Butalbital Butalbital/APAP/Caffeine may cause you to become drowsy

... trouble. This medication contains acetaminophen (Tylenol), which is toxic to your liver and can be fatal when take above the recommended dosage. The total daily dose of acetaminophen should not exceed 4000mg (4g), or 2000mg (2g) if you are elderly or a chronic user of acetaminophen. Keep in mind that many over the counter products contain acetaminophen, and each tablet of this product contains ...