Vivarin, Caffeine Pills, 200mg Caffeine per Dose, Safely and Effectively Helps You Stay Awake, No Sugar, Calories or Hidden Ingredients, Energy Supplement, 40 Tablets

These work as expected. The dosage is perfect for me at 200 mg of caffeine. I like that they work much faster and are more convenient than drinking coffee or energy drinks, not to mention, it is cheaper. The pills are easy to swallow. No side effects. I like that the pills came inblister packs and not a bottle because it fits more easily into my bag to have with me on the go if needed.

Works wonderfully, no jitters or anxiety but a good, steady flow of energy. No trouble sleeping at night, I take it in the morning and it gets me through the day. Very affordable, good strength. I don’t experience GI side effects that I can tell, and it helps me exercise and focus on studying, too.

Gives you the same energy as a cup or more of coffee in morning or afternoon. I hate the taste of coffee in the AM so I have been using this daily for over 30 years and for myself it definitely wakes me up quicker than coffee.

This caffeine supplement is amazing. I’ve been drinking coffee and highly caffeinated tea for years. I never liked the taste. No matter how much I doctored up my coffee, the aftertaste was horrible. I like that I don’t have to use the bathroom excessively after I take this pill. It’s easy to swallow and works within 20 minutes. I have never had trouble falling asleep after it. But I never take it after 2:30. I usually only need one a day. Very cheap especially when compared to the cost of coffee. I have had no adverse effects

Almost a 3 but made the 4 star for providing just enough energy. It’s slightly weaker than a full 8 oz cup of black, strong coffee. Was hoping for more but then again, my tolerance for energy supplements is very high. Worth a shot if you’re sensitive to caffeine.

I just started taking these and the first day I noticed a great improvement in my alertness and I feel energized. I like how I got the blister pack because it is easier for me to store in my purse or some place a bulky bottle won't fit. I took one pill and it lasted for hours. I highly recommend this if you need to get work done or want to be awake and just enjoy some time to yourself if you couldn't before because of tiredness.

This is my morning coffee substitute.I know, I know . . I lose the wonderful aroma of coffee brewing and the ritual of waking up slowly with a warm mug in my hands.Here's why: I get to attend my yoga class without running off to the bathroom. I don't have to purchase, prepare or clean up a coffee mess. One less appliance in my kitchen and fewer bathroom runs. I'm in.

Normally this are a solid choice for caffeine pills, but boxes that expire in September were delivered at the end of May, giving barely 3 months before expiration. I'd expect at least a year out.This is disappointing, and if it becomes a consistent occurrence, I'll look for something else.