Final answer:
Cimetidine (Tagamet) can cause adverse effects such as increased heart rate, hypertension, and indigestion. It is also associated with an increased risk of heart attacks, colon cancer, and other serious conditions.
Step-by-step explanation:
The adverse effect of Cimetidine (Tagamet) can include increased heart rate, hypertension, and an increased probability of heart attacks. It can also cause indigestion, heartburn, stomach pain, nausea, diarrhea, constipation, and weight gain or loss.
Some additional negative side effects that have been associated with Cimetidine include an increased risk of stroke or heart attack, blood clots, breast cancer, colon cancer, endometrial cancer, gall bladder disease, and possibly dementia.
Other possible negative side effects of Cimetidine are an increased risk of colon cancer, osteoporosis, heart disease, macular degeneration, and possibly depression.