The same thing under two names, which is the first source of confusion on this shelf. Viridian label theirs vitamin B5; Solgar label theirs pantothenic acid. If you are comparing products and the names look different, that is why.
It is water soluble, like the rest of the B group, so what is not used is passed rather than stored. That makes it one of the harder vitamins to overdo.
Most people are better served by a B complex, since the group works together and taking one alone at a high level over a long period is not usually the approach. B5 is generally bought individually for a specific reason.
If that is you, the strengths here run 350mg to 550mg. Compare per capsule across pack sizes rather than pot price, since counts vary.
With food, and in the morning if you find B vitamins at all stimulating – some people do. Check any multivitamin or B complex you already take for overlap.
If you are pregnant, breastfeeding or on prescribed medication, ask a pharmacist before adding a single high-strength B vitamin.
FAQ
Is pantothenic acid the same as vitamin B5?
Yes, the same thing under two names. Brands label it differently.
Should I take B5 alone or in a complex?
A complex suits most people. B5 on its own is generally bought for a specific reason.
Can I take too much?
It is water soluble, so excess is passed rather than stored, which makes it hard to overdo. Still check for overlap with a multivitamin.
When should I take it?
With food, and in the morning if you find B vitamins stimulating.