Repositioning Candidate Details

Candidate ID: R1467
Source ID: DB12911
Source Type: approved; investigational
Compound Type: small molecule
Compound Name: Nicoboxil
Synonyms: beta-Butoxyethyl nicotinate; Nicoboxil
Molecular Formula: C12H17NO3
SMILES: CCCCOCCOC(=O)C1=CN=CC=C1
Structure:
DrugBank Description: Nicoboxil has been investigated for the treatment of Acute Low Back Pain, where it is typically considered an effective and safe therapeutic option. Nevertheless, it is predominantly found paired with nonivamide as a combination topical analgesic product where its proposed mechanism of action as a rubefacient is complementary and ultimately synergistic with nonivamide's capsaicin activity . Such combination topical analgesics are only available for purchase and use (for humans) in some parts of Europe and Asia, like Germany and Australia . Despite topical nicoboxil/nonivamide topical analgesic medication being used since the 1950s, recent studies demonstrate continued interest in the medication(s) given its demonstrated efficacy, safety, and capability to be used as an alternative musculoskeletal pain therapy option with less systemic side effects when compared to the oral non-steroidal anti-inflammatory drugs and opioids that may be more typically prescribed .
CAS Number: 13912-80-6
Molecular Weight: 223.272
DrugBank Indication: The primary therapeutic use for which nicoboxil is currently indicated for is as an active ingredient in combination with the capsaicinoid nonivamide compound as a topical analgesic for the temporary relief of the pain of rheumatism, arthritis, lumbago, muscular aches, sprains and strains, sporting injuries, and other conditions where local warmth is beneficial . Nevertheless, most of the available studies regarding the use of nicoboxil and nonivamide topical analgesics focus specifically on their efficacy and safety in treating acute non-specific low back pain, typically finding the combination analgesic to be an effective, safe, and well-tolerated medication for such an indication .
DrugBank Pharmacology: Topical applications consisting of the individual active ingredients of nicoboxil and nonivamide at doses considered to be therapeutic are generally not considered readily available commercially . Subsequently, the pharmacodynamics of nicoboxil are considered useful in commercially available combination products largely because they combine with those of nonivamide to offer a synergistic effect from the unique complementary actions of these two agents . Subsequently, nonivamide is a synthetic capsaicin analog with analgesic properties which are assumed to result from the depletion of Substance P in the peripheral nociceptive C-fibres and A-delta nerve fibers upon repetitive topical application . Resultant stimulation of afferent nerve endings in the skin evidently causes a dilatory effect on the surrounding blood vessels accompanied by an intense, long-lasting sensation of warmth associated with the nonivamide use . Given the proposed effect of nonivamide, it is believed that nicoboxil is a vitamin of the B complex that possesses vasodilating properties facilitated by prostaglandin . The observed hyperaemic increased blood flow effect of nicoboxil occurs earlier and is described as being more intense than the nonivamide hyperaemic effect . Nicoboxil and nonivamide are consequently generally indicated as a combination product because the pharmacodynamics of nicoboxil are considered useful as a complement to those of nonivamide, and vice versa . In essence, both compounds induce vasodilation by different effects and therefore have complementary abilities inducing increased blood flow, thus hastening the hyperaemic skin reaction .
DrugBank MoA: In particular, nicoboxil is considered a rubefacient . However, the specific mechanism of action by which rubefacients like nicoboxil elicit pharmacologic effects has not yet been formally elucidated . Nevertheless, it is generally proposed that rubefacients cause irritation of the skin when applied topically, and are believed to alleviate pain in muscles, joints, tendons, and other musculoskeletal pains in the extremities by counter-irritation . This specific term, 'counter-irritant', derives from the fact that rubefacients can cause a reddening of the skin by causing the blood vessels of the skin to dilate, which gives a soothing feeling of warmth . In essence, the term largely refers to the notion that irritation of the sensory nerve endings alters or offsets pain in the underlying muscle or joints that are innervated by the same nerves . In fact, the vasodilation effect of rubefacients like nicoboxil has been considered the result of nerve conduction mechanisms as early as the late 1950s when certain studies demonstrated that the concomitant application of xylocaine could counteract or prevent the vasolidator response to rubefacients in 50% of such related experiments .
Targets: --
Inclusion Criteria: Indication associated