An 82-year-old man experiencing erectile dysfunction despite treatment with tadalafil has been advised that increasing the medication dose is unlikely to improve his condition. The man, who is sexually active with a 72-year-old partner, reported that his general practitioner prescribed 10 mg of tadalafil, but it did not yield the desired effect. He is also undergoing treatment for high blood pressure and underwent extensive radiotherapy for prostate cancer a decade ago.

Erectile dysfunction (ED) is a common issue among men in this age group, with studies indicating that nearly 80 percent of men experience some degree of ED by the age of 80. Additionally, approximately half of men who undergo standard prostate radiotherapy—a treatment that uses high-energy rays to kill cancer cells—develop erectile problems afterward. Certain antihypertensive medications are also known to negatively affect erectile function.

The patient inquired about testosterone replacement therapy, but doctors reportedly declined this option due to concerns it might promote the return of prostate cancer. Experts note that testosterone therapy carries the risk of stimulating any dormant cancer cells that survived initial treatment.

Alternative treatments recommended include the use of vacuum erection devices or penile implants. The vacuum pump method involves a clear plastic cylinder placed over the penis, which uses negative pressure to draw blood into the penile tissue, creating an erection. A constriction ring maintains the erection for a limited time to allow for sexual activity. This non-invasive technique does not depend on hormone levels and is generally well tolerated by couples. Penile implants, while effective in simulating an erection, result in a permanent rigid state and require surgical intervention.

In a separate inquiry, a patient suffering from recurrent diverticulitis reported significant improvement after starting probiotic treatment. Diverticulitis occurs when small pouches in the intestine, known as diverticula, become inflamed or infected, potentially causing pain, bleeding, and in severe cases, abscesses or perforation leading to peritonitis or sepsis.

Standard treatment for diverticulitis typically involves rest, intravenous fluids, and antibiotics, with surgery reserved for severe complications. Although the mechanisms by which probiotics may alleviate diverticulitis symptoms are not fully understood, some research suggests that probiotics can reduce inflammatory markers by altering the gut microbiome—the community of microorganisms involved in digestion and immune function—favoring beneficial bacteria over harmful ones.

While definitive evidence on the effectiveness of probiotics in preventing diverticulitis flare-ups remains limited, some clinicians recommend their use for patients who experience benefit, as was the case for this patient.