Placing drugs under the tongue and waiting for them to dissolve is called taking them ‘sublingually’. LSD ‘tabs’ on blotter paper are the drugs most commonly taken this way. 'Gumming' involves rubbing drugs onto the gums within the mouth. Both these methods deliver the drugs faster to your system compared to taking it orally.
You may want to consider doing these things if you decide to take drugs sublingually or through gumming:
Wait 1 hour before re-dosing.
If you are taking a drug sublingually or through gumming, it is likely that some of the drug will be swallowed, as the saliva in your mouth moves it from under the tongue/gums. This means that some effects will come on quickly as the drug is absorbed under the tongue/through the gums; but the effects of the drugs that were swallowed can take up to an hour to kick in.
Start with a lower dose than if taking orally.
Using drugs sublingually or through gumming can make them kick in much faster and the effects can be stronger compared to swallowing them. The onset of effects is similar to snorting drugs. Start with a lower dose than you would usually swallow to reduce your risk of experiencing unpleasant effects or overdose.
Take breaks between use to keep your mouth healthy.
Holding drugs in your mouth can have negative effects on your teeth over time, such as cavities, weakening of enamel, or gum issues. It can also irritate the skin around the tongue. Rinse your mouth out with water or brush your teeth after using drugs and consider taking breaks to reduce the damage to your mouth and teeth.
Be aware of burns or rashes.
Some drugs, particularly acidic ones such as amphetamine, methamphetamine, or MDMA can sometimes cause irritation or burning under the tongue or on the gums. Swallowing drugs can help to avoid this.