Every Monday · For Med Students

One drug.
Never forget it.

Every Monday, one drug. One story built from the word itself. Made by a med student, for med students.

    ↓ This week’s edition

    RxMnemonic Antiandrogenics
    Finasteride
    5-ALPHA-REDUCTASE INHIBITOR · ↓ DIHYDROTESTOSTERONE · BPH / BALDNESS
    FINA = five-a + STERIDE = steroid
    Separate finasteride into fina (sounds like five-a) and steride (sounds like steroid). Now imagine a girl on the worst date of her life holding up her five-finger hand to block the male steroids (steride) across the table. Her five fingers remind you of five-a (fina), which helps you remember 5-alpha, and her blocking gesture represents an inhibitor, making finasteride a 5-alpha-reductase inhibitor.
    Finasteride
    5-alpha reductase inhibitor FINA = five-a = 5-alpha
    HOW STEP TESTS IT
    1
    Decreases DHT, not testosterone – competitively inhibits 5-alpha-reductase, blocking conversion of testosterone to dihydrotestosterone (DHT).
    2
    Treats benign prostate hyperplasia and baldness – DHT causes prostate enlargement and mediates androgenetic alopecia.
    PRACTICE QUESTION
    A patient starts oxybutynin for overactive bladder. Which adverse effect is most likely?
    A) Diarrhea
    B) Excess salivation
    C) Dry mouth ✓
    D) Bradycardia
    Answer: C – Dry mouth. Oxybutynin is an antimuscarinic, so classic side effects include dry mouth, constipation, urinary retention, and blurred vision.
    New Drug · Every Monday rxmnemonic.com
    Brought to you by RxMnemonic One drug. One story. Never forget it.

    How it works

    Simple. Sticky. Effective.

    One story that makes a drug impossible to forget.

    Step 01

    It hits your inbox

    Every Monday morning, one new drug lands in your email — just the mnemonic, the story, and the clinical pearl.

    Step 02

    Read the story

    A vivid, memorable image helps you remember the drug’s mechanism, receptor, and key contraindications in under 2 minutes.

    Step 03

    Nail the question

    Each edition ends with a practice question from last week’s drug so you can test yourself.

    What’s inside

    Everything Step tests.
    Nothing you don’t need.

    ✓

    The mnemonic breakdown — drug name decoded into a memorable anchor

    ✓

    The story + image — a scene that burns the mechanism into memory

    ✓

    How Step tests it — the exact clinical scenarios you’ll see on exam day

    ✓

    A practice question — test yourself on last week’s drug before you forget

    Drugs covered so far

    ✓ Finasteride
    ✓ Oxybutynin

    Ready?

    One drug.
    Every Monday.

    Join students who are done forgetting drugs the hard way.