Postmortem Concentration and Redistribution of Diazepam, Methadone, and Morphine with Subclavian and Femoral Vein Dissection/Clamping.
Human subjects
Names both Diazepam and Morphine in its title.
Supplement × Prescription·Evidence index
PubMed indexes 6 records that name Diazepam and Morphine together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.
Every statement below is attributed to a named, dated, linked source.
This page lists published research relevant to Diazepam and Morphine. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.
Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.
Names both Diazepam and Morphine in its title.
“In combination the sum of fractional doses was higher than a single-drug fractional dose, 1.67 versus 1.00 (P less than 0.05) for morphine-diazepam and 1.61 versus 1.00 (P less than 0.05) for fentanyl-diazepam. The observed antagonism is a relative one that does not increase the requirement for one agent upon the addition of another agent.”
Names both Diazepam and Morphine in its title.
“Interaction between diazepam and morphine was found to be synergistic. It is not likely to be pharmacokinetic in nature.”
Names both Diazepam and Morphine in its title.
“Sedatives and analgesics including morphine and benzodiazepines should be used with caution during this period and alternatives may need to be considered. Advanced planning of medication dosage adjustment is advised to reduce the risk of medication overdose.”
Names Diazepam and Morphine together in an interaction, co-administration, or pharmacokinetic context.
“The placement of a 10-mg diazepam rectal suppository immediately after pelvic reconstructive surgery did not improve pain or narcotic usage in the early postoperative period. Although the placebo group reported slightly higher satisfaction with pain control 2 weeks after surgery, overall pain levels were low. Therefore, we do not believe that the addition of diazepam to the postoperative regimen is warranted.”
Names Diazepam and Morphine together in an interaction, co-administration, or pharmacokinetic context.
Names Diazepam and Morphine together in an interaction, co-administration, or pharmacokinetic context.
Search-based evidence indexes have real limits, and it is worth being explicit about them:
NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Diazepam, Morphine, and several hundred other substances.
The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.
NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.