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Ferula harmonis 'zallouh' and enhancing erectile function in rats: efficacy and toxicity study
T S El-Thaher1, K Z Matalka, H A Taha
1ARAGEN Biotechnology, Naor, Jordan.
International Journal of Impotence Research
|August 9, 2001
Summary
Ferula harmonis seed oil may enhance erectile function in male rats, but prolonged use leads to toxicity. Further research is needed to identify active compounds and their mechanisms.
Area of Science:
- Pharmacology
- Ethnobotany
- Toxicology
Background:
- Ferula harmonis, known as 'zallouh', is traditionally used as an aphrodisiac in the Middle East.
- Despite its reputation for enhancing male sexual behavior, scientific evidence is lacking.
Purpose of the Study:
- To investigate the efficacy of Ferula harmonis seed oil in improving erectile function.
- To assess the toxicity profile of Ferula harmonis seed oil in male rats.
Main Methods:
- Crude oil from Ferula harmonis seeds was administered to male rats.
- Erectile function was evaluated using the penile erection index.
- Acute and subacute toxicity were assessed through various physiological and biochemical parameters.
Main Results:
- Erectile function enhancement was dose-dependent, with an effective dose 50 (ED50) of 12.03 mg/kg.
- The median lethal dose (LD50) was 10.6 g/kg, indicating a wide safety margin for short-term use.
- Long-term administration (28 days) at doses of 0.05, 0.5, and 2 g/kg resulted in toxicity, including decreased body weight, hepatomegaly, testicular atrophy, reduced hemoglobin and red blood cell counts, and lower cholesterol levels.
Conclusions:
- Ferula harmonis seed oil demonstrates potential for enhancing erectile function.
- Prolonged or high-dose use of Ferula harmonis seed oil can lead to significant toxicity.
- Further studies are required to isolate active compounds and elucidate their mechanisms of action.
