Producción Científica Profesorado

Analgesic Drugs Combinations in the Treatment of Different Types of Pain



Ortiz Ramírez, Mario Isidoro

2012

"Ortiz, M.I., Molina, M.A., Arai, Y.C., Romanò, C.L. (2012). Analgesic drugs combinations in the treatment of different types of pain. Pain Res Treat. 2012, 612519."


Abstract


Pain relief can be achieved by a diversity of methods, with drug use being the basis of analgesic treatment. Clinical use of combinations of analgesic drugs has augmented considerably in the last few years. The purpose of combining two or more drugs with different mechanisms of action is to achieve a synergistic interaction [1], yielding a sufficient analgesic effect with lower doses, and, therefore, reduce the intensity and incidence of untoward effects. At present, many diverse classes of drugs serve as an efficient complement to nonsteroidal anti-inflammatory drugs (NSAIDs), acetaminophen or opioids, in the management of pain. But we emphasize that the success of a drug combination depends on the type of pain that is targeted (acute/chronic, inflammatory, neuropathic, cancer). Thus, opioids have frequently been used in combination with acetaminophen or NSAIDs for the clinical management of both acute and chronic pain. Likewise, the NSAIDs-acetaminophen combination has been administered to patients to relief the pain. At the end, the use of these combinations limits the doses of medication that a patient can receive. However, not all the opioid-NSAID, opioid-acetaminophen, or NSAID-acetaminophen combinations are clinically successful in all cases. For example, the association of weak opioids, such as dextropropoxyphene, to acetaminophen does not significantly increase pain relief compared to acetaminophen alone [2]. The administration of rectal acetaminophen combined with ibuprofen does not improve analgesia after adenoidectomy in the immediate postoperative period compared with either drug alone [3]. Likewise, the combination of codeine with paracetamol results in additional pain relief but may be accompanied by an increase in nausea, dizziness, vomiting, and constipation [4]. Therefore, several other combinations of analgesic agents must be evaluated experimentally or clinically to gain insight into their potential clinical use. In this sense, different combinations have been suggested. In the present special issue, a study realized by H. A. Ponce-Monter et al. showed that the diclofenac plus B vitamins combination was more effective to reduce the pain than diclofenac alone. Authors conclude that the combination of diclofenac plus B vitamins could be a safe and inexpensive postsurgical analgesic strategy.



Producto de Investigación




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