The use of the base or the salt and the vehicle employed had a more important effect on sublingual absorption than on oral absorption. Aconitine in alcohol was more rapidly absorbed sublingually than aconitine hydrochloride in water although there was no difference in subcutaneous absorption.

What affects sublingual absorption?

Eating, drinking, or smoking, can affect how the drug is absorbed and how well it works. Also, these forms don't work for drugs that need to be processed slowly by your system, such as extended-release formulations. Any open sores in your mouth can also become irritated by the medication.

How long does it take for sublingual absorption?

Peak blood levels of most products administered sublingually are achieved within 10‐15 minutes, which is generally much faster than when those same drugs are ingested orally. Sublingual absorption is efficient. The percent of each dose absorbed is generally higher than that achieved by means of oral ingestion.