I used alldaychemist.com for purchasing most medications and was very happy with them. Everything came in its original packaging with batch numbers, etc.
The products themselves were very inexpensive aside from the $25 shipping fee, which is for express international shipping (which is good for express intl shipping). Most of the medications are from prominent Indian pharmaceutical companies. One (niclosamide) was made in Turkey. Tracking numbers were provided with the shipping to see how long it was held up at customs, etc.
They have mebendazole, albendazole, praziquantel, niclosamide, and nitazoxanide (which is effective against a broad range of parasites, including flukes, when taken for a week at a higher dosage).
I'd like to mention though that there have been potential issues with potency of generic mebendazole. So if purchasing that particular med it's probably better to buy it somewhere that sells Vermox made by Janssen. I have purchased that from unitedpharmacies.com. Shipping takes a little longer from them.