Fentanyl Withdrawal Duration
In both medical and “recreational” uses, it takes very little time for fentanyl withdrawal symptoms to begin occurring. Withdrawal symptoms can begin as soon as 6 to 12 hours after your last dose of the drug or medication. The severity of the withdrawal symptoms will depend on the individual, the amount of the drug they have been taking, how suddenly they are coming off of the substance, and the individual’s personal metabolism.
The time in which it takes withdrawal symptoms to begin surfacing also depends on whether or not the opioid is fast-acting, or takes longer to take effect. In the case of fentanyl, it would depend on the route of use. Fentanyl transdermal patches are considered to be slow-release forms of the drug, whether they are used in illicit circumstances or in medical practice, meaning they take longer to take effect. Meanwhile, in tablet or lozenge form, fentanyl can begin taking effect almost immediately.
Typically individuals undergoing fentanyl withdrawal will see peak symptoms occurring within 30 hours, after their last use. Normally fentanyl withdrawal symptoms will not last more than 10 days, with effects tapering off to be milder as time goes on.
Fentanyl Withdrawal Timeline
Knowing the symptoms and the duration of a fentanyl withdrawal can be very helpful to both individuals looking into getting off of fentanyl, and their family members. But, it is also important to note that most often, these withdrawal symptoms can occur at different times. Early onsetting withdrawal symptoms, occurring within anywhere from 6 to 12 hours after the last use and lasting up to 30 hours, include: