Withdrawal from anti-depressants will typically lead to anxiety and depression, which are typically stronger than the original anxiety and depression that was experienced before taking the drug.
Severe muscle spasms, bone, muscles, back and extremity pain are all common Opana withdrawal symptoms.
LSD acquired at street level is very often impure and can contain various other chemicals, such as "PCP" or "speed".
Pregnant methamphetamine users put their fetus at risk of having meth withdrawal symptoms after it is born.