In this study, the essential oil composition of Rydingia michauxii was evaluated during the dormant, vegetative and flowering stages. The major chemical constituents of R. michauxii at the dormant stage were eugenol (36.81%), eugenol acetate (21.02%), and carvacrol (9.35%). While the main chemical constituents for the vegetative stage were carvacrol (16.08%), eugenol (13.23%), cumin aldehyde (9.63%), and linalool (8.28%). In addition, carvacrol (14.20%), eugenol (8.98%), -cadinene (8.90%), caryophyllene oxide (8.43%) and n-hexadecanoic acid (7.07%) were the major volatile components during the flowering stage. Variation in chemical compositions of R. michauxii during the various developmental stages might be affected by environmental and climatic factors.
Premature ejaculation is one of the most common sexual disorders worldwide without a satisfying treatment. In this study, we investigated the efficacy of a topical formulation of clove oil in premature ejaculation patients. Eligible patients were randomly divided into two groups to use either Syzygium aromaticum (SA) 1% gel or placebo gel 10 minutes before the intercourse for a period of 8 weeks. Outcome measurement were Premature Ejaculation Diagnostic Tool (PEDT) and International Index of Erectile Function (IIEF) questionnaires in addition to Intravaginal Ejaculation Latency Time (IELT). A total number of 22 (11 patients in each group) participants completed the study. At the end of the intervention, the IELT scores changed from 29.84 ± 18.59 to 97.09 ± 91.86 and 42.51 ± 13.98 to 52.45 ± 32.7 seconds in SA gel and placebo groups, respectively (p-value = 0.003). Also, the changes of PEDT scores in the SA gel group (from 14 ± 3.55 to 9.2 ± 4.56) comparing to that of placebo gel group (from 14.63 ± 3.61 to 13.5 ± 3.78) was significantly different (p-value =0.001). Moreover, results of IIEF questionnaire revealed significant improvement of “Intercourse Satisfaction” in SA gel group (p-value = 0.016). No adverse event was observed. It seems that SA gel could be beneficial in the treatment of premature ejaculation; however, it should be further evaluated in larger studies.
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