Ocimum micranthum

Ocimum micranthum (4, Miscellaneous Admixtures ) This mint species is reportedly used as an ayahusaca 3Arais.XMXz in South America (Schultes Hofmann 1979). There exist at least two reports of the ethnomedicinal use of this species in M ico and Guatemala as an analgesic (Alcorn 1984 Giron etal. 1991). Chemical studies arc lacking,... 

Obregonia denegrii Fric-108,425 Ochrosia nakaiana Kbidz.-262 Ocimum micranthum Willdenow—216,222, 270,381,416... 

The oil of Ocimum basilicum has been reported as an expectorant in animals. The combined oils of Ocimum micranthum and Chenopodium ambrosioides are claimed to treat stomachache and colic in animals (Cornell University Animal Science, 2009). 

Lino et al. (2005) used the EO of Ocimum micranthum Willd. (Lamiaceae) from Northeastern Brazil to study its antinociceptive activity in the hot plate and in the acetic acid-induced writhing test. Upon administration of low doses the EO could inhibit the number of writhings up to 79%. The antinociceptive effect was not influenced by pretreatment with naloxone. In the formalin test pawlicking time decreased to 61%. Also in this case the pretreatment with naloxone could not reverse the antinociceptive effect, confirming that there is no involvement of the opioid system. However, an involvement of the NO system was suggested because of the reverse of the antinociception by L-arginine in the second phase of the formalin test. 

Lino, C.S., P.B. Gomes, D.L. Lucetti, et al., 2005. Evaluation of antinociceptive and antiinflammatory activities of the essential oil (EG) of Ocimum micranthum Wild, from Northeastern Brazil. Phytother. Res., 19(8) 708-712. 

Cornell University Animal Science. 2009. Treating livestock with medicinal plants Bene dal or toxic — Ocimum basilicum, O. americanum and O. micranthum. http /Avww.ansci.cornell.edu/plants/medicinal/ basil.html. Accessed September 10. 2009. 

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