Can you have mesh particles that don’t intersect? Hey there I’m just wondering what I should be using if I’m after this result where there’s scattered randomly rotated pills that aren’t intersecting each other like this…

istock example

At the moment mine looks like this where I’ve used a particle system but they’re intersecting.



or should I be using something else like rigid bodies?

Thanks in advance.
If you don't want them to intersect, then yes you should be using rigid bodies. 

In the particle system settings, change the start and end frame 1 and adjust the number of particles to fit your scene. That makes all the particles spawn at the same time. Then go into the modifiers tab of the emitter object and click convert. Now each particle should be a separate object. 

Then just create a rigid body sim and cache it out.