Mixing GHB / GBL and Mephedrone

Mixing GHB / GBL and Mephedrone calls for caution — TripSit rates this combination “Caution.” Low risk never means safe.

Both can dull each other's effects, so if one wears off before the other it's possible to overdose due to the lack of counteraction. Both substances affect the heart and may lead to further dangerous heart complications at higher dosages. Additionally, the combination may increase the negative side effects of each other.

GHB / GBL (also known as G) and Mephedrone (also known as 4-MMC, meow meow).

What to do

• Even for lower-risk pairs, the safest choice is not to mix — and never to use alone.
• 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.