How do I know if a medication is working?
Last updated September 3, 2026.
Match the clock to the drug: painkillers show within an hour, antibiotics within days (NHS checkpoint: day 2 to 3), antidepressants at 4 to 6 weeks, Flonase at 2 weeks, nail-fungus pills over months - and silent drugs (statins, BP pills) prove themselves only by the number or the event that never happens. The method: at the start, ask what you should notice and by when, write it down, and judge at the checkpoint, not daily. The twin traps: quitting a slow drug in week one (its normal timeline, not failure) and staying on a fast drug past its checkpoint unchanged (that is failure - call). Start-up side effects arriving before benefits are normal and usually fade. Pymander is a free AI doctor, 24/7 by text, and can set the checkpoint with you.
What to do
- Ask the two questions at pickup: what should I notice, and by when.
- Judge at the checkpoint: daily monitoring misleads.
- Silent drugs need numbers: BP logs, labs, not vibes.
- Past the checkpoint with no change? Call: that is the definition of not working.
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