My wife is suffering from Anemia, HB level was 7.7...

Causes of iron deficiency anemia

Inadequate iron intake
Pregnancy
Heavy menstrual bleeding and blood loss during childbirth
Internal bleeding : such as an ulcer in your stomach, polyps in the colon or intestines, or colon cancer and regular use of pain relievers, such as aspirin and NSAID
Inability to absorb iron SUCH AS celiac disease or intestinal surgery such as gastric bypass may limit the amount of iron your body can absorb
Endometriosis
Certain drugs such as Methotrexate

Signs and symptoms of IDA

general fatigue
weakness
pale skin
shortness of breath
dizziness
strange cravings to eat items that aren’t food, such as dirt, ice, or clay
a tingling or crawling feeling in the legs
tongue swelling or soreness
cold hands and feet
fast or irregular heartbeat
brittle nails
headaches

Advice

We need to know what is the cause that you might have in order to grt the benifet from the treatment