Mixing GHB / GBL and DPH

Mixing GHB / GBL and DPH is dangerous and should be avoided — TripSit rates this combination “Dangerous.” Low risk never means safe.

Both substances are CNS depressants, potentiating each other strongly and unpredictably, raising the chances of memory loss, severe ataxia, and unconsciousness. The interaction will cause greater inhibition and risk of injury. If the user falls unconscious it is strongly recommended to put them into the recovery position and monitor breathing.

GHB / GBL (also known as G) and DPH (also known as Benadryl).

What to do

• Avoid this combination — the safest choice is not to mix them.
• Start with much less than usual and go slow — you can always take more, never less.
• Never use alone. If you do, call 1-800-484-3731 (Never Use Alone) so someone can send help if you stop responding.

Open the interactive combination checker

Related combinations

• Mixing Opioids and GHB / GBL
• Mixing Benzodiazepines and GHB / GBL
• Mixing Alcohol and GHB / GBL
• Mixing Cocaine and GHB / GBL
• Mixing Amphetamines and GHB / GBL
• Mixing MDMA and GHB / GBL
• Mixing Cannabis and GHB / GBL
• Mixing Ketamine and GHB / GBL

This is educational information, not medical advice. "Low risk" never means "safe", and the potency of an unregulated supply is unknown.