EXCEDRIN®
Acetaminophen, Aspirin, and Caffeine — Film-Coated Tablets
1- Disclaimer
This information is intended for general educational and informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified physician or pharmacist before starting, stopping, or changing any medication, and read the manufacturer's approved leaflet supplied with the product.
We do not guarantee the accuracy, currency or completeness of information regarding medications or medical products, and official sources should be verified before making any decisions. Readers are responsible for independently verifying the information before relying on it.
Self-medication carries risks, particularly in pregnant or breastfeeding women, children, the elderly, and patients with chronic diseases. In case of emergency, overdose, or a serious adverse reaction, seek immediate medical attention or contact the nearest poison control center.
2- Summary
Excedrin® is an over-the-counter (OTC) fixed-dose combination analgesic that pairs two pain relievers (acetaminophen and aspirin) with caffeine as an analgesic adjuvant. It is indicated for the temporary relief of mild-to-moderate pain, including headache, migraine, tension-type headache, muscular aches, menstrual cramps, toothache, and minor arthritic pain. The three ingredients act through distinct but complementary mechanisms, and caffeine has been shown to enhance the analgesic effect of the two pain relievers.
3- Brand Name
Excedrin® (marketed in the Egyptian market as Excedrin film-coated tablets, packs of 10 and 20 tablets).
4- Category
- Therapeutic class: Non-opioid analgesic / antipyretic (fixed-dose combination).
- Pharmacological class: Para-aminophenol derivative (acetaminophen) + Non-steroidal anti-inflammatory drug / salicylate (aspirin) + Methylxanthine CNS stimulant (caffeine).
- Legal status in Egypt: Over-the-counter (OTC).
5- Active Ingredient
Each film-coated tablet contains:
- Acetaminophen (Paracetamol) .......... 250 mg
- Aspirin (Acetylsalicylic acid) ........... 250 mg
- Caffeine (Anhydrous) ..................... 65 mg
6- Pharmaceutical Form & Strength
Oral film-coated tablets, 250 mg / 250 mg / 65 mg.
7- Manufacturer & Marketing Authorization Holder
Historically produced by SmithKline Beecham Egypt LLC for Novartis Pharma Egypt, under license from Novartis Consumer Health, Switzerland. Globally, the Excedrin® trademark passed through GlaxoSmithKline (GSK) Consumer Healthcare and, since July 2022, is owned and marketed by Haleon, the consumer-health company spun off from GSK. In Egypt, the product has continued to be distributed under the SmithKline Beecham / GlaxoSmithKline manufacturing chain; the label on any given pack (packs of 10 or 20 tablets) should be consulted for the current Marketing Authorization Holder.
8- Mechanism of Action
The combined analgesic effect results from the additive and synergistic actions of three components with different mechanisms:
- Acetaminophen: Acts mainly centrally by inhibiting prostaglandin synthesis in the central nervous system (thought to involve central COX inhibition and possibly a COX-3 variant), producing analgesic and antipyretic effects with little peripheral anti-inflammatory activity.
- Aspirin (Acetylsalicylic acid): Irreversibly inhibits cyclooxygenase enzymes (COX-1 and COX-2), reducing the synthesis of prostaglandins and thromboxane A₂, thereby providing analgesic, antipyretic, anti-inflammatory, and antiplatelet effects.
- Caffeine: A non-selective adenosine (A1, A2A) receptor antagonist that acts as a CNS stimulant and mild cranial vasoconstrictor. It enhances the analgesic effect of acetaminophen and aspirin (reported to increase their potency by approximately 40%) and accelerates their absorption.
9- Spectrum of Activity
Not an antimicrobial drug; the term "spectrum" does not apply in the microbiological sense. Its clinical spectrum of activity covers:
- Mild-to-moderate somatic pain (musculoskeletal, dental, menstrual).
- Primary headaches: tension-type headache and acute migraine attacks (with or without aura).
- Fever reduction associated with common colds and flu-like illnesses.
10- Pharmacokinetics
- Absorption: All three components are rapidly absorbed from the gastrointestinal tract after oral administration; onset of analgesia typically occurs within 30 minutes.
- Peak plasma concentration (Tmax): Acetaminophen ≈ 0.5–2 h; Aspirin (as salicylate) ≈ 1–2 h; Caffeine ≈ 0.5–1 h. Caffeine also accelerates the absorption of acetaminophen.
- Distribution: All three cross the placenta and are excreted in breast milk. Plasma protein binding: acetaminophen 10–25%, salicylate 80–90%, caffeine 30–40%.
- Metabolism: Predominantly hepatic. Acetaminophen is conjugated (glucuronidation/sulfation) with a minor CYP2E1 pathway producing the toxic metabolite NAPQI. Aspirin is hydrolyzed to salicylic acid, then conjugated. Caffeine is metabolized mainly by CYP1A2.
- Elimination: Mainly renal, as metabolites. Elimination half-lives: acetaminophen ≈ 2–3 h; salicylate 2–3 h at analgesic doses (dose-dependent, longer at higher doses); caffeine 3–5 h in healthy adults (prolonged in pregnancy, liver disease, and neonates).
11- Indications
For the temporary relief of pain associated with:
- Headache and migraine headache.
- Sinusitis and common cold.
- Tension-type headache.
- Muscular aches.
- Premenstrual and menstrual cramps.
- Toothache and pain after minor dental procedures.
- Minor pain from arthritis.
12- Administration
- Adults and children ≥ 12 years: 2 tablets with a full glass of water every 6 hours as needed, while symptoms persist. Do not exceed 8 tablets in 24 hours, unless directed by a doctor.
- Children under 12 years: Do not use unless prescribed by a physician (risk of Reye's syndrome with aspirin).
- Preferably taken with food or milk to reduce gastric irritation.
- Do not use with other products containing acetaminophen, aspirin, or other NSAIDs, and limit additional caffeine intake.
13- Method of Preparation
No preparation is required by the patient. The product is supplied as ready-to-use oral film-coated tablets; swallow whole with a glass of water. Do not crush or chew unless advised by a healthcare professional.
14- Contraindications
Do not use if the patient has any of the following:
- Known hypersensitivity to acetaminophen, aspirin, other salicylates, NSAIDs, caffeine, or any excipient.
- Active peptic ulcer disease, gastrointestinal bleeding, or a history of aspirin/NSAID-induced GI bleeding.
- Severe hepatic impairment or active liver disease.
- Severe renal impairment.
- Bleeding disorders (e.g., hemophilia) or patients on anticoagulant therapy without medical supervision.
- Aspirin-exacerbated respiratory disease (asthma, nasal polyps, and reaction to aspirin/NSAIDs).
- Children and adolescents under 12 years, especially during viral illnesses (chickenpox, influenza) — risk of Reye's syndrome.
- Third trimester of pregnancy (aspirin).
15- Warnings & Precautions
- If you are pregnant or breastfeeding, consult a healthcare professional before use. Aspirin should not be used during the last three months of pregnancy unless specifically directed by a doctor.
- Consult a doctor if pain persists for more than 10 days, or fever persists for more than 3 days.
- Use with caution in patients with asthma, hypertension, heart disease, kidney disease, or those taking diuretics, anticoagulants, or medication for diabetes, gout, or arthritis.
- Contains an NSAID (aspirin), which may increase the risk of serious gastrointestinal adverse events including bleeding and ulceration, particularly in elderly patients, patients with a history of ulcers or bleeding, or those taking other NSAIDs, corticosteroids, anticoagulants, or ≥3 alcoholic drinks daily, or those taking the product longer than directed.
- May increase bleeding tendency during and after surgical or dental procedures due to the antiplatelet effect of aspirin; discontinue in advance under medical guidance when appropriate.
