In large quantities and In profusion

In large quantities adverb - On a large scale without careful discrimination.

In profusion and in large quantities are semantically related. In some cases you can use "In profusion" instead the phrase "In large quantities" as an adjective or an adverb.

In large quantities and in profusion are semantically related. You can use "In large quantities" instead the phrase "In profusion" as an adjective or an adverb.