Individual therapies
PC-SPES, PC-HOPE, PC-CARE and PC-PLUS are herbal supplements marketed as a way to promote prostate health and treat prostate cancer. PC-SPES is no longer available. There is not enough reliable evidence to use the other three products as a cancer treatment.
Summary
PC-SPES, PC-HOPE, PC-CARE and PC-PLUS are herbal supplements marketed as a way to promote prostate health and to treat prostate cancer.
PC-SPES is no longer available.
There is not enough reliable evidence that PC-HOPE, PC-CARE and PC-PLUS can prevent or treat cancer.
PC-SPES could have side effects.
PC-SPES is no longer available. Manufacturers market PC-HOPE, PC-CARE and PC-PLUS as herbal products to promote prostate health and to treat prostate cancer. There is no reliable scientific evidence to use it as a cancer treatment.
People used PC-SPES to treat prostate cancer because several trials had positive results. The trials looked at different herbs as a possible treatment for prostate cancer. It showed that the herbs seemed to act as a type of hormone therapy that could help to treat prostate cancer.
But the manufacturer of PC-SPES added a hormone and other drugs to it. These drugs made PC-SPES seem to work better as a hormone therapy for prostate cancer. This was illegal, and the FDA stopped the manufacturer from making PC-SPES.
PC-HOPE, PC-CARE and PC-PLUS use very similar herbs to PC-SPES. They are available from nutritionists and from the manufacturers. They are herbal products without added drugs.
There's no medically approved dose for these herbal products. There are guidelines published by suppliers of the herbs. You take them as tablets or capsules that you swallow. They come in various doses.
PC-SPES caused some side effects. It acted like oestrogen. So, the side effects were the same as for other oestrogen based hormone therapies and included:
nipple tenderness
feeling sick
fatigue
diarrhoea
leg cramps/swelling
hot flushes
loss of sex drive
Less common side effects included:
an increased risk of blood clots in the legs
breast swelling
erection difficulties (impotence)
heart problems or angina
There have been reports of chest pain in men with a history of heart disease. As the newer PC herbal products contain similar ingredients, the side effects are likely to be similar. Allergic reactions are possible with any herbal product.
Talk to your prostate cancer specialist before starting to take any of these herbal products.
This is because:
there might be a reason why it's not recommended for you (for example, you might have an increased risk of blood clots)
they might interfere with other hormone drugs you're having
you might want to wait and use them later, in case other hormone therapies stop working for you
your specialist needs to know what you're taking to have a full picture of your treatment
Using these herbal products instead of conventional treatments for prostate cancer could be very harmful to your health.
The developer of PC-SPES did many laboratory and animal studies on the herbs used in the product. They looked at the anti-cancer qualities of the herbs for prostate cancer.
The studies had positive results. But researchers say that it is not possible to tell if these results are accurate. This is because the FDA found other medicines in PC-SPES. These medications could have changed the results of the studies.
The combination of herbs in PC-SPES also varied between batches. This made the results less accurate.
Researchers suggest that we need more studies on the individual herbs. Only then can we say it might work as a cancer treatment.
Some of these early trial results showed that PC-SPES could:
lower prostate specific antigen (PSA) and testosterone levels
reduce bone pain in a third of men with this symptom
shrink prostate tumours significantly in some men
In many men, PC-SPES seemed to reduce PSA and testosterone levels to almost nothing. The herbs seemed to work better in men who hadn't had hormone therapy before. But they also worked in some men whose prostate cancer had become resistant to hormone drugs. The herbs did lower PSA in these men, but the effect didn't seem to last as long.
In several trials PC-SPES seemed to reduce blood levels of PSA. It also shrank prostate tumours. But this might be because the therapy also contained some added hormone type drugs. Some researchers feel that it may work because it contains oestrogen-like plant substances. These might block the growth of prostate cancer cells.
PC-HOPE, PC-CARE and PC-PLUS are very similar products.
Researchers did laboratory studies on PC-HOPE and PC-SPES. It showed that they might be active against prostate cancer cells. Two studies looked at using them in men with prostate cancer. The trials suggested that they might lower PSA levels and improve quality of life.
A laboratory study looked at using PC-HOPE for pancreatic cancer. The researchers found that PC-HOPE might kill pancreatic cancer cells. They suggested that it might help people with pancreatic cancer to live longer.
But we need bigger studies. Only then can we know whether these products are helpful as a treatment for people with cancer.
You can buy PC-HOPE, PC-CARE and PC-PLUS from nutritionists and manufacturers. The price can vary depending on:
the dose
the amount you buy
where you buy it (health food shops, chemist or online)
Read more about the cost of complementary and alternative therapies
It is understandable that you might want to try anything if you think it might help treat or cure your cancer. Only you can decide whether to use an alternative cancer therapy such as PC-HOPE, PC-CARE or PC-PLUS.
You could harm your health if you stop your cancer treatment for an unproven treatment.
Many websites might promote these supplements as a cure for cancer. But no reputable scientific cancer organisations support any of these claims. Be cautious about believing this type of information or paying for any alternative cancer therapy over the internet.
The safety of complementary and alternative therapies
This page is due for review. We will update this as soon as possible.
Last reviewed: 04 Jul 2022
Next review due: 04 Jul 2025
Prostate cancer is cancer that starts in the prostate gland. The prostate gland is found at the base of the bladder and is about the size of a walnut.
You have a number of tests to check for prostate cancer. These may include a digital rectal examination, a PSA blood test, scans and a biopsy.
You may have a choice of treatments such as surgery or radiotherapy. Or your doctor might suggest that they monitor your cancer instead of treatment straight away.
Coping with prostate cancer can be difficult. There are things you can do and people who can help you to cope with a diagnosis of prostate cancer.
Research is looking into diagnosing and treating prostate cancer. You need to talk to your specialist if there are any trials that you think you might be able to take part in.
The phrases complementary therapy and alternative therapy are often used as if they mean the same thing. They may also be combined into one phrase – complementary and alternative therapies (CAMs).

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