F1b â is a backcross in which a Bernedoodle is bred with a Poodle. The puppy is 25 per cent Bernese, and 75 per cent Poodle. F1b puppies are the most likely to be non- shedding and allergy-friendly. Some breeders have backcrossed a Bernedoodle with a Bernese, which results in a dog with more of the Bernese traits.
Before a person is given a prescription for Vivitrol, doctors should check for recent drinking or opiate drug use. Any opiate drugs (illicit or prescription) should not be used 10-14 days before starting Vivitrol. Likewise, alcohol should not be used at least a week before taking the first Vivitrol.
Vivitrol can be detected in the body for up to a month after last dose. However, it is not a drug that doctors and/or employers test for. In fact, Vivitrol has no euphoric properties and is not a drug of abuse for patients. Vivitrol does not produce a high, nor does it create dependence or addiction in patients.