- Liver warning: Contains acetaminophen, which may cause severe liver damage if more than 8 tablets are taken in 24 hours, if taken with other acetaminophen-containing products, or if combined with regular alcohol consumption.
- If ringing in the ears or hearing loss occurs, stop use and consult a doctor (possible salicylate toxicity).
- Caffeine warning: The recommended dose contains about as much caffeine as a cup of coffee. Limit additional caffeine-containing foods, beverages, or medicines, as excess caffeine may cause nervousness, irritability, sleeplessness, and occasionally rapid heartbeat.
- Keep out of reach of children.
16- Drug Interactions
- Anticoagulants (warfarin, DOACs) and antiplatelet agents: Increased risk of bleeding.
- Other NSAIDs or salicylates: Additive GI toxicity and bleeding risk.
- Corticosteroids: Increased risk of GI ulceration and bleeding.
- Methotrexate: Aspirin may increase methotrexate toxicity.
- Oral hypoglycemics (sulfonylureas) and insulin: Aspirin may enhance hypoglycemic effect.
- Antihypertensives, ACE inhibitors, diuretics: NSAID component may reduce efficacy.
- Uricosurics (probenecid, sulfinpyrazone): Aspirin antagonizes their effect; may precipitate gout attacks.
- Alcohol: Increases risk of hepatotoxicity (acetaminophen) and GI bleeding (aspirin).
- CYP1A2 inhibitors (e.g., ciprofloxacin, fluvoxamine, oral contraceptives): Increase caffeine plasma levels and side effects.
- Lithium: Aspirin may increase lithium plasma concentrations.
- Ergot alkaloids, MAO inhibitors, sympathomimetics, theophylline: Additive CNS/cardiovascular stimulation with caffeine.
- Isoniazid and other hepatotoxic drugs: Increased risk of acetaminophen-induced hepatotoxicity.
17- Side Effects
Generally well tolerated at recommended doses. Reported adverse effects include:
- Common: Nausea, dyspepsia, abdominal discomfort, heartburn, nervousness, insomnia, palpitations, dizziness.
- Less common: Skin rash, urticaria, tinnitus, increased blood pressure.
- Rare / Serious: Gastrointestinal ulceration and bleeding, hypersensitivity reactions (including bronchospasm and angioedema), severe skin reactions (Stevens–Johnson syndrome, toxic epidermal necrolysis, acute generalized exanthematous pustulosis), hepatotoxicity (acetaminophen), nephrotoxicity, thrombocytopenia, Reye's syndrome (children/adolescents with viral illness).
- With chronic overuse: Analgesic nephropathy, medication-overuse headache, iron-deficiency anemia from occult GI blood loss, caffeine dependence.
Any severe or persistent adverse reaction should be reported to a physician promptly.
18- Use in Special Populations
- Pregnancy: Not recommended, particularly during the third trimester due to the aspirin component (risk of premature closure of the ductus arteriosus, maternal and neonatal bleeding, and delayed labor). Use only if clearly needed and under medical supervision.
- Breastfeeding: Small amounts of all three components pass into breast milk. Occasional low doses are generally considered compatible, but regular use is not recommended; avoid full-dose aspirin during nursing.
- Pediatrics (< 12 years): Contraindicated for OTC use because of the risk of Reye's syndrome associated with aspirin in children with viral infections.
- Elderly: Increased risk of GI bleeding, renal impairment, and CNS effects; use the lowest effective dose for the shortest duration.
- Hepatic impairment: Reduce the dose or avoid; risk of acetaminophen hepatotoxicity.
- Renal impairment: Use with caution; avoid in severe renal impairment.
- Patients with cardiovascular disease, hypertension, or arrhythmias: Caffeine and aspirin components require medical supervision.
19- Storage Conditions
- Store below 30 °C in a dry place, protected from light and moisture.
- Keep in the original packaging until use.
- Keep out of the sight and reach of children.
- Do not use after the expiry date printed on the pack. Dispose of unused or expired medication according to local regulations.
20- Additional Sections
- Pack size in the Egyptian market: Box of 10 or 20 film-coated tablets.
- Onset & duration of action: Analgesic effect usually begins within 15–30 minutes and lasts approximately 4–6 hours.
- Driving and operating machinery: Generally does not impair the ability to drive, but caffeine-related nervousness or, in some individuals, drowsiness or dizziness should be considered.
- Overdose management: In case of an overdose, seek professional medical help immediately, even if the patient feels well. Prompt treatment is critical because delayed acetaminophen hepatotoxicity may occur; N-acetylcysteine is the specific antidote for acetaminophen poisoning. Aspirin overdose may cause tinnitus, hyperventilation, metabolic acidosis, and CNS disturbances; caffeine overdose may cause tachyarrhythmias, agitation, and seizures.
- Lifestyle advice: Avoid alcohol during treatment; maintain adequate hydration; do not combine with other acetaminophen-, aspirin-, or NSAID-containing products.
21- Frequently Asked Questions (FAQ)
Q1: Can I take Excedrin® for a migraine attack?
Yes. The combination of acetaminophen, aspirin, and caffeine is recognized as safe and effective for acute migraine and tension-type headaches in adults.
Q2: How long does it take to work?
Analgesic effect usually starts within 15–30 minutes and reaches peak effect within 1–2 hours.
Q3: Can I take it with coffee?
It is best to limit additional caffeine intake, since each dose already contains caffeine roughly equivalent to a cup of coffee; excess caffeine may cause nervousness, insomnia, or palpitations.
Q4: Is it safe during pregnancy?
Not recommended, particularly during the third trimester. Consult a physician; acetaminophen alone is generally preferred when a pain reliever is needed during pregnancy.
Q5: Can children take it?
No. It is contraindicated in children and adolescents under 12 years due to the risk of Reye's syndrome from aspirin.
Q6: Can it be taken on an empty stomach?
It is preferable to take it with food or a full glass of water to reduce gastric irritation caused by aspirin.
Q7: What should I do if I miss a dose?
This medication is used as needed for pain, not on a fixed schedule; simply take it when symptoms recur, respecting the 6-hour interval and the maximum daily dose (8 tablets/24 h).
Q8: Can I use it before surgery or dental extraction?
No, unless approved by the physician or dentist, because aspirin increases bleeding risk. Discontinue several days before elective procedures as advised.
Q9: Is it addictive?
It does not cause classical addiction, but chronic daily use can lead to medication-overuse headache and mild caffeine dependence.
22- References
- Acetaminophen/Aspirin/Caffeine — StatPearls, National Center for Biotechnology Information (NCBI), NIH Bookshelf. Available at: https://www.ncbi.nlm.nih.gov/books/NBK513274/
- Excedrin — Uses, Dosage & Side Effects, Drugs.com. Available at: https://www.drugs.com/excedrin.html
- FDA Approved Labeling — Excedrin (Acetaminophen, Aspirin, Caffeine), U.S. Food and Drug Administration. Available at: https://www.accessdata.fda.gov/drugsatfda_docs/label/2017/020802s031lbl.pdf
- Acetaminophen; Aspirin; Caffeine — PubChem, U.S. National Library of Medicine. Available at: https://pubchem.ncbi.nlm.nih.gov/
- Excedrin — Medscape Reference. Available at: https://reference.medscape.com/
- Haleon — Our Brands (Excedrin). Available at: https://www.haleon.com/our-brands
- GSK Egypt — Manufacturing and product information. Available at: https://www.gsk.com/en-gb/locations/egypt/
- Approved product leaflet supplied with Excedrin® film-coated tablets (Egyptian market), SmithKline Beecham Egypt / GlaxoSmithKline.