I wouldn’t trust a foreign website for medication, that could seriously bite you in the ass, one of my friends tried it for an HIV med and it ended up being a sugar pill. If people are willing to toy with someone’s life that badly, I can imagine they’d do it on something less serious. However, you never know, and by the sound of your post its probably a serious medication if it’s very expensive. Is there any chance your doctor knows of another cheaper medicine? Could you get a second opinion? There are sometimes incentives to prescribing certain meds, I would do a search for “MEDICATION NAME alternatives” or something similar in google and see if anything you find might apply to you. If that doesn’t work, explain your financial circumstances to your doctor, the friend I mentioned earlier ended up getting some trial packages of supplemental meds because his doctor understood he couldn’t afford it any other way. That’s all I got, remember you’re taking a serious risk with foreign pharmaceutical websites because it is near impossible to verify them. It’s your personal choice. That being said, I wish you the best and hope you can find an option that works for you.