Lymphoid tissue: T-lymphocytes and the Thymus. The thymus is a primary lymphoid organ found within the superior mediatinum, behind the upper part of the sternum. This organ is active in children, but at the start of puberty, until old age, it starts to atrophy, producing fewer T-cells.
Long Term Effects of Oxycodone on Your Health. 1  Unintentional Overdose. 2  Tolerance and Increased Abuse. 3  Addiction to Oxycodone. 4  Respiratory Problems. 5  Cardiovascular Problems. 6  Long Term Effects in Brain Functioning and Systems. 7  Other Organ Impairments. 8  Withdrawals and Relapse.
You can expect the effects of oxycodone withdrawal to occur a few hours after the last dose of oxycodone has worn off. Expected side effects of oxycodone withdrawal include the following: abnormal skin sensations; chills; confusion; excessive yawning or sneezing; extreme drowsiness; diarrhea; mood changes; seizures (more serious) sleep disturbance; sweating