2 ms·
Fentanyl and Heroin are both in the family of opioids, they have the same effect but have different potency. Methylphenidate and Amphetamines are in totally dif
by speed_spread 5y ago
Fentanyl and Heroin are both in the family of opioids, they have the same effect but have different potency. Methylphenidate and Amphetamines are in totally different families of stimulants.