Medications
Learning Center
Prostate biopsy
Find out about this procedure that's used to diagnose prostate cancer. Learn about the risks, how to prepare and what you can expect.
Progressive supranuclear palsy
Learn about this brain condition that affects your ability to walk, move your eyes, talk and eat.
Priapism
Understand the symptoms, possible causes and treatment of prolonged erection of the penis, including when to seek emergency care.
Premature ejaculation
Understand what may cause ejaculation to happen earlier than wanted during sex. Also learn how to treat and prevent it.
Prednisone and other corticosteroids
Are you using a corticosteroid? Prednisone and other corticosteroid pills, creams and injections can cause side effects. Find out what to expect.
Postherpetic neuralgia
This complication of shingles can cause pain, itching and numbness long after the shingles rash clears. Treatments can ease symptoms.
Posterior vaginal prolapse (rectocele)
In this pelvic floor disorder, the rectum presses against weakened tissues and bulges into the vagina. Learn about the symptoms and treatments.
Posterior cortical atrophy
This rare neurological syndrome that's often caused by Alzheimer's disease affects vision and coordination.
Post-vasectomy pain syndrome
Learn about post-vasectomy pain syndrome (PVPS) — How it happens after a vasectomy, tests to diagnose it and treatment options.
Polypill: Does it treat heart disease?
This combination pill contains small doses of several commonly prescribed heart disease medicines.
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