Famotidine is unique among the H2 antagonists that it does not activate aromatase, cause osteoporosis, inhibit cytochrome p450 or suppress the immune system. I already posted some studies on the more interesting properties of famotidine. The studies in this thread are a more general summary of conditions famotidine has been shown to help.
1. Hepatoprotective
http://www.ncbi.nlm.nih.gov/pubmed/20070855
2. Promotes wound healing
http://www.ncbi.nlm.nih.gov/pubmed/17431284
3. Autism
http://www.ncbi.nlm.nih.gov/pubmed/11459079
4. Schizophrenia
http://www.ncbi.nlm.nih.gov/pubmed/10410190
5. Parkinson disease
http://www.ncbi.nlm.nih.gov/pubmed/8527008
6. Radiation protection
http://www.ncbi.nlm.nih.gov/pubmed/25634516
http://www.ncbi.nlm.nih.gov/pubmed/24619016
1. Hepatoprotective
http://www.ncbi.nlm.nih.gov/pubmed/20070855
2. Promotes wound healing
http://www.ncbi.nlm.nih.gov/pubmed/17431284
3. Autism
http://www.ncbi.nlm.nih.gov/pubmed/11459079
4. Schizophrenia
http://www.ncbi.nlm.nih.gov/pubmed/10410190
5. Parkinson disease
http://www.ncbi.nlm.nih.gov/pubmed/8527008
6. Radiation protection
http://www.ncbi.nlm.nih.gov/pubmed/25634516
http://www.ncbi.nlm.nih.gov/pubmed/24619016