Hi Dr.,
I am a big fan of your site. I get to read your new posts everyday by subscribing to your RSS feeds. My question is, given that I take 1 tablet of 1mg Propecia everyday, will it interact with other supplements or even certain food?
For example, here’s a list of supplements that I take daily (i take throughout the day, separate times):
1. vitamin b complex and biotin
2. vitamin c
3. vitamin e
4. multi vitamin
5. omega complex
6. co-q10
7. methatione (gluthatione)Or how about foods:
1. coffee
2. green tea w/ honey
3. soy milk
4. fiber (like wheat bread, fruits)Just wondering if trying to be health by consuming these will counteract w/ Propecia or vice-versa? Hope this is a valid inquiry.

I have been getting these sorts of questions quite frequently lately. The supplements and foods you’re consuming shouldn’t have any negative interaction with Propecia. The only interaction I can think of with food is with grapefruit, which causes problems for a variety of medications.
The following 16 drugs are listed as having a moderate interaction with finasteride (Propecia): bosentan, diltiazem, diltiazem/enalapril, efavirenz, efavirenz/emtricitabine/tenofovir, fluconazole, fluvoxamine, itraconazole, nefazodone, nelfinavir, posaconazole, rifapentine, saquinavir, sirolimus, tacrolimus, and voriconazole. And there’s 1 drug that has a mild interaction: terazosin. These are the generic names, and for a more complete list (including brand names) see Drugs.com.

Drugs like Propecia are supposed to halt the progression of the hair loss, but they’re not a cure and won’t stop your genetics from eventually taking course (just how long is anyone’s guess). In your case though, you’ve been seeing shedding since about the time you started taking the pill. I’ve received emails from men inquiring about an initial shedding phase after starting Propecia, and perhaps this is what you’re seeing. I’ve
I would think there should be usage instructions on the Nizoral bottle, and how often it is used depends on the strength of the shampoo. I’ve read that 1% can be used daily and 2% should be used twice a week, but you should double check what strength you’re using and look for instructions on the packaging just in case I’m mistaken. Nizoral contains ketoconazole, which some people believe has some hair growth abilities; I don’t believe that to be the case. I don’t recommend any particular shampoo for general hygiene, but Nizoral could work well if you’re experiencing dandruff.