It is possible that your hair loss is caused by your drug use. You didn't state which prescription pain killers you have had so I cannot provide you a definite answer to your question, but I suggest that you talk over with your doctor
about your hair loss problem. In general, sometimes medications have unwanted side effects, including changes to the hair. How quickly has your hair been falling out? What other symptoms do you have, such as scalp itching, burning or tingling
? Certain drugs can cause excessive hair growth, changes in hair color and texture, or hair loss. Drugs cause hair loss by interfering with the normal cycle of scalp hair growth. It most commonly occurs within two to four months after taking the drug. The good news is that drug-induced hair loss, in most case, is easily reversible once you stop taking the drug. Having said all of this, there are other medical problems, such as thyroid disorders, that can sometimes contribute to hair loss. I hope you find the information helpful. And I also suggest that you schedule a visit with a primary care doctor
who will assess your condition to establish a diagnosis and rule out any serious medical condition.