@lizjlb, it's not a prescription, it's a supplement. It's a flavonoid, like Quercetin and others. There are several articles on the NIH website, about its action on Pseudomonas aeruginosa: it inhibits virulence factors and supresses the formation of biofilm. I was looking for something else on the NIH and by happenstance, found those articles. I figured trying it as a supplement could not hurt. I also take Pterostilbene, which has vast antimicrobial properties, I seem to be doing well on them both. I mentionned Pterostilbene to my pulmo., he looked it up briefly and said I don't know if it will help, but I don't think it can hurt, you may take it. I did not ask about Apigenin, but I am taking it every night, and quite frankly, i like it. However, Pterostilbene does tend to increase LDL cholesterol. And it is not advised to take too much Apigenin, as it could affect immune system. I take one capsule of 75 mg Apigenin every night. But, talk it out with your physician. It works well for me, but we are all different. My only meds are Advair and Azelastine nasal spray, nothing else at all. if you take meds, there could be interactions, who knows? Look it up, there is plenty of info on it. If you are on antibiotics, it allegedly makes the antibiotics more effective.
Best wishes of great health to all of us!