When applied to a drug, the word ergogenic means "energy-producing."?

Yes it is true, when applied to a drug, the word ergogenic means "energy-producing. Two ergogenic substances have a purpose of respiratory improvement Ephedrine and Asthma Medications.  the purpose of thyroid hormones and the type of substance, Purpose- Enhance metabolism and energy Type- Ergogenic.

implies that the products has special work-enchaning powers & is associated with supplements claimed to benefit athletes

Explanation:

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.