Cough Formula. Cough Formula is a homoeopathic remedy for the treatment of spasmodic, irritating coughs. Dosage 10 Drops on the tongue every hour with the start of a cough. Reduce dosage to 4 times daily once improvement is noticed and discontinue once coughing has stopped. This product contains medicinal alcohol which will evaporate once added to a little lukewarm water Ingredients Ginkgo biloba D2, Cetreria islandica D1, Aralia racemosa D2, Phellandrium aquaticum D2, Ipecacuanha D6, Drosera rot. D1, Cuprum aceticum D6, Ammi visnaga D1. Alcohol content: 65% v/v.