earthclinic.com is my go-to place for over-the-counter remedies. I typed in Overactive bladder in the search engine and the main remedy discussed is 1/8 - 1/4 tsp/day of nutmeg in water or coffee. According to some of the shared anecdotes, back in the day the aunts and grandmothers would dose up on nutmeg (no more than 1/4 tsp) when they had to take a trip to prevent their overactive bladder symptoms.
Looking up contraindicatons for nutmeg the websites say avoid nutmeg if you are pregnant or breastfeeding. Don't take too much of it to avoid hallucinations (5 grams at a time to get hallucinations). Don't take it if you have liver problems. Don't take it long term because it has safrole which is a carcinogen.
https://www.botanical-online.com/en/...traindications
The side effects are a lot less than most of the medicines out there :-). Let us know if you try the nutmeg. Start with 1/8 teaspoon a day and see if you get relief. After the bladder is calm you will probably be able to skip a few days without needing it based on the stories in earthclinic.com
Has anyone tried this or heard of their relatives using it this way? You can buy nutmeg in the grocery store at a very affordable price as compared to medicines.