Many of the questions I get each day are specifically asking about whether this drug or that drug could be the cause of hair loss. While there are many drugs that have hair loss listed as a potential side effect, it should be noted that looking at the drug as the cause of your thinning hair may not be the actual reason for the balding you’ve experienced. As genetic hair loss can skip generations, you need to take a good look at your family history (on either side of the family) to give a possible indication of where your hair loss originates. That being said, some of the common drug families may cause hair thinning. Below you can find an incomplete list of medications that may cause hair thinning and hair loss:
- Anti-thyroid medications (carbimazole, propylthiouracil)
- Most of anticancer medications
- Blood-thinner (warfarin)
- Some lipid lowering medicaitons (clofibrate, bezafibrate)
- Anti-acne drugs (isotertinoin)
- Some blood pressure medications, such as ACE inhibitors (captopril, enalapril, lisinopril)
- Gout medication (allopurinol)
- Antimalarial medication (chloroquine)
- Drugs for epilepsy (valproate sodium, vigabatrin)
- Parkinson’s disease medications (pramipexole, bromocriptine)
As I said, this is by no means a complete listing. In the literature of many drugs, hair loss is included as a side effect. It is so common, I wonder if it isn’t put in by their lawyers rather than their scientists.



Yes, steroids can be a cause of hair loss in some people. Hair is a skin organ, but hair is only part of the skin elements. When the surface of the skin turns over faster than normal (we shed skin slowly and uniformly on a daily basis and replace from below, what is lost on the surface). Compare this to a snake, which sheds its skin all at once and replaces it before the shedding occurs. When skin is shed more rapidly, it builds up flakes of skin and some people call this dandruff. When it gets bad, it is called seborrhoeic dermatitis. It can be caused by external factors such as infections and fungal diseases as well. Steroids work well to control the autoimmune elements of the seborrhea, when it occurs, and antifungal agents or other treatments are needed (for example) when infections are present.