Hi I am 36 year old with anxiety. Doctor gave me prothiaden 25 mg for 7 days at bedtime and increase it with 50 mg .but I am afraid of the side effects. I used it for 5 days at bed time. And in the morning I feel drowsy all the time, heart beat disorder, dry mouth and blurred vision is also there .i want to stop this tablet. Can I stop prothiaden25 mg (once a day at bed time) after using 5 days. Shall I decrease the dosage. Is it available at 15 mg or 10 mg. Please suggest me. I am afraid of the side effects .i just had 5 tabs of 25 mg.