Pillagophobia 

Fear of swallowing pills.

Sorry, I only take liquid medicine. I have Pillagophobia.

Pillagophobia by iOmegaGamer December 18, 2017

pillarphobia 

An irrational fear of pillars.

Matt: "Why won't Tom go outside and just keeps rotting away in his apartment, alone and completely isolated from the rest of the world by his own decreased mind?"
Andrea: "Oh, he has pillarphobia"

Matt: "Huh. Okay"

pillarphobia by InMusic Sam February 7, 2021

Pillicophobia 

The fear of taking pills; the fear of having pills get stuck down ones throat.

Because Madeline couldn't get over her pillicophobia, she crushed up the pill that her doctor gave her and mixed it with some ice cream.

Pillicophobia by Karen Ambrose May 12, 2011