When discussing faulty parallelism in Merriam Webster's (1994) Dictionary of English Usage, they use the following sentence to illustrate faulty parallelism, but in doing so they refer to "taking too many drugs" as a participial phrase. Wouldn't the phrase actually be a gerund phrase since "taking too many drugs" is one of the subjects of the sentence?
Here's the sentence: "To drink heavily and taking too many drugs are bad for your health."