is a tablet which contains an antihistamine and a decongestant, these drugs are easily available over the counter with any hassle , but it also depends on countries law, some countries it may not be available, what i suggest is you ask the pharmacist for another drug with same combination. also you get better tablet with very less side effects like drowsiness
also you can take steroidal nasal spray
which is very effective in controlling symptoms and with zero side.i recommend steroidal nasal spray containing fluticasone
it is easily available also.