clopidogrel vs morphine
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Side-by-side comparison of clopidogrel and morphine. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
Consider the use of a parenteral antiplatelet agent in acute coronary syndrome patients requiring coadministration of morphine or other opioid agonists.
Plavix
MS Contin, Kadian
Clopidogrel is a drug that helps to prevent blood clots. It is used to lower your risk of heart attack and stroke.
Morphine is a strong pain medicine. It is used to treat severe pain that needs an opioid medicine when other treatments don't work well enough.
Clopidogrel is used to prevent heart attack and stroke in adults. It is for people who have had a recent heart attack or stroke. It is also for people with peripheral arterial disease (poor circulation). Clopidogrel can also help people with chest pain or certain heart problems.
Morphine is used to manage severe pain in adults and children who weigh at least 110 pounds. It is for pain that requires an opioid medicine. It is used when other pain treatments are not strong enough or cannot be tolerated.
Clopidogrel keeps blood platelets from sticking together and forming clots. It blocks a substance that causes platelets to clump. This helps blood flow more freely through your body.
Morphine works by attaching to receptors in the brain and spinal cord. These receptors are involved in sending pain signals. By binding to these receptors, morphine blocks pain signals and reduces pain.
- • Bleeding
- • Constipation
- • Nausea
- • Feeling sleepy
- • Lightheadedness
- • Dizziness
- Dyspnoea 9,917
- Myocardial Infarction 9,459
- Fatigue 8,479
- Gastrointestinal Haemorrhage 8,202
- Nausea 7,881
- Pain 5,858
- Nausea 5,536
- Vomiting 4,337
- Death 4,306
- Fatigue 4,130
This drug may not work well for people with certain genes. If you have two copies of a certain gene, clopidogrel may not prevent clots as well. Your doctor may consider a different medicine for you.
Morphine can cause addiction, abuse, and misuse, which can lead to overdose and death. It can also cause life-threatening breathing problems, especially when you start taking it or after a dose increase. Accidental ingestion, especially by children, can cause a fatal overdose. Taking morphine with benzodiazepines or other CNS depressants (including alcohol) can cause severe sedation, breathing problems, coma, and death. If you use morphine for a long time during pregnancy, your baby could have withdrawal symptoms after birth.
Tell your doctor if you are pregnant or plan to become pregnant. Clopidogrel may increase bleeding during labor and delivery. Talk to your doctor about the risks and benefits of taking this medicine while pregnant or breastfeeding.
Morphine may harm your unborn baby. Using morphine for a long time during pregnancy can cause withdrawal symptoms in the newborn. Tell your doctor if you are pregnant or plan to become pregnant.
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How to Read This clopidogrel vs morphine Comparison
clopidogrel is classified in the Antiplatelet Agent drug class, while morphine sits within the Opioid Analgesic class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, clopidogrel has 43,938 submissions while morphine has 24,167. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to morphine can delay the body's ability to use clopidogrel, which stops the medicine from preventing blood clots as well as it should.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for clopidogrel or morphine.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.