That's because the metabolic pathways available to break down carbs for energy are more efficient than the pathways available for fat breakdown. For long, slower exercise, fat is used more for energy than carbs. When it comes to weight loss, it doesn't matter what type of fuel you use.
1 Cimetidine (Tagamet, Tagamet HB). 2  Cimetidine (Tagamet) is the oldest H2 blocker. 3  It has few side effects; approximately 1% of people taking it will experience mild temporary diarrhea, dizziness, rash, or headache.alcium carbonate (Tums, Titralac, and Alka-2) is a potent and rapid acting antacid that can cause constipation. These antacids are actually sources of calcium. There have been rare cases of hypercalcemia (elevated levels of calcium in the blood) in people taking calcium carbonate for long periods of time.
Cimetidine INN (/sÉ¨ËmÉtÉ¨diËn/ or /saÉªËmÉtÉ¨diËn/) is a histamine H2-receptor antagonist that inhibits stomach acid production. It is largely used in the treatment of heartburn and peptic ulcers.It has been marketed by GlaxoSmithKline (which is selling the brand to Prestige Brands) under the trade name Tagamet (sometimes Tagamet HB or Tagamet HB200).imetidine, approved by the FDA for inhibition of gastric acid secretion, has been advocated for a number of dermatological diseases. Cimetidine was the prototypical histamine H2-receptor antagonist from which the later members of the class were developed.