In 117 countries, Nicotine Replacement Therapy (NRT) products (e.g. patches, gums) are currently legal to use without a prescription.
They are:
Afghanistan Algeria Andorra Antigua and Barbuda Argentina Armenia Australia Austria Bahamas Bahrain Barbados Belarus Belgium Bosnia and Herzegovina Brazil Brunei Bulgaria Canada Chad China Colombia Congo Cook Islands Costa Rica Croatia Cyprus Czech Republic Democratic Republic of Congo Denmark Dominican Republic Estonia Fiji Finland France Gabon Georgia Germany Greece Guatemala Guyana Hungary Iceland India Indonesia Iran Iraq Ireland Israel Italy Ivory Coast Japan Jordan Kazakhstan Kenya Kuwait Latvia Lebanon Lithuania Luxembourg Macedonia Madagascar Malaysia Malta Marshall Islands Mauritius Mexico Monaco Mongolia Morocco Namibia Netherlands New Zealand Nicaragua Niger Nigeria Niue Norway Oman Pakistan Palau Palestine / West Bank & Gaza strip Panama Papua New Guinea Poland Portugal Romania Russian Federation Saint Kitts and Nevis Saint Lucia Samoa Saudi Arabia Serbia Seychelles Singapore Slovakia Slovenia South Africa South Korea Spain Suriname Sweden Switzerland Thailand Tonga Trinidad and Tobago Turkey Turkmenistan Uganda Ukraine United Arab Emirates United Kingdom United States Uruguay Uzbekistan Vanuatu Venezuela Vietnam