially important not to use aspirin at 20 weeks or later in pregnancy unless definitely directed to do so by a doctor, as it may cause problems in the unborn child or complications during delivery. No specific non-teratogenic effects have been identified in the available data. Additionally, there are no details regarding nonclinical toxicology or animal pharmacology and toxicology provided in the text.

Postmarketing Experience

Postmarketing experience has revealed that aspirin may cause severe allergic reactions, which can manifest as facial swelling, shock, hives, and asthma (wheezing). Additionally, there have been reports of stomach bleeding associated with aspirin use, particularly in patients aged 60 years or older, those taking blood-thinning (anticoagulant) or steroid medications, individuals using other drugs containing prescription or nonprescription NSAIDs, patients with a history of stomach ulcers or bleeding problems, and those consuming three or more alcoholic drinks daily while using this product.

Signs of stomach bleeding reported in postmarketing experience include feeling faint, vomiting blood, having bloody or black stools, and experiencing persistent stomach pain. Other adverse reactions noted include tinnitus (ringing in the ears) or hearing loss, worsening pain lasting more than 10 days, worsening fever lasting more than 3 days, the presence of redness or swelling, and the occurrence of new symptoms.

Patient Counseling

Healthcare providers should advise patients to seek immediate medical assistance or contact a Poison Control Center in the event of an accidental overdose. It is crucial to inform patients that they should not use this product if they have a known allergy to aspirin or any other pain reliever or fever reducer. Additionally, patients should be cautioned against using the product if they have previously experienced an allergic reaction to it or any of its ingredients.

Patients must be instructed to discontinue use and consult a doctor if they experience any signs of an allergic reaction, and to seek medical help immediately in such cases. They should also be made aware of specific symptoms that warrant stopping the use of the product and consulting a healthcare professional, including:

• Feeling faint

• Vomiting blood

• Experiencing bloody or black stools

• Having stomach pain that does not improve

• Noticing ringing in the ears or experiencing a loss of hearing

• If pain worsens or lasts more than 10 days

• If fever worsens or lasts more than 3 days

• Observing redness or swelling

• The emergence of new symptoms, which could indicate a serious condition

Healthcare providers should encourage patients to consult a doctor before using the product if they have asthma or if the warning regarding stomach bleeding applies to them. It is also important to advise patients to seek medical advice if they have a history of stomach problems, such as heartburn, or if they are taking a diuretic. Furthermore, patients with high blood pressure, heart disease, liver cirrhosis, or kidney disease should be advised to consult a doctor prior to use.

Lastly, patients should be encouraged to speak with their doctor or pharmacist if they are taking prescription medications for gout, diabetes, or arthritis, as these may interact with the product.

Storage and Handling

The product is supplied with an expiration date indicated on the package. It should be stored at a controlled room temperature of 25°C (77°F). Temporary excursions are permissible between 15°C and 30°C (59°F and 86°F). Proper storage conditions are essential to maintain the integrity and efficacy of the product.

Additional Clinical Information

No further data are available.

Drug Information (PDF)

This file contains official product information for Aspirin, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)