The next day, if you did not notice an effect from kava, you could take more. If you took 50 mg of kavalactones then you could increase it to 70-80 mg. Again if there has been no effect within 2-3 hours then you could take another capsule. If the kava did not provide you with any effects the first couple of days, then you could increase your dosage to 100 mg of kavalactones. You should notice an effect at this dosage.
Some individuals require a higher dosage than others initially to feel any effects.
Once you feel an effect, you can generally be more attuned to feel similar effects at lower doses. Heavy consumption of kava is associated with a skin disorder consisting of a scaly rash and eye irritation. Stopping the use of kava kava for a while will cure this side effect. Headaches are infrequent. If you require a high dose of kava to feel an effect, your best option is to take a pill several times a day instead of taking multiple pills at once.