I'm on Actavis
Actavis is a primary manufacturer of Promethazine/Codeine prescription cough syrup (used in purple drank), which slows you down and relaxes you, hence he asks that the listener relax with him as well. It sets up the following bars in which each bar before the present bar relates to the subject matter in the present bar (i.e. he asks us to relax, then states he is on cough syrup and thus is relaxed himself).
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