NOLVADEX
The way nolvadex works:
Nolvadex can activate neural timing mechanism(s) that govern the intermittent release of endogenous GnRH. 20 mg nolvadex/day for 7 days in 6 normal men attenuates the ability of exogenous GnRH to increase the bio/immuno LH ratio further, which suggests the attainment of maximal enrichment in endogenous LH bioactivity in the presence of antiestrogen (N4).
Nolvadex increases LH, FSH and testosterone values (N1-N4, N24, N29)
Long term treatment with nolvadex is effective in normalising a suppressed axis:
-6 months 20 mg nolvadex/day for 220 men with oligozoospermia increases LH, FSH and testosterone (N1).
-5,5 months 5-20 mg nolvadex/day for 12 men with oligozoospermia increases LH, FSH and testosterone (N3).
-2-4 months nolvadex for 6 men increases LH levels significantly (N24).
-2-12 months nolvadex for 8 boys increases testosterone. LH showed an increased response to LH-RH (N29).
Short term nolvadex treatment is effective in normalising a suppressed axis:
-1 week 20 mg nolvadex/day for 4 men causes a moderate increase in LH, FSH and testosterone (N2).
nolvadex stimulates the axis in small amounts:
-5, 10 and 20 mg nolvadex/day significantly increases basal testosterone levels and the responses of LH/FSH to LHRH infusion. Without significant differences between the lower (5-10 mg) or higher doses (20 mg) (N3).
Nolvadex increases LH, FSH and testosterone above basal levels:
-20 mg nolvadex/day for 1 week increases LH, FSH and testosterone in 4 normal men (N2).
-40 mg nolvadex/day for 10 days in 8 normal men increases basal bioactive LH concentrations from (42.7 +/- 6.9) to (97.6 +/- 19.4) mIU/ml. Total serum testosterone increases significantly (approx. 1.4-fold) (N4).
Nolvadex increases estrogen levels
-5,5 months nolvadex for 12 men does not significantly influence estradiol levels or the E2 over testosterone ratio (N3).
-2-4 months nolvadex for 6 men increases total estradiol levels significantly (N24).
-2-12 months nolvadex for 8 boys increases estradiol (N29).
Nolvadex appears effective in treating gynecomastia. Raloxifene possibly is even more effective.
-(13 men with painful gyno) 10 mg nolva/day for 3 months provided a good response in 10 patients (N21).
-(36 men) 20 mg nolva/day for 6-12 weeks resolved the mass in 30 patients (83,3%). Lump gyno was more responsive than the fatty type (100% vs. 62.5%) (N22).
-(23 men) 20 mg nolva/day provided complete resolution of gyno in 18 patients (78,2%). 400 mg danazol provided complete resolution in only 8 out of 20 patients (40%) (N23).
-(6 men with painful gyno) Nolva for 2-4 months provided only marginally significant size reduction (N24).
-(61 men with gyno) 40 mg nolva/day for 2 months provided complete regression of breast swelling in 80% (N25).
-(38 boys with persistent gyno) Nolva for 3-9 months reduces breast nodule diameter 2,1 cm. For raloxifene this was 2,5 cm. Nolva provided a significant decrease (<50%) in 41%, with raloxifene this was (86%) (N27).
-(10 boys with pubertal gyno) 20-40 mg nolva/day for 2-12 months decreases gyno totally in 8 boys (N29).
Effect nolvadex on heart and cholesterol in "normal" people seems positive, in women with breast cancer conflicting:
-40 mg nolvadex for 8 weeks in 16 men with coronory artery disease increases %ED-FMD and decreases several plasma cardiovascular risk factors (N11).
-10 mg nolvadex for 1 and 3 months in 15 healthy boys effects blood lipids and hemostasis similar, but lesser than described in women (N12).
-Nolvadex for 6 months in 54 women treated for breast cancer increases HDL-C/total-Cholesterol ratio which might lead to an increased cardiovascular risk (N13).
-Nolvadex for 3 + 6 months in 80 women with breast cancer: 38 premenopausal women showed no significant variation in serum lipoprotein profiles, 42 postmenopausal women showed significant improvement in serum lipoprotein profiles (N14).
-Nolvadex for 2 months in 16 postmenopausal women with breast cancer shows marked hypertriglyceridemia in 3/16 patients (N15).
-20 mg nolvadex for 2 years in 57 normal postmenopausal women reduces the levels of atherogenic lipids and fibrinogen which may substantially reduce the risk o cardiovascular disease (N16).
Side effects Nolvadex
-(13 men) 10 mg nolva/day for 3 months. One patient developed calf tenderness and stopped the medication. No other adverse effects were reported (N21).
-(61 men) 40 mg nolva/day. No long term side effects were observed over a 3 year follow-up period (N25).
-(38 boys) Nolvadex for 3-9 months did not show any side effects (N27).
-(8 boys) Nolvadex for 2-12 months did not show any side effects (N29).
N1)
http://www.ncbi.nlm.nih.gov/entrez/...d&dopt=Abstract&list_uids=10233572&query_hl=1
N2)
http://www.ncbi.nlm.nih.gov/entrez/...ed&dopt=Abstract&list_uids=8582972&query_hl=1
N3)
http://www.ncbi.nlm.nih.gov/entrez/...ed&dopt=Abstract&list_uids=3931502&query_hl=1
N4)
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=retrieve&db=pubmed&list_uids=3305575&dopt=Abstract
N11)
http://www.ncbi.nlm.nih.gov/entrez/...d&dopt=Abstract&list_uids=11257075&query_hl=1
N12)
http://www.ncbi.nlm.nih.gov/entrez/...d&dopt=Abstract&list_uids=12053091&query_hl=1
N13)
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=3207604&dopt=Abstract
N14)
http://www.ncbi.nlm.nih.gov/entrez/...ve&db=PubMed&list_uids=11883334&dopt=Abstract
N15)
http://jcem.endojournals.org/cgi/content/full/83/5/1633
N16)
http://jcem.endojournals.org/cgi/content/abstract/80/11/3191
N21)
http://www.ncbi.nlm.nih.gov/entrez/...d&dopt=Abstract&list_uids=15998589&query_hl=1
N22)
http://www.ncbi.nlm.nih.gov/entrez/...d&dopt=Abstract&list_uids=14759718&query_hl=1
N23)
http://www.ncbi.nlm.nih.gov/entrez/...d&dopt=Abstract&list_uids=10651345&query_hl=1
N24)
http://www.ncbi.nlm.nih.gov/entrez/...ed&dopt=Abstract&list_uids=2237557&query_hl=1
N25)
http://www.ncbi.nlm.nih.gov/entrez/...ed&dopt=Abstract&list_uids=3664552&query_hl=1
N27)
http://www.ncbi.nlm.nih.gov/entrez/...d&dopt=Abstract&list_uids=15238910&query_hl=1
N29)
http://www.ncbi.nlm.nih.gov/entrez/...ed&dopt=Abstract&list_uids=3123765&query_hl=1