How about this

Medication Blues
To the tune of Hesitation Blues

Doctor told me, hope it's a lie
You'll never get better till the day you die.

CHORUS Tell me how long do I have to wait?
Am I all right now or should I medicate?

Three pills in the morning, Two at night,
Another calms me down in case I don't get it right,

A capsule is a capsule, a pill is a pill
If complacency don't get me then anxiety will

I don't like the red ones, I don't like the blue (Double take at the audience)
I'm not so sure I like the look of you

I'm standing on the corner, I'm just not sure,
Am I looking for a lover, a dealer or a cure?

Friends come round, so they say
Just wanna get high on my Nitro spray

The Altzeimer verse (apologies for any offense)

Standing in the kitchen (Parlour, Rest room, Diner, stair well, bar room, etc) looking at the floor,
Just can't remember what I came here for.