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Thursday, January 23, 2014

Learn Something New qD: Methadone and Verapamil are Structurally Similar

English: Synthesis of methadone Deutsch: Synth...
English: Synthesis of methadone Deutsch: Synthese von Methadon (Photo credit: Wikipedia)
structural formula of Verapamil
structural formula of Verapamil (Photo credit: Wikipedia)
In a new series at OncoPRN, look for unique facts in the world of medications, oncology and palliative care. 

 From Medscape:
"Methadone appears to have a molecular structure similar to that of verapamil and may exhibit similar cardiac properties, such as calcium channel blockade.[10] One study demonstrated that methadone, unlike morphine, significantly lowered heart rate in rats (p<0 .05="" span="">[10]

 10 Seyler DE, Borowitz JL, Maickel RP. Calcium channel blockade by certain opioids. Fundam Appl Toxicol 1983;3:536-42.

The potential of methadone to cause adverse effects similar to verapamil must be taken under consideration clinically in any patient taking methadone or is to start methadone.

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Welcome and thanks for visiting Onco-P.R.N. - The oncology website with a focus on all things oncology pharmacy/pain/palliative care-related. It is intended to be an information resource for those pharmacist and relevant health care professionals involved in whatever fashion with cancer and palliative care. Stay tuned for the latest and greatest links and information with respect to: oncology medications, continuing education, pharmaceutical care initiatives, pain and symptom control, supportive care topics, and whatever else that might fit into the theme.

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Pharmacy History

"The earliest known compilation of medicinal substances was ARIANA the Sushruta Samhita, an Indian Ayurvedic treatise attributed to Sushruta in the 6th century BC. However, the earliest text as preserved dates to the 3rd or 4th century AD.
Many Sumerian (late 6th millennium BC - early 2nd millennium BC) cuneiform clay tablets record prescriptions for medicine.[3]

Ancient Egyptian pharmacological knowledge was recorded in various papyri such as the Ebers Papyrus of 1550 BC, and the Edwin Smith Papyrus of the 16th century BC.

The earliest known Chinese manual on materia medica is the Shennong Bencao Jing (The Divine Farmer's Herb-Root Classic), dating back to the 1st century AD. It was compiled during the Han dynasty and was attributed to the mythical Shennong. Earlier literature included lists of prescriptions for specific ailments, exemplified by a manuscript "Recipes for 52 Ailments", found in the Mawangdui tomb, sealed in 168 BC. Further details on Chinese pharmacy can be found in the Pharmacy in China article."

From Wikipedia: http://en.wikipedia.org/wiki/Pharmacy#History_of_pharmacy

Medscape Pharmacists Headlines

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