Caduceus
Medication
Guide
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Find the best pain reliever for your symptoms

While many analgesics can be purchased without a prescription, not all are effective for every symptom. Side effects also vary and can put individuals with certain health conditions at risk.

Use the interactive quiz to find the appropriate medication for you and your symptoms.

Get a personalized recommendation
by taking the anonymous quiz.

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Differences between over-the-counter painkillers

Non-prescription analgesics fall into four main categories: Ibuprofen, Aspirin, Paracetamol, and Naproxen. Each of these medications has distinct characteristics. For example, Ibuprofen and Naproxen belong to the class of nonsteroidal anti-inflammatory drugs (NSAIDs) and are effective at reducing inflammation, while Paracetamol tends to have a lower risk of side effects and is ideal for children and during pregnancy. Keep in mind that many manufacturers use brand names, so always check the ingredients listed on the packaging. For a personalized recommendation, have a look at our interactive quiz.

Effectiveness and indications

ParacetamolIbuprofenNaproxenAspirin
FeverHighHighModerateModerate
HeadacheHighModerateModerateHigh
Menstrual crampsLowHighHighLow
InflammationLowHighHighModerate
Back painModerateHighHighModerate
Chronic painModerateModerateHighLow

Contraindications and side effects

ParacetamolIbuprofenNaproxenAspirin
Children < 15 yearsSafeSafeCautionHigh risk
Pregnancy (3rd trimester)SafeHigh riskHigh riskHigh risk
Gastric irritation/ulcersSafeCautionCautionHigh risk
Kidney diseaseCautionHigh riskHigh riskHigh risk
Cardiovascular eventsSafeHigh riskHigh riskCaution
Liver diseaseCautionCautionCautionCaution
Bleeding riskSafeCautionCautionHigh risk
Consequences of overdoseHigh riskCautionCautionHigh risk

When should I see a doctor?

While many types of pain can be managed with over-the-counter medications, certain situations require medical attention to identify or address underlying causes. You should see a doctor if you experience any of the following:

Persistent painMay signal an underlying condition that requires further evaluation or treatment
Severe painCan indicate a serious issue, such as nerve damage, infection, or organ dysfunction
Chest painCan be life-threatening and may indicate a heart attack
Abdominal painCould suggest appendicitis, gallstones, or other gastrointestinal problems
Pain after injuryMight indicate fractures, ligament tears, or internal damage that requires immediate